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1974 Established in Grilles • Diffusers • External Louvres • Dampers • Ancillaries Air-Precision Product Range

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1974Established in

Grilles bull Diffusers bull External Louvres bull Dampers bull Ancillaries

Air-Precision Product Range

infomonodraughtcom +44 (0)1494 897700 2

Monodraught are the recognised market leaders in ultra-low carbon low energy solutions for Natural Lighting Natural Cooling and Natural VentilationSUNPIPEreg COOL‑PHASEreg and WINDCATCHERreg brands are synonymous with quality and innovation (ISO9001 amp 14001) and are supported by our market leading design service

A new addition to the Monodraught portfolio is our extensive range of Air‑Precision products (Grilles Diffusers External Louvres and Volume Control Dampers)

Olympic Handball Arena

SUNPIPE COOL-PHASE

Cambridge University

Monodraught Head Office

WINDCATCHER

Takeley Primary SchoolGRILLES

Monodraught products are designed and manufactured in Great Britain

ANCILLARIES

DIFFUSERS LOUVRES DAMPERS

We are supporting Air-Precision range with

bull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL

colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a

10 year guarantee

DE

SIGNED

amp

MAN

UFACTUREDINBRI

TAIN

infomonodraughtcom +44 (0)1494 897700 3

Contents Grilles and DiffusersPage

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

Series Series Name Recommended Use Location Page

SD Single deflection grille Supply Wall and ceiling 4

DD Double deflection grille Supply Wall and ceiling 4

FB Fixed blade grille Extract and supply Wall and ceiling 4

ECG Egg crate grille Extract Wall and ceiling 4

NV Non vision grille Extract and transfer Wall and door 4

CB Curved blade grille Eyelash diffuser Supply Ceiling 4

LG Linear bar grille Extract and supply Wall and ceiling 4

LGFR Reinforced linear bar grille Extract and supply Wall ceiling and floor 4

CFLG‑B Computer room floor grille (Heavy grade) ‑ Type B Extract and supply Raised access floor 5

CFLG‑C Computer room floor grille (Extra heavy grade) ‑ Type C Extract and supply Raised access floor 5

RGS Spiral duct grille Extract and supply Spiral duct 5

FLC Flexible linear core Extract and supply Floor 5

PS Pressed steel range Extract supply and transfer Wall ceiling and floor 5

LFP Laminar flow panel Supply Ceiling 5

PPG Perforated plate grille Extract and supply Wall and ceiling 5

CD Ceiling diffuser Supply Ceiling 6

DJ‑P Drum jet diffuser ‑ Premium range Supply Wall ceiling and spiral ducting 6

DJ‑S Drum jet diffuser ‑ Stock range Supply Wall ceiling and spiral ducting 6

LSD Linear slot diffuser Extract and supply Wall and ceiling 6

LCD Linear ceiling diffuser Supply Ceiling 6

PPD Perforated plate diffuser Extract and supply Ceiling 6

LFCD Large format circular diffuser Supply Ceiling and spiral ducting 6

SFCDA Small format circular diffuser Supply Ceiling and spiral ducting 7

SWF Swirl diffuser ‑ Fixed Supply Ceiling 7

SWA Swirl diffuser ‑ Adjustable Supply Ceiling 7

FSW Floor swirl diffuser Extract and supply Floor 7

JFD Jet flow diffuser Supply Wall ceiling and spiral ducting 7

1 Grilles and Diffusers 3

2 Louvre Systems 7

3 Fire Dampers and Volume Control Dampers 9

4 Ancillaries 11

infomonodraughtcom +44 (0)1494 897700 4

Grilles and Diffusers

Deflection grillesFunctional and cost effective terminals

bull Series SD - Single deflection grille A single bank of individually adjustable blades allowing throw adjustment in one plane

bull Series DD - Double deflection grille Two sets of individually adjustable blades set at 90o to each other allowing throw adjustment in two planes

bull Series FB - Fixed blade grille Identical to single deflections but the blades are factory set at either 0o 15o or 45o

Non vision grillesTransfer grilles with a sight blocking design for privacy

bull Series NV1 - Non vision grille A standard non vision grille with one bank of chevron blades

bull Series NV2 - Non vision grille with backing frame A NV1 but with a backing frame to suit doors

bull Series NV3 - Double layered grille for dark rooms Two banks of chevron blades for maximum light blocking

bull Series NV4 - Slimline surface mounted non vision grille Surface mounted grille suitable for use with fire doors in conjunction with intumescent fire blocks

Egg crate grillesHigh performance extract grilles

bull Series ECG - Egg crate grille The industry standard extract grille with a 125 mm square aluminium egg crate core giving a free area of over 90 Suitable for handling high air volumes with minimal noise generation and pressure drop

bull Series ECG45 - Egg crate grille with 45deg core A core with one set of vanes slanted at 45deg with the second set at 0deg gives this series of egg crate grille a directional throw and also a non vision property from most angles

Curved blade grilles Eyelash diffusersFunctional and cost effective terminals

bull Series CB Primarily used for supply curved blade grilles give an architectural and unconventional appearance individually adjustable blades and excellent diffusion characteristics Available in five blow patterns to suit any installation

Reinforced linear bar grillesbull Series LGFR

A specially reinforced linear bar grille designed to sustain moderate loads and impacts

The additional strength makes reinforced linear bar grilles suitable for installation at low level in corridors into sport halls or anywhere else they may be subject to impacts

Up to 300 mm high these grilles are suitable for installation into floors and can support light foot traffic

Linear bar grillesbull Series LG

A hugely versatile grille with a wealth of options and permutations

By specifying different designs linear bar grilles can be designed to suit supply or extract applications in a wide range of installations and locations

infomonodraughtcom +44 (0)1494 897700 5

Computer room floor grillesFully certified and purpose designed for raised access flooring systems

bull Series CFLG-B - Heavy grade Independently certified to heavy grade when tested to BS EN 132642001 CFLG‑B grilles are the tried and trusted floor grille design used in countless installations throughout the world

bull Series CFLG-C - Extra heavy grade Independently certified to extra heavy grade when tested to BS EN 132642001 CFLG‑C grilles are light stronger and thinner than CFLG‑B grilles Designed entirely using computer simulation software this is the next generation of computer room floor grille

Flexible linear corebull Series FLC

Designed for lay‑in trench applications flexible linear core is useful where trenches in floors need to be covered but also where access and ventilation are required

Supplied in natural finish (satin anodised blades and gloss black tube) maximum width is 300 mm length is unlimited but large units will be manufactured in sections

Spiral duct grillesbull Series RGS

Purpose designed to be fitted directly to spiral ducting with no saddle adaptation spiral duct grilles are cost‑effective units available in seven different models to suit any installation

Accessories include rear mounted volume control dampers and directional vanes

Pressed steel rangePrimarily used in domestic and commercial warm air heating applications pressed steel grilles also lend themselves well to fitting into doors or for transfer applications

bull Series PSG - Pressed steel grille Standard pressed steel grille

bull Series PSR - Pressed steel register As PSG but with a lever operated volume control damper

bull Series PSCD - Pressed steel ceiling diffuser Incorporates a cord operated volume control damper

bull Series PSFD - Pressed steel floor diffuser As PSCD but with a roller operated damper

Perforated plate grillesbull Series PPG

A perforated core held within an aluminium frame give this series of grille a laminar throw when used for supply as opposed to other types which may seek to rapidly diffuse supplied air

The 3 mm hole diameter means perforated plate grilles are tamper proof

Available with internal deflector plates to create different throw patterns if required

Laminar flow panelsbull Series LFP

Simple but effective supply diffusers laminar flow panels are frequently used in areas like laboratories and operating theatres where a zone of stable supplied air is more desirable than rapidly diffused throw

Laminar flows incorporate a side or top entry plenum box with 300 mm diameter spigot as standard Spigot mounted volume control dampers are optional for local balancing of airflow

Normally supplied in tile replacer sizes

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 6

Ceiling diffusersbull Series CD

The classic louvre faced ceiling diffuser used in countless installations worldwide Now with a shallower profile and new blade design for lightweight but still high quality unit

Monodraught ceiling diffusers are manufactured from extruded aluminium throughout we do not supply cheap pressed models

CDrsquos are held in stock in common sizes and can also be manufactured to order in any size

Linear slot diffusersbull Series LSD

An understated appearance combined with a powerful and controllable performance

Linear slot diffusers are available with 1 to 8 slots and can be fitted with internal deflector blades if being used for supply

Specially adapted plenum boxes are also available to compliment these diffusers series facilitating simple connection to ductwork and can be fitted with spigot mounted volume control dampers if required

Drum jet diffusersA high level of adjustability and long throw make these series perfect for large open plan areas

bull Series DJ-P - Premium drum jets Manufactured to order and with a range of options including volume equalising deflectors and opposed blade dampers

bull Series DJ-P - Stock drum jets Held in stock in satin anodised and RAL9010 finish stock drum jets are more cost‑effective than premium models

Linear ceiling diffusersbull Series LCD

An excellent diffuser choice where building occupant comfort is priority

Linear ceiling diffusers use a 45deg blade with an additional lip forcing supplied air along the line of the ceiling used to coanda effect By exploiting this effect a large area can be covered from a small number of diffusers

Available with one way or two way blow core set ups

Circular diffusersA 360deg throw and high capacity make circular diffusers the perfect diffuser type for large open plan areas requiring high changeover rates

bull Series LFCD - Large format circular diffuser Designed for high to very high air volumes large format circular diffusers are available in sizes from 340 mm to 1170 mm overall diameter

bull Series SFCDA - Small format circular diffuser Simply a smaller version of the series LFCD small format circulars are available in sizes from 150 mm to 350 mm nominal diameter

Perforated plate diffusersbull Series PPD

A perforated core held within a ceiling diffuser type frame

This diffuser type is intended for areas with lay ceiling systems and where a more targeted vertical throw is preferred to the spread out throw created by ceiling diffusers

Should a specific throw type be required concealed internal deflector plates can be fitted to create numerous throw patterns

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 7

Swirl diffusersHigh performance supply diffusers All in 595 mm x 595 mm overall size tiles

bull Series SWF - Fixed blade swirl diffuser Available with core diameters of 254 mm 356 mm 457 mm and 535 mm

bull Series SWA - Adjustable blade swirl diffuser Available in 12 24 and 36 slot models adjustable blade swirl diffusers have individually adjustable blades to allow throw adjustment to suit their location

Jet flow eyeball diffusersbull Series JFD

A specialist diffuser often installed in banks of multiple units

Jet flow diffusers create a long targeted throw and are designed for large open plan areas where air‑flows may need to span a large distance

The inner ball rotates freely for a fully adjustable throw

Floor swirl diffusersbull Series FSW

Combining the high performance airflow characteristics of a swirl diffuser with a specially reinforced design suitable for foot traffic

Floor swirls are suitable for any sort of raised access floor and contain a concealed and integrated swirl blade set and dirt catchment tray to prevent floor voids becoming dirty

Available in 150 mm and 200 mm diameter sizes

GRILLES AND DIFFUSERS

Louvre Systems

Series Series Name Page

WL Standard weather louvres 8

WLSS WLG Stainless galvanised steel weather louvres 8

CL Circular cast louvres 8

AL Acoustic louvres 8

STL Sand trap louvres ‑ Tested to BS EN 131812001 8

HPL High performance louvres (Class A) ‑ Tested to BS EN 130302001 8

DBL Double bank louvres 9

WL‑BDS VCD Weather louvre combination units 9

PHL Penthouse louvres 9

infomonodraughtcom +44 (0)1494 897700 8

Louvre SystemsStandard weather louvres

bull Series WL Standard weather louvres are the single bank weather louvre type used in countless installations throughout the world

Available in four formats to suit any size installation all WL types have a single bank of blades with a 45deg face for good levels of rain resistance in all but the most demanding conditions

Minimal resistance to airflow is assured with an approximate free area of 50 on all formats

Circular cast louvresbull Series CL

Small diameter external louvres designed for applications requiring a high free area external vent perfect for bathroom extractor fans etc

Manufactured from a single aluminium casting they are the rattle free and robust and are supplied factory fitted with stainless steel bird screen

CL louvres can be fixed through the face into the substrate or by using concealed holes in the neck

Stainless galvanised steel weather louvresFor installations requiring the aesthetics of galvanised steel or the corrosion resistance of stainless steel

Both series are manufactured using the latest CNC brake press technology and dedicated press tooling for the highest quality product

bull Series WLG ‑ Galvanised steel weather louvresbull Series WLSS ‑ Stainless steel weather louvres

Available in stainless steel grades 430 304 and 316 (marine specification)

Acoustic louvresbull Series AL

Series AL acoustic louvres are specialist external louvres designed primarily for areas like plant rooms or inner city car parks where noise generated by machinery or vehicles cannot be allowed to leak into the surrounding area

Using a twin part aluminium blade infilled with mineral wool Monodraught acoustic louvres offer a high resistance to rain ingress whilst also having sufficient depth to provide useful levels of sound attenuation throughout a wide range of frequencies Available in 150 mm 300 mm and 600 mm deep variants

High performance louvresbull Series HPL

An independently tested weather louvre certified by BSRIA to provide lsquoClass Arsquo rain protection when tested against BS EN 130302001 With a primary bank of standard weather louvre blades Series HPL louvres have a conventional appearance perfect for installations where high performance louvres may sit alongside standard louvres or site‑assembly louvre cladding At the rear two banks of vertical channels act to catch any water which penetrates the outer blades this then falls into a drip cill mounted at the base of the louvre and flows out through a concealed gap between the bottom blade and the frame

Sand trap louvresbull Series STL

Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 131812001 and proven to catch up to 925 of sand and dust

With two banks of interlocking vertical blades sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent

The open ended blade design prevents clogging of the louvre in contrast to the use of drain holes which are prone to becoming blocked

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 2

Monodraught are the recognised market leaders in ultra-low carbon low energy solutions for Natural Lighting Natural Cooling and Natural VentilationSUNPIPEreg COOL‑PHASEreg and WINDCATCHERreg brands are synonymous with quality and innovation (ISO9001 amp 14001) and are supported by our market leading design service

A new addition to the Monodraught portfolio is our extensive range of Air‑Precision products (Grilles Diffusers External Louvres and Volume Control Dampers)

Olympic Handball Arena

SUNPIPE COOL-PHASE

Cambridge University

Monodraught Head Office

WINDCATCHER

Takeley Primary SchoolGRILLES

Monodraught products are designed and manufactured in Great Britain

ANCILLARIES

DIFFUSERS LOUVRES DAMPERS

We are supporting Air-Precision range with

bull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL

colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a

10 year guarantee

DE

SIGNED

amp

MAN

UFACTUREDINBRI

TAIN

infomonodraughtcom +44 (0)1494 897700 3

Contents Grilles and DiffusersPage

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

Series Series Name Recommended Use Location Page

SD Single deflection grille Supply Wall and ceiling 4

DD Double deflection grille Supply Wall and ceiling 4

FB Fixed blade grille Extract and supply Wall and ceiling 4

ECG Egg crate grille Extract Wall and ceiling 4

NV Non vision grille Extract and transfer Wall and door 4

CB Curved blade grille Eyelash diffuser Supply Ceiling 4

LG Linear bar grille Extract and supply Wall and ceiling 4

LGFR Reinforced linear bar grille Extract and supply Wall ceiling and floor 4

CFLG‑B Computer room floor grille (Heavy grade) ‑ Type B Extract and supply Raised access floor 5

CFLG‑C Computer room floor grille (Extra heavy grade) ‑ Type C Extract and supply Raised access floor 5

RGS Spiral duct grille Extract and supply Spiral duct 5

FLC Flexible linear core Extract and supply Floor 5

PS Pressed steel range Extract supply and transfer Wall ceiling and floor 5

LFP Laminar flow panel Supply Ceiling 5

PPG Perforated plate grille Extract and supply Wall and ceiling 5

CD Ceiling diffuser Supply Ceiling 6

DJ‑P Drum jet diffuser ‑ Premium range Supply Wall ceiling and spiral ducting 6

DJ‑S Drum jet diffuser ‑ Stock range Supply Wall ceiling and spiral ducting 6

LSD Linear slot diffuser Extract and supply Wall and ceiling 6

LCD Linear ceiling diffuser Supply Ceiling 6

PPD Perforated plate diffuser Extract and supply Ceiling 6

LFCD Large format circular diffuser Supply Ceiling and spiral ducting 6

SFCDA Small format circular diffuser Supply Ceiling and spiral ducting 7

SWF Swirl diffuser ‑ Fixed Supply Ceiling 7

SWA Swirl diffuser ‑ Adjustable Supply Ceiling 7

FSW Floor swirl diffuser Extract and supply Floor 7

JFD Jet flow diffuser Supply Wall ceiling and spiral ducting 7

1 Grilles and Diffusers 3

2 Louvre Systems 7

3 Fire Dampers and Volume Control Dampers 9

4 Ancillaries 11

infomonodraughtcom +44 (0)1494 897700 4

Grilles and Diffusers

Deflection grillesFunctional and cost effective terminals

bull Series SD - Single deflection grille A single bank of individually adjustable blades allowing throw adjustment in one plane

bull Series DD - Double deflection grille Two sets of individually adjustable blades set at 90o to each other allowing throw adjustment in two planes

bull Series FB - Fixed blade grille Identical to single deflections but the blades are factory set at either 0o 15o or 45o

Non vision grillesTransfer grilles with a sight blocking design for privacy

bull Series NV1 - Non vision grille A standard non vision grille with one bank of chevron blades

bull Series NV2 - Non vision grille with backing frame A NV1 but with a backing frame to suit doors

bull Series NV3 - Double layered grille for dark rooms Two banks of chevron blades for maximum light blocking

bull Series NV4 - Slimline surface mounted non vision grille Surface mounted grille suitable for use with fire doors in conjunction with intumescent fire blocks

Egg crate grillesHigh performance extract grilles

bull Series ECG - Egg crate grille The industry standard extract grille with a 125 mm square aluminium egg crate core giving a free area of over 90 Suitable for handling high air volumes with minimal noise generation and pressure drop

bull Series ECG45 - Egg crate grille with 45deg core A core with one set of vanes slanted at 45deg with the second set at 0deg gives this series of egg crate grille a directional throw and also a non vision property from most angles

Curved blade grilles Eyelash diffusersFunctional and cost effective terminals

bull Series CB Primarily used for supply curved blade grilles give an architectural and unconventional appearance individually adjustable blades and excellent diffusion characteristics Available in five blow patterns to suit any installation

Reinforced linear bar grillesbull Series LGFR

A specially reinforced linear bar grille designed to sustain moderate loads and impacts

The additional strength makes reinforced linear bar grilles suitable for installation at low level in corridors into sport halls or anywhere else they may be subject to impacts

Up to 300 mm high these grilles are suitable for installation into floors and can support light foot traffic

Linear bar grillesbull Series LG

A hugely versatile grille with a wealth of options and permutations

By specifying different designs linear bar grilles can be designed to suit supply or extract applications in a wide range of installations and locations

infomonodraughtcom +44 (0)1494 897700 5

Computer room floor grillesFully certified and purpose designed for raised access flooring systems

bull Series CFLG-B - Heavy grade Independently certified to heavy grade when tested to BS EN 132642001 CFLG‑B grilles are the tried and trusted floor grille design used in countless installations throughout the world

bull Series CFLG-C - Extra heavy grade Independently certified to extra heavy grade when tested to BS EN 132642001 CFLG‑C grilles are light stronger and thinner than CFLG‑B grilles Designed entirely using computer simulation software this is the next generation of computer room floor grille

Flexible linear corebull Series FLC

Designed for lay‑in trench applications flexible linear core is useful where trenches in floors need to be covered but also where access and ventilation are required

Supplied in natural finish (satin anodised blades and gloss black tube) maximum width is 300 mm length is unlimited but large units will be manufactured in sections

Spiral duct grillesbull Series RGS

Purpose designed to be fitted directly to spiral ducting with no saddle adaptation spiral duct grilles are cost‑effective units available in seven different models to suit any installation

Accessories include rear mounted volume control dampers and directional vanes

Pressed steel rangePrimarily used in domestic and commercial warm air heating applications pressed steel grilles also lend themselves well to fitting into doors or for transfer applications

bull Series PSG - Pressed steel grille Standard pressed steel grille

bull Series PSR - Pressed steel register As PSG but with a lever operated volume control damper

bull Series PSCD - Pressed steel ceiling diffuser Incorporates a cord operated volume control damper

bull Series PSFD - Pressed steel floor diffuser As PSCD but with a roller operated damper

Perforated plate grillesbull Series PPG

A perforated core held within an aluminium frame give this series of grille a laminar throw when used for supply as opposed to other types which may seek to rapidly diffuse supplied air

The 3 mm hole diameter means perforated plate grilles are tamper proof

Available with internal deflector plates to create different throw patterns if required

Laminar flow panelsbull Series LFP

Simple but effective supply diffusers laminar flow panels are frequently used in areas like laboratories and operating theatres where a zone of stable supplied air is more desirable than rapidly diffused throw

Laminar flows incorporate a side or top entry plenum box with 300 mm diameter spigot as standard Spigot mounted volume control dampers are optional for local balancing of airflow

Normally supplied in tile replacer sizes

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 6

Ceiling diffusersbull Series CD

The classic louvre faced ceiling diffuser used in countless installations worldwide Now with a shallower profile and new blade design for lightweight but still high quality unit

Monodraught ceiling diffusers are manufactured from extruded aluminium throughout we do not supply cheap pressed models

CDrsquos are held in stock in common sizes and can also be manufactured to order in any size

Linear slot diffusersbull Series LSD

An understated appearance combined with a powerful and controllable performance

Linear slot diffusers are available with 1 to 8 slots and can be fitted with internal deflector blades if being used for supply

Specially adapted plenum boxes are also available to compliment these diffusers series facilitating simple connection to ductwork and can be fitted with spigot mounted volume control dampers if required

Drum jet diffusersA high level of adjustability and long throw make these series perfect for large open plan areas

bull Series DJ-P - Premium drum jets Manufactured to order and with a range of options including volume equalising deflectors and opposed blade dampers

bull Series DJ-P - Stock drum jets Held in stock in satin anodised and RAL9010 finish stock drum jets are more cost‑effective than premium models

Linear ceiling diffusersbull Series LCD

An excellent diffuser choice where building occupant comfort is priority

Linear ceiling diffusers use a 45deg blade with an additional lip forcing supplied air along the line of the ceiling used to coanda effect By exploiting this effect a large area can be covered from a small number of diffusers

Available with one way or two way blow core set ups

Circular diffusersA 360deg throw and high capacity make circular diffusers the perfect diffuser type for large open plan areas requiring high changeover rates

bull Series LFCD - Large format circular diffuser Designed for high to very high air volumes large format circular diffusers are available in sizes from 340 mm to 1170 mm overall diameter

bull Series SFCDA - Small format circular diffuser Simply a smaller version of the series LFCD small format circulars are available in sizes from 150 mm to 350 mm nominal diameter

Perforated plate diffusersbull Series PPD

A perforated core held within a ceiling diffuser type frame

This diffuser type is intended for areas with lay ceiling systems and where a more targeted vertical throw is preferred to the spread out throw created by ceiling diffusers

Should a specific throw type be required concealed internal deflector plates can be fitted to create numerous throw patterns

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 7

Swirl diffusersHigh performance supply diffusers All in 595 mm x 595 mm overall size tiles

bull Series SWF - Fixed blade swirl diffuser Available with core diameters of 254 mm 356 mm 457 mm and 535 mm

bull Series SWA - Adjustable blade swirl diffuser Available in 12 24 and 36 slot models adjustable blade swirl diffusers have individually adjustable blades to allow throw adjustment to suit their location

Jet flow eyeball diffusersbull Series JFD

A specialist diffuser often installed in banks of multiple units

Jet flow diffusers create a long targeted throw and are designed for large open plan areas where air‑flows may need to span a large distance

The inner ball rotates freely for a fully adjustable throw

Floor swirl diffusersbull Series FSW

Combining the high performance airflow characteristics of a swirl diffuser with a specially reinforced design suitable for foot traffic

Floor swirls are suitable for any sort of raised access floor and contain a concealed and integrated swirl blade set and dirt catchment tray to prevent floor voids becoming dirty

Available in 150 mm and 200 mm diameter sizes

GRILLES AND DIFFUSERS

Louvre Systems

Series Series Name Page

WL Standard weather louvres 8

WLSS WLG Stainless galvanised steel weather louvres 8

CL Circular cast louvres 8

AL Acoustic louvres 8

STL Sand trap louvres ‑ Tested to BS EN 131812001 8

HPL High performance louvres (Class A) ‑ Tested to BS EN 130302001 8

DBL Double bank louvres 9

WL‑BDS VCD Weather louvre combination units 9

PHL Penthouse louvres 9

infomonodraughtcom +44 (0)1494 897700 8

Louvre SystemsStandard weather louvres

bull Series WL Standard weather louvres are the single bank weather louvre type used in countless installations throughout the world

Available in four formats to suit any size installation all WL types have a single bank of blades with a 45deg face for good levels of rain resistance in all but the most demanding conditions

Minimal resistance to airflow is assured with an approximate free area of 50 on all formats

Circular cast louvresbull Series CL

Small diameter external louvres designed for applications requiring a high free area external vent perfect for bathroom extractor fans etc

Manufactured from a single aluminium casting they are the rattle free and robust and are supplied factory fitted with stainless steel bird screen

CL louvres can be fixed through the face into the substrate or by using concealed holes in the neck

Stainless galvanised steel weather louvresFor installations requiring the aesthetics of galvanised steel or the corrosion resistance of stainless steel

Both series are manufactured using the latest CNC brake press technology and dedicated press tooling for the highest quality product

bull Series WLG ‑ Galvanised steel weather louvresbull Series WLSS ‑ Stainless steel weather louvres

Available in stainless steel grades 430 304 and 316 (marine specification)

Acoustic louvresbull Series AL

Series AL acoustic louvres are specialist external louvres designed primarily for areas like plant rooms or inner city car parks where noise generated by machinery or vehicles cannot be allowed to leak into the surrounding area

Using a twin part aluminium blade infilled with mineral wool Monodraught acoustic louvres offer a high resistance to rain ingress whilst also having sufficient depth to provide useful levels of sound attenuation throughout a wide range of frequencies Available in 150 mm 300 mm and 600 mm deep variants

High performance louvresbull Series HPL

An independently tested weather louvre certified by BSRIA to provide lsquoClass Arsquo rain protection when tested against BS EN 130302001 With a primary bank of standard weather louvre blades Series HPL louvres have a conventional appearance perfect for installations where high performance louvres may sit alongside standard louvres or site‑assembly louvre cladding At the rear two banks of vertical channels act to catch any water which penetrates the outer blades this then falls into a drip cill mounted at the base of the louvre and flows out through a concealed gap between the bottom blade and the frame

Sand trap louvresbull Series STL

Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 131812001 and proven to catch up to 925 of sand and dust

With two banks of interlocking vertical blades sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent

The open ended blade design prevents clogging of the louvre in contrast to the use of drain holes which are prone to becoming blocked

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 3

Contents Grilles and DiffusersPage

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

Series Series Name Recommended Use Location Page

SD Single deflection grille Supply Wall and ceiling 4

DD Double deflection grille Supply Wall and ceiling 4

FB Fixed blade grille Extract and supply Wall and ceiling 4

ECG Egg crate grille Extract Wall and ceiling 4

NV Non vision grille Extract and transfer Wall and door 4

CB Curved blade grille Eyelash diffuser Supply Ceiling 4

LG Linear bar grille Extract and supply Wall and ceiling 4

LGFR Reinforced linear bar grille Extract and supply Wall ceiling and floor 4

CFLG‑B Computer room floor grille (Heavy grade) ‑ Type B Extract and supply Raised access floor 5

CFLG‑C Computer room floor grille (Extra heavy grade) ‑ Type C Extract and supply Raised access floor 5

RGS Spiral duct grille Extract and supply Spiral duct 5

FLC Flexible linear core Extract and supply Floor 5

PS Pressed steel range Extract supply and transfer Wall ceiling and floor 5

LFP Laminar flow panel Supply Ceiling 5

PPG Perforated plate grille Extract and supply Wall and ceiling 5

CD Ceiling diffuser Supply Ceiling 6

DJ‑P Drum jet diffuser ‑ Premium range Supply Wall ceiling and spiral ducting 6

DJ‑S Drum jet diffuser ‑ Stock range Supply Wall ceiling and spiral ducting 6

LSD Linear slot diffuser Extract and supply Wall and ceiling 6

LCD Linear ceiling diffuser Supply Ceiling 6

PPD Perforated plate diffuser Extract and supply Ceiling 6

LFCD Large format circular diffuser Supply Ceiling and spiral ducting 6

SFCDA Small format circular diffuser Supply Ceiling and spiral ducting 7

SWF Swirl diffuser ‑ Fixed Supply Ceiling 7

SWA Swirl diffuser ‑ Adjustable Supply Ceiling 7

FSW Floor swirl diffuser Extract and supply Floor 7

JFD Jet flow diffuser Supply Wall ceiling and spiral ducting 7

1 Grilles and Diffusers 3

2 Louvre Systems 7

3 Fire Dampers and Volume Control Dampers 9

4 Ancillaries 11

infomonodraughtcom +44 (0)1494 897700 4

Grilles and Diffusers

Deflection grillesFunctional and cost effective terminals

bull Series SD - Single deflection grille A single bank of individually adjustable blades allowing throw adjustment in one plane

bull Series DD - Double deflection grille Two sets of individually adjustable blades set at 90o to each other allowing throw adjustment in two planes

bull Series FB - Fixed blade grille Identical to single deflections but the blades are factory set at either 0o 15o or 45o

Non vision grillesTransfer grilles with a sight blocking design for privacy

bull Series NV1 - Non vision grille A standard non vision grille with one bank of chevron blades

bull Series NV2 - Non vision grille with backing frame A NV1 but with a backing frame to suit doors

bull Series NV3 - Double layered grille for dark rooms Two banks of chevron blades for maximum light blocking

bull Series NV4 - Slimline surface mounted non vision grille Surface mounted grille suitable for use with fire doors in conjunction with intumescent fire blocks

Egg crate grillesHigh performance extract grilles

bull Series ECG - Egg crate grille The industry standard extract grille with a 125 mm square aluminium egg crate core giving a free area of over 90 Suitable for handling high air volumes with minimal noise generation and pressure drop

bull Series ECG45 - Egg crate grille with 45deg core A core with one set of vanes slanted at 45deg with the second set at 0deg gives this series of egg crate grille a directional throw and also a non vision property from most angles

Curved blade grilles Eyelash diffusersFunctional and cost effective terminals

bull Series CB Primarily used for supply curved blade grilles give an architectural and unconventional appearance individually adjustable blades and excellent diffusion characteristics Available in five blow patterns to suit any installation

Reinforced linear bar grillesbull Series LGFR

A specially reinforced linear bar grille designed to sustain moderate loads and impacts

The additional strength makes reinforced linear bar grilles suitable for installation at low level in corridors into sport halls or anywhere else they may be subject to impacts

Up to 300 mm high these grilles are suitable for installation into floors and can support light foot traffic

Linear bar grillesbull Series LG

A hugely versatile grille with a wealth of options and permutations

By specifying different designs linear bar grilles can be designed to suit supply or extract applications in a wide range of installations and locations

infomonodraughtcom +44 (0)1494 897700 5

Computer room floor grillesFully certified and purpose designed for raised access flooring systems

bull Series CFLG-B - Heavy grade Independently certified to heavy grade when tested to BS EN 132642001 CFLG‑B grilles are the tried and trusted floor grille design used in countless installations throughout the world

bull Series CFLG-C - Extra heavy grade Independently certified to extra heavy grade when tested to BS EN 132642001 CFLG‑C grilles are light stronger and thinner than CFLG‑B grilles Designed entirely using computer simulation software this is the next generation of computer room floor grille

Flexible linear corebull Series FLC

Designed for lay‑in trench applications flexible linear core is useful where trenches in floors need to be covered but also where access and ventilation are required

Supplied in natural finish (satin anodised blades and gloss black tube) maximum width is 300 mm length is unlimited but large units will be manufactured in sections

Spiral duct grillesbull Series RGS

Purpose designed to be fitted directly to spiral ducting with no saddle adaptation spiral duct grilles are cost‑effective units available in seven different models to suit any installation

Accessories include rear mounted volume control dampers and directional vanes

Pressed steel rangePrimarily used in domestic and commercial warm air heating applications pressed steel grilles also lend themselves well to fitting into doors or for transfer applications

bull Series PSG - Pressed steel grille Standard pressed steel grille

bull Series PSR - Pressed steel register As PSG but with a lever operated volume control damper

bull Series PSCD - Pressed steel ceiling diffuser Incorporates a cord operated volume control damper

bull Series PSFD - Pressed steel floor diffuser As PSCD but with a roller operated damper

Perforated plate grillesbull Series PPG

A perforated core held within an aluminium frame give this series of grille a laminar throw when used for supply as opposed to other types which may seek to rapidly diffuse supplied air

The 3 mm hole diameter means perforated plate grilles are tamper proof

Available with internal deflector plates to create different throw patterns if required

Laminar flow panelsbull Series LFP

Simple but effective supply diffusers laminar flow panels are frequently used in areas like laboratories and operating theatres where a zone of stable supplied air is more desirable than rapidly diffused throw

Laminar flows incorporate a side or top entry plenum box with 300 mm diameter spigot as standard Spigot mounted volume control dampers are optional for local balancing of airflow

Normally supplied in tile replacer sizes

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 6

Ceiling diffusersbull Series CD

The classic louvre faced ceiling diffuser used in countless installations worldwide Now with a shallower profile and new blade design for lightweight but still high quality unit

Monodraught ceiling diffusers are manufactured from extruded aluminium throughout we do not supply cheap pressed models

CDrsquos are held in stock in common sizes and can also be manufactured to order in any size

Linear slot diffusersbull Series LSD

An understated appearance combined with a powerful and controllable performance

Linear slot diffusers are available with 1 to 8 slots and can be fitted with internal deflector blades if being used for supply

Specially adapted plenum boxes are also available to compliment these diffusers series facilitating simple connection to ductwork and can be fitted with spigot mounted volume control dampers if required

Drum jet diffusersA high level of adjustability and long throw make these series perfect for large open plan areas

bull Series DJ-P - Premium drum jets Manufactured to order and with a range of options including volume equalising deflectors and opposed blade dampers

bull Series DJ-P - Stock drum jets Held in stock in satin anodised and RAL9010 finish stock drum jets are more cost‑effective than premium models

Linear ceiling diffusersbull Series LCD

An excellent diffuser choice where building occupant comfort is priority

Linear ceiling diffusers use a 45deg blade with an additional lip forcing supplied air along the line of the ceiling used to coanda effect By exploiting this effect a large area can be covered from a small number of diffusers

Available with one way or two way blow core set ups

Circular diffusersA 360deg throw and high capacity make circular diffusers the perfect diffuser type for large open plan areas requiring high changeover rates

bull Series LFCD - Large format circular diffuser Designed for high to very high air volumes large format circular diffusers are available in sizes from 340 mm to 1170 mm overall diameter

bull Series SFCDA - Small format circular diffuser Simply a smaller version of the series LFCD small format circulars are available in sizes from 150 mm to 350 mm nominal diameter

Perforated plate diffusersbull Series PPD

A perforated core held within a ceiling diffuser type frame

This diffuser type is intended for areas with lay ceiling systems and where a more targeted vertical throw is preferred to the spread out throw created by ceiling diffusers

Should a specific throw type be required concealed internal deflector plates can be fitted to create numerous throw patterns

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 7

Swirl diffusersHigh performance supply diffusers All in 595 mm x 595 mm overall size tiles

bull Series SWF - Fixed blade swirl diffuser Available with core diameters of 254 mm 356 mm 457 mm and 535 mm

bull Series SWA - Adjustable blade swirl diffuser Available in 12 24 and 36 slot models adjustable blade swirl diffusers have individually adjustable blades to allow throw adjustment to suit their location

Jet flow eyeball diffusersbull Series JFD

A specialist diffuser often installed in banks of multiple units

Jet flow diffusers create a long targeted throw and are designed for large open plan areas where air‑flows may need to span a large distance

The inner ball rotates freely for a fully adjustable throw

Floor swirl diffusersbull Series FSW

Combining the high performance airflow characteristics of a swirl diffuser with a specially reinforced design suitable for foot traffic

Floor swirls are suitable for any sort of raised access floor and contain a concealed and integrated swirl blade set and dirt catchment tray to prevent floor voids becoming dirty

Available in 150 mm and 200 mm diameter sizes

GRILLES AND DIFFUSERS

Louvre Systems

Series Series Name Page

WL Standard weather louvres 8

WLSS WLG Stainless galvanised steel weather louvres 8

CL Circular cast louvres 8

AL Acoustic louvres 8

STL Sand trap louvres ‑ Tested to BS EN 131812001 8

HPL High performance louvres (Class A) ‑ Tested to BS EN 130302001 8

DBL Double bank louvres 9

WL‑BDS VCD Weather louvre combination units 9

PHL Penthouse louvres 9

infomonodraughtcom +44 (0)1494 897700 8

Louvre SystemsStandard weather louvres

bull Series WL Standard weather louvres are the single bank weather louvre type used in countless installations throughout the world

Available in four formats to suit any size installation all WL types have a single bank of blades with a 45deg face for good levels of rain resistance in all but the most demanding conditions

Minimal resistance to airflow is assured with an approximate free area of 50 on all formats

Circular cast louvresbull Series CL

Small diameter external louvres designed for applications requiring a high free area external vent perfect for bathroom extractor fans etc

Manufactured from a single aluminium casting they are the rattle free and robust and are supplied factory fitted with stainless steel bird screen

CL louvres can be fixed through the face into the substrate or by using concealed holes in the neck

Stainless galvanised steel weather louvresFor installations requiring the aesthetics of galvanised steel or the corrosion resistance of stainless steel

Both series are manufactured using the latest CNC brake press technology and dedicated press tooling for the highest quality product

bull Series WLG ‑ Galvanised steel weather louvresbull Series WLSS ‑ Stainless steel weather louvres

Available in stainless steel grades 430 304 and 316 (marine specification)

Acoustic louvresbull Series AL

Series AL acoustic louvres are specialist external louvres designed primarily for areas like plant rooms or inner city car parks where noise generated by machinery or vehicles cannot be allowed to leak into the surrounding area

Using a twin part aluminium blade infilled with mineral wool Monodraught acoustic louvres offer a high resistance to rain ingress whilst also having sufficient depth to provide useful levels of sound attenuation throughout a wide range of frequencies Available in 150 mm 300 mm and 600 mm deep variants

High performance louvresbull Series HPL

An independently tested weather louvre certified by BSRIA to provide lsquoClass Arsquo rain protection when tested against BS EN 130302001 With a primary bank of standard weather louvre blades Series HPL louvres have a conventional appearance perfect for installations where high performance louvres may sit alongside standard louvres or site‑assembly louvre cladding At the rear two banks of vertical channels act to catch any water which penetrates the outer blades this then falls into a drip cill mounted at the base of the louvre and flows out through a concealed gap between the bottom blade and the frame

Sand trap louvresbull Series STL

Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 131812001 and proven to catch up to 925 of sand and dust

With two banks of interlocking vertical blades sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent

The open ended blade design prevents clogging of the louvre in contrast to the use of drain holes which are prone to becoming blocked

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 4

Grilles and Diffusers

Deflection grillesFunctional and cost effective terminals

bull Series SD - Single deflection grille A single bank of individually adjustable blades allowing throw adjustment in one plane

bull Series DD - Double deflection grille Two sets of individually adjustable blades set at 90o to each other allowing throw adjustment in two planes

bull Series FB - Fixed blade grille Identical to single deflections but the blades are factory set at either 0o 15o or 45o

Non vision grillesTransfer grilles with a sight blocking design for privacy

bull Series NV1 - Non vision grille A standard non vision grille with one bank of chevron blades

bull Series NV2 - Non vision grille with backing frame A NV1 but with a backing frame to suit doors

bull Series NV3 - Double layered grille for dark rooms Two banks of chevron blades for maximum light blocking

bull Series NV4 - Slimline surface mounted non vision grille Surface mounted grille suitable for use with fire doors in conjunction with intumescent fire blocks

Egg crate grillesHigh performance extract grilles

bull Series ECG - Egg crate grille The industry standard extract grille with a 125 mm square aluminium egg crate core giving a free area of over 90 Suitable for handling high air volumes with minimal noise generation and pressure drop

bull Series ECG45 - Egg crate grille with 45deg core A core with one set of vanes slanted at 45deg with the second set at 0deg gives this series of egg crate grille a directional throw and also a non vision property from most angles

Curved blade grilles Eyelash diffusersFunctional and cost effective terminals

bull Series CB Primarily used for supply curved blade grilles give an architectural and unconventional appearance individually adjustable blades and excellent diffusion characteristics Available in five blow patterns to suit any installation

Reinforced linear bar grillesbull Series LGFR

A specially reinforced linear bar grille designed to sustain moderate loads and impacts

The additional strength makes reinforced linear bar grilles suitable for installation at low level in corridors into sport halls or anywhere else they may be subject to impacts

Up to 300 mm high these grilles are suitable for installation into floors and can support light foot traffic

Linear bar grillesbull Series LG

A hugely versatile grille with a wealth of options and permutations

By specifying different designs linear bar grilles can be designed to suit supply or extract applications in a wide range of installations and locations

infomonodraughtcom +44 (0)1494 897700 5

Computer room floor grillesFully certified and purpose designed for raised access flooring systems

bull Series CFLG-B - Heavy grade Independently certified to heavy grade when tested to BS EN 132642001 CFLG‑B grilles are the tried and trusted floor grille design used in countless installations throughout the world

bull Series CFLG-C - Extra heavy grade Independently certified to extra heavy grade when tested to BS EN 132642001 CFLG‑C grilles are light stronger and thinner than CFLG‑B grilles Designed entirely using computer simulation software this is the next generation of computer room floor grille

Flexible linear corebull Series FLC

Designed for lay‑in trench applications flexible linear core is useful where trenches in floors need to be covered but also where access and ventilation are required

Supplied in natural finish (satin anodised blades and gloss black tube) maximum width is 300 mm length is unlimited but large units will be manufactured in sections

Spiral duct grillesbull Series RGS

Purpose designed to be fitted directly to spiral ducting with no saddle adaptation spiral duct grilles are cost‑effective units available in seven different models to suit any installation

Accessories include rear mounted volume control dampers and directional vanes

Pressed steel rangePrimarily used in domestic and commercial warm air heating applications pressed steel grilles also lend themselves well to fitting into doors or for transfer applications

bull Series PSG - Pressed steel grille Standard pressed steel grille

bull Series PSR - Pressed steel register As PSG but with a lever operated volume control damper

bull Series PSCD - Pressed steel ceiling diffuser Incorporates a cord operated volume control damper

bull Series PSFD - Pressed steel floor diffuser As PSCD but with a roller operated damper

Perforated plate grillesbull Series PPG

A perforated core held within an aluminium frame give this series of grille a laminar throw when used for supply as opposed to other types which may seek to rapidly diffuse supplied air

The 3 mm hole diameter means perforated plate grilles are tamper proof

Available with internal deflector plates to create different throw patterns if required

Laminar flow panelsbull Series LFP

Simple but effective supply diffusers laminar flow panels are frequently used in areas like laboratories and operating theatres where a zone of stable supplied air is more desirable than rapidly diffused throw

Laminar flows incorporate a side or top entry plenum box with 300 mm diameter spigot as standard Spigot mounted volume control dampers are optional for local balancing of airflow

Normally supplied in tile replacer sizes

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 6

Ceiling diffusersbull Series CD

The classic louvre faced ceiling diffuser used in countless installations worldwide Now with a shallower profile and new blade design for lightweight but still high quality unit

Monodraught ceiling diffusers are manufactured from extruded aluminium throughout we do not supply cheap pressed models

CDrsquos are held in stock in common sizes and can also be manufactured to order in any size

Linear slot diffusersbull Series LSD

An understated appearance combined with a powerful and controllable performance

Linear slot diffusers are available with 1 to 8 slots and can be fitted with internal deflector blades if being used for supply

Specially adapted plenum boxes are also available to compliment these diffusers series facilitating simple connection to ductwork and can be fitted with spigot mounted volume control dampers if required

Drum jet diffusersA high level of adjustability and long throw make these series perfect for large open plan areas

bull Series DJ-P - Premium drum jets Manufactured to order and with a range of options including volume equalising deflectors and opposed blade dampers

bull Series DJ-P - Stock drum jets Held in stock in satin anodised and RAL9010 finish stock drum jets are more cost‑effective than premium models

Linear ceiling diffusersbull Series LCD

An excellent diffuser choice where building occupant comfort is priority

Linear ceiling diffusers use a 45deg blade with an additional lip forcing supplied air along the line of the ceiling used to coanda effect By exploiting this effect a large area can be covered from a small number of diffusers

Available with one way or two way blow core set ups

Circular diffusersA 360deg throw and high capacity make circular diffusers the perfect diffuser type for large open plan areas requiring high changeover rates

bull Series LFCD - Large format circular diffuser Designed for high to very high air volumes large format circular diffusers are available in sizes from 340 mm to 1170 mm overall diameter

bull Series SFCDA - Small format circular diffuser Simply a smaller version of the series LFCD small format circulars are available in sizes from 150 mm to 350 mm nominal diameter

Perforated plate diffusersbull Series PPD

A perforated core held within a ceiling diffuser type frame

This diffuser type is intended for areas with lay ceiling systems and where a more targeted vertical throw is preferred to the spread out throw created by ceiling diffusers

Should a specific throw type be required concealed internal deflector plates can be fitted to create numerous throw patterns

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 7

Swirl diffusersHigh performance supply diffusers All in 595 mm x 595 mm overall size tiles

bull Series SWF - Fixed blade swirl diffuser Available with core diameters of 254 mm 356 mm 457 mm and 535 mm

bull Series SWA - Adjustable blade swirl diffuser Available in 12 24 and 36 slot models adjustable blade swirl diffusers have individually adjustable blades to allow throw adjustment to suit their location

Jet flow eyeball diffusersbull Series JFD

A specialist diffuser often installed in banks of multiple units

Jet flow diffusers create a long targeted throw and are designed for large open plan areas where air‑flows may need to span a large distance

The inner ball rotates freely for a fully adjustable throw

Floor swirl diffusersbull Series FSW

Combining the high performance airflow characteristics of a swirl diffuser with a specially reinforced design suitable for foot traffic

Floor swirls are suitable for any sort of raised access floor and contain a concealed and integrated swirl blade set and dirt catchment tray to prevent floor voids becoming dirty

Available in 150 mm and 200 mm diameter sizes

GRILLES AND DIFFUSERS

Louvre Systems

Series Series Name Page

WL Standard weather louvres 8

WLSS WLG Stainless galvanised steel weather louvres 8

CL Circular cast louvres 8

AL Acoustic louvres 8

STL Sand trap louvres ‑ Tested to BS EN 131812001 8

HPL High performance louvres (Class A) ‑ Tested to BS EN 130302001 8

DBL Double bank louvres 9

WL‑BDS VCD Weather louvre combination units 9

PHL Penthouse louvres 9

infomonodraughtcom +44 (0)1494 897700 8

Louvre SystemsStandard weather louvres

bull Series WL Standard weather louvres are the single bank weather louvre type used in countless installations throughout the world

Available in four formats to suit any size installation all WL types have a single bank of blades with a 45deg face for good levels of rain resistance in all but the most demanding conditions

Minimal resistance to airflow is assured with an approximate free area of 50 on all formats

Circular cast louvresbull Series CL

Small diameter external louvres designed for applications requiring a high free area external vent perfect for bathroom extractor fans etc

Manufactured from a single aluminium casting they are the rattle free and robust and are supplied factory fitted with stainless steel bird screen

CL louvres can be fixed through the face into the substrate or by using concealed holes in the neck

Stainless galvanised steel weather louvresFor installations requiring the aesthetics of galvanised steel or the corrosion resistance of stainless steel

Both series are manufactured using the latest CNC brake press technology and dedicated press tooling for the highest quality product

bull Series WLG ‑ Galvanised steel weather louvresbull Series WLSS ‑ Stainless steel weather louvres

Available in stainless steel grades 430 304 and 316 (marine specification)

Acoustic louvresbull Series AL

Series AL acoustic louvres are specialist external louvres designed primarily for areas like plant rooms or inner city car parks where noise generated by machinery or vehicles cannot be allowed to leak into the surrounding area

Using a twin part aluminium blade infilled with mineral wool Monodraught acoustic louvres offer a high resistance to rain ingress whilst also having sufficient depth to provide useful levels of sound attenuation throughout a wide range of frequencies Available in 150 mm 300 mm and 600 mm deep variants

High performance louvresbull Series HPL

An independently tested weather louvre certified by BSRIA to provide lsquoClass Arsquo rain protection when tested against BS EN 130302001 With a primary bank of standard weather louvre blades Series HPL louvres have a conventional appearance perfect for installations where high performance louvres may sit alongside standard louvres or site‑assembly louvre cladding At the rear two banks of vertical channels act to catch any water which penetrates the outer blades this then falls into a drip cill mounted at the base of the louvre and flows out through a concealed gap between the bottom blade and the frame

Sand trap louvresbull Series STL

Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 131812001 and proven to catch up to 925 of sand and dust

With two banks of interlocking vertical blades sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent

The open ended blade design prevents clogging of the louvre in contrast to the use of drain holes which are prone to becoming blocked

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 5

Computer room floor grillesFully certified and purpose designed for raised access flooring systems

bull Series CFLG-B - Heavy grade Independently certified to heavy grade when tested to BS EN 132642001 CFLG‑B grilles are the tried and trusted floor grille design used in countless installations throughout the world

bull Series CFLG-C - Extra heavy grade Independently certified to extra heavy grade when tested to BS EN 132642001 CFLG‑C grilles are light stronger and thinner than CFLG‑B grilles Designed entirely using computer simulation software this is the next generation of computer room floor grille

Flexible linear corebull Series FLC

Designed for lay‑in trench applications flexible linear core is useful where trenches in floors need to be covered but also where access and ventilation are required

Supplied in natural finish (satin anodised blades and gloss black tube) maximum width is 300 mm length is unlimited but large units will be manufactured in sections

Spiral duct grillesbull Series RGS

Purpose designed to be fitted directly to spiral ducting with no saddle adaptation spiral duct grilles are cost‑effective units available in seven different models to suit any installation

Accessories include rear mounted volume control dampers and directional vanes

Pressed steel rangePrimarily used in domestic and commercial warm air heating applications pressed steel grilles also lend themselves well to fitting into doors or for transfer applications

bull Series PSG - Pressed steel grille Standard pressed steel grille

bull Series PSR - Pressed steel register As PSG but with a lever operated volume control damper

bull Series PSCD - Pressed steel ceiling diffuser Incorporates a cord operated volume control damper

bull Series PSFD - Pressed steel floor diffuser As PSCD but with a roller operated damper

Perforated plate grillesbull Series PPG

A perforated core held within an aluminium frame give this series of grille a laminar throw when used for supply as opposed to other types which may seek to rapidly diffuse supplied air

The 3 mm hole diameter means perforated plate grilles are tamper proof

Available with internal deflector plates to create different throw patterns if required

Laminar flow panelsbull Series LFP

Simple but effective supply diffusers laminar flow panels are frequently used in areas like laboratories and operating theatres where a zone of stable supplied air is more desirable than rapidly diffused throw

Laminar flows incorporate a side or top entry plenum box with 300 mm diameter spigot as standard Spigot mounted volume control dampers are optional for local balancing of airflow

Normally supplied in tile replacer sizes

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 6

Ceiling diffusersbull Series CD

The classic louvre faced ceiling diffuser used in countless installations worldwide Now with a shallower profile and new blade design for lightweight but still high quality unit

Monodraught ceiling diffusers are manufactured from extruded aluminium throughout we do not supply cheap pressed models

CDrsquos are held in stock in common sizes and can also be manufactured to order in any size

Linear slot diffusersbull Series LSD

An understated appearance combined with a powerful and controllable performance

Linear slot diffusers are available with 1 to 8 slots and can be fitted with internal deflector blades if being used for supply

Specially adapted plenum boxes are also available to compliment these diffusers series facilitating simple connection to ductwork and can be fitted with spigot mounted volume control dampers if required

Drum jet diffusersA high level of adjustability and long throw make these series perfect for large open plan areas

bull Series DJ-P - Premium drum jets Manufactured to order and with a range of options including volume equalising deflectors and opposed blade dampers

bull Series DJ-P - Stock drum jets Held in stock in satin anodised and RAL9010 finish stock drum jets are more cost‑effective than premium models

Linear ceiling diffusersbull Series LCD

An excellent diffuser choice where building occupant comfort is priority

Linear ceiling diffusers use a 45deg blade with an additional lip forcing supplied air along the line of the ceiling used to coanda effect By exploiting this effect a large area can be covered from a small number of diffusers

Available with one way or two way blow core set ups

Circular diffusersA 360deg throw and high capacity make circular diffusers the perfect diffuser type for large open plan areas requiring high changeover rates

bull Series LFCD - Large format circular diffuser Designed for high to very high air volumes large format circular diffusers are available in sizes from 340 mm to 1170 mm overall diameter

bull Series SFCDA - Small format circular diffuser Simply a smaller version of the series LFCD small format circulars are available in sizes from 150 mm to 350 mm nominal diameter

Perforated plate diffusersbull Series PPD

A perforated core held within a ceiling diffuser type frame

This diffuser type is intended for areas with lay ceiling systems and where a more targeted vertical throw is preferred to the spread out throw created by ceiling diffusers

Should a specific throw type be required concealed internal deflector plates can be fitted to create numerous throw patterns

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 7

Swirl diffusersHigh performance supply diffusers All in 595 mm x 595 mm overall size tiles

bull Series SWF - Fixed blade swirl diffuser Available with core diameters of 254 mm 356 mm 457 mm and 535 mm

bull Series SWA - Adjustable blade swirl diffuser Available in 12 24 and 36 slot models adjustable blade swirl diffusers have individually adjustable blades to allow throw adjustment to suit their location

Jet flow eyeball diffusersbull Series JFD

A specialist diffuser often installed in banks of multiple units

Jet flow diffusers create a long targeted throw and are designed for large open plan areas where air‑flows may need to span a large distance

The inner ball rotates freely for a fully adjustable throw

Floor swirl diffusersbull Series FSW

Combining the high performance airflow characteristics of a swirl diffuser with a specially reinforced design suitable for foot traffic

Floor swirls are suitable for any sort of raised access floor and contain a concealed and integrated swirl blade set and dirt catchment tray to prevent floor voids becoming dirty

Available in 150 mm and 200 mm diameter sizes

GRILLES AND DIFFUSERS

Louvre Systems

Series Series Name Page

WL Standard weather louvres 8

WLSS WLG Stainless galvanised steel weather louvres 8

CL Circular cast louvres 8

AL Acoustic louvres 8

STL Sand trap louvres ‑ Tested to BS EN 131812001 8

HPL High performance louvres (Class A) ‑ Tested to BS EN 130302001 8

DBL Double bank louvres 9

WL‑BDS VCD Weather louvre combination units 9

PHL Penthouse louvres 9

infomonodraughtcom +44 (0)1494 897700 8

Louvre SystemsStandard weather louvres

bull Series WL Standard weather louvres are the single bank weather louvre type used in countless installations throughout the world

Available in four formats to suit any size installation all WL types have a single bank of blades with a 45deg face for good levels of rain resistance in all but the most demanding conditions

Minimal resistance to airflow is assured with an approximate free area of 50 on all formats

Circular cast louvresbull Series CL

Small diameter external louvres designed for applications requiring a high free area external vent perfect for bathroom extractor fans etc

Manufactured from a single aluminium casting they are the rattle free and robust and are supplied factory fitted with stainless steel bird screen

CL louvres can be fixed through the face into the substrate or by using concealed holes in the neck

Stainless galvanised steel weather louvresFor installations requiring the aesthetics of galvanised steel or the corrosion resistance of stainless steel

Both series are manufactured using the latest CNC brake press technology and dedicated press tooling for the highest quality product

bull Series WLG ‑ Galvanised steel weather louvresbull Series WLSS ‑ Stainless steel weather louvres

Available in stainless steel grades 430 304 and 316 (marine specification)

Acoustic louvresbull Series AL

Series AL acoustic louvres are specialist external louvres designed primarily for areas like plant rooms or inner city car parks where noise generated by machinery or vehicles cannot be allowed to leak into the surrounding area

Using a twin part aluminium blade infilled with mineral wool Monodraught acoustic louvres offer a high resistance to rain ingress whilst also having sufficient depth to provide useful levels of sound attenuation throughout a wide range of frequencies Available in 150 mm 300 mm and 600 mm deep variants

High performance louvresbull Series HPL

An independently tested weather louvre certified by BSRIA to provide lsquoClass Arsquo rain protection when tested against BS EN 130302001 With a primary bank of standard weather louvre blades Series HPL louvres have a conventional appearance perfect for installations where high performance louvres may sit alongside standard louvres or site‑assembly louvre cladding At the rear two banks of vertical channels act to catch any water which penetrates the outer blades this then falls into a drip cill mounted at the base of the louvre and flows out through a concealed gap between the bottom blade and the frame

Sand trap louvresbull Series STL

Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 131812001 and proven to catch up to 925 of sand and dust

With two banks of interlocking vertical blades sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent

The open ended blade design prevents clogging of the louvre in contrast to the use of drain holes which are prone to becoming blocked

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 6

Ceiling diffusersbull Series CD

The classic louvre faced ceiling diffuser used in countless installations worldwide Now with a shallower profile and new blade design for lightweight but still high quality unit

Monodraught ceiling diffusers are manufactured from extruded aluminium throughout we do not supply cheap pressed models

CDrsquos are held in stock in common sizes and can also be manufactured to order in any size

Linear slot diffusersbull Series LSD

An understated appearance combined with a powerful and controllable performance

Linear slot diffusers are available with 1 to 8 slots and can be fitted with internal deflector blades if being used for supply

Specially adapted plenum boxes are also available to compliment these diffusers series facilitating simple connection to ductwork and can be fitted with spigot mounted volume control dampers if required

Drum jet diffusersA high level of adjustability and long throw make these series perfect for large open plan areas

bull Series DJ-P - Premium drum jets Manufactured to order and with a range of options including volume equalising deflectors and opposed blade dampers

bull Series DJ-P - Stock drum jets Held in stock in satin anodised and RAL9010 finish stock drum jets are more cost‑effective than premium models

Linear ceiling diffusersbull Series LCD

An excellent diffuser choice where building occupant comfort is priority

Linear ceiling diffusers use a 45deg blade with an additional lip forcing supplied air along the line of the ceiling used to coanda effect By exploiting this effect a large area can be covered from a small number of diffusers

Available with one way or two way blow core set ups

Circular diffusersA 360deg throw and high capacity make circular diffusers the perfect diffuser type for large open plan areas requiring high changeover rates

bull Series LFCD - Large format circular diffuser Designed for high to very high air volumes large format circular diffusers are available in sizes from 340 mm to 1170 mm overall diameter

bull Series SFCDA - Small format circular diffuser Simply a smaller version of the series LFCD small format circulars are available in sizes from 150 mm to 350 mm nominal diameter

Perforated plate diffusersbull Series PPD

A perforated core held within a ceiling diffuser type frame

This diffuser type is intended for areas with lay ceiling systems and where a more targeted vertical throw is preferred to the spread out throw created by ceiling diffusers

Should a specific throw type be required concealed internal deflector plates can be fitted to create numerous throw patterns

GRILLES AND DIFFUSERS

infomonodraughtcom +44 (0)1494 897700 7

Swirl diffusersHigh performance supply diffusers All in 595 mm x 595 mm overall size tiles

bull Series SWF - Fixed blade swirl diffuser Available with core diameters of 254 mm 356 mm 457 mm and 535 mm

bull Series SWA - Adjustable blade swirl diffuser Available in 12 24 and 36 slot models adjustable blade swirl diffusers have individually adjustable blades to allow throw adjustment to suit their location

Jet flow eyeball diffusersbull Series JFD

A specialist diffuser often installed in banks of multiple units

Jet flow diffusers create a long targeted throw and are designed for large open plan areas where air‑flows may need to span a large distance

The inner ball rotates freely for a fully adjustable throw

Floor swirl diffusersbull Series FSW

Combining the high performance airflow characteristics of a swirl diffuser with a specially reinforced design suitable for foot traffic

Floor swirls are suitable for any sort of raised access floor and contain a concealed and integrated swirl blade set and dirt catchment tray to prevent floor voids becoming dirty

Available in 150 mm and 200 mm diameter sizes

GRILLES AND DIFFUSERS

Louvre Systems

Series Series Name Page

WL Standard weather louvres 8

WLSS WLG Stainless galvanised steel weather louvres 8

CL Circular cast louvres 8

AL Acoustic louvres 8

STL Sand trap louvres ‑ Tested to BS EN 131812001 8

HPL High performance louvres (Class A) ‑ Tested to BS EN 130302001 8

DBL Double bank louvres 9

WL‑BDS VCD Weather louvre combination units 9

PHL Penthouse louvres 9

infomonodraughtcom +44 (0)1494 897700 8

Louvre SystemsStandard weather louvres

bull Series WL Standard weather louvres are the single bank weather louvre type used in countless installations throughout the world

Available in four formats to suit any size installation all WL types have a single bank of blades with a 45deg face for good levels of rain resistance in all but the most demanding conditions

Minimal resistance to airflow is assured with an approximate free area of 50 on all formats

Circular cast louvresbull Series CL

Small diameter external louvres designed for applications requiring a high free area external vent perfect for bathroom extractor fans etc

Manufactured from a single aluminium casting they are the rattle free and robust and are supplied factory fitted with stainless steel bird screen

CL louvres can be fixed through the face into the substrate or by using concealed holes in the neck

Stainless galvanised steel weather louvresFor installations requiring the aesthetics of galvanised steel or the corrosion resistance of stainless steel

Both series are manufactured using the latest CNC brake press technology and dedicated press tooling for the highest quality product

bull Series WLG ‑ Galvanised steel weather louvresbull Series WLSS ‑ Stainless steel weather louvres

Available in stainless steel grades 430 304 and 316 (marine specification)

Acoustic louvresbull Series AL

Series AL acoustic louvres are specialist external louvres designed primarily for areas like plant rooms or inner city car parks where noise generated by machinery or vehicles cannot be allowed to leak into the surrounding area

Using a twin part aluminium blade infilled with mineral wool Monodraught acoustic louvres offer a high resistance to rain ingress whilst also having sufficient depth to provide useful levels of sound attenuation throughout a wide range of frequencies Available in 150 mm 300 mm and 600 mm deep variants

High performance louvresbull Series HPL

An independently tested weather louvre certified by BSRIA to provide lsquoClass Arsquo rain protection when tested against BS EN 130302001 With a primary bank of standard weather louvre blades Series HPL louvres have a conventional appearance perfect for installations where high performance louvres may sit alongside standard louvres or site‑assembly louvre cladding At the rear two banks of vertical channels act to catch any water which penetrates the outer blades this then falls into a drip cill mounted at the base of the louvre and flows out through a concealed gap between the bottom blade and the frame

Sand trap louvresbull Series STL

Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 131812001 and proven to catch up to 925 of sand and dust

With two banks of interlocking vertical blades sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent

The open ended blade design prevents clogging of the louvre in contrast to the use of drain holes which are prone to becoming blocked

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 7

Swirl diffusersHigh performance supply diffusers All in 595 mm x 595 mm overall size tiles

bull Series SWF - Fixed blade swirl diffuser Available with core diameters of 254 mm 356 mm 457 mm and 535 mm

bull Series SWA - Adjustable blade swirl diffuser Available in 12 24 and 36 slot models adjustable blade swirl diffusers have individually adjustable blades to allow throw adjustment to suit their location

Jet flow eyeball diffusersbull Series JFD

A specialist diffuser often installed in banks of multiple units

Jet flow diffusers create a long targeted throw and are designed for large open plan areas where air‑flows may need to span a large distance

The inner ball rotates freely for a fully adjustable throw

Floor swirl diffusersbull Series FSW

Combining the high performance airflow characteristics of a swirl diffuser with a specially reinforced design suitable for foot traffic

Floor swirls are suitable for any sort of raised access floor and contain a concealed and integrated swirl blade set and dirt catchment tray to prevent floor voids becoming dirty

Available in 150 mm and 200 mm diameter sizes

GRILLES AND DIFFUSERS

Louvre Systems

Series Series Name Page

WL Standard weather louvres 8

WLSS WLG Stainless galvanised steel weather louvres 8

CL Circular cast louvres 8

AL Acoustic louvres 8

STL Sand trap louvres ‑ Tested to BS EN 131812001 8

HPL High performance louvres (Class A) ‑ Tested to BS EN 130302001 8

DBL Double bank louvres 9

WL‑BDS VCD Weather louvre combination units 9

PHL Penthouse louvres 9

infomonodraughtcom +44 (0)1494 897700 8

Louvre SystemsStandard weather louvres

bull Series WL Standard weather louvres are the single bank weather louvre type used in countless installations throughout the world

Available in four formats to suit any size installation all WL types have a single bank of blades with a 45deg face for good levels of rain resistance in all but the most demanding conditions

Minimal resistance to airflow is assured with an approximate free area of 50 on all formats

Circular cast louvresbull Series CL

Small diameter external louvres designed for applications requiring a high free area external vent perfect for bathroom extractor fans etc

Manufactured from a single aluminium casting they are the rattle free and robust and are supplied factory fitted with stainless steel bird screen

CL louvres can be fixed through the face into the substrate or by using concealed holes in the neck

Stainless galvanised steel weather louvresFor installations requiring the aesthetics of galvanised steel or the corrosion resistance of stainless steel

Both series are manufactured using the latest CNC brake press technology and dedicated press tooling for the highest quality product

bull Series WLG ‑ Galvanised steel weather louvresbull Series WLSS ‑ Stainless steel weather louvres

Available in stainless steel grades 430 304 and 316 (marine specification)

Acoustic louvresbull Series AL

Series AL acoustic louvres are specialist external louvres designed primarily for areas like plant rooms or inner city car parks where noise generated by machinery or vehicles cannot be allowed to leak into the surrounding area

Using a twin part aluminium blade infilled with mineral wool Monodraught acoustic louvres offer a high resistance to rain ingress whilst also having sufficient depth to provide useful levels of sound attenuation throughout a wide range of frequencies Available in 150 mm 300 mm and 600 mm deep variants

High performance louvresbull Series HPL

An independently tested weather louvre certified by BSRIA to provide lsquoClass Arsquo rain protection when tested against BS EN 130302001 With a primary bank of standard weather louvre blades Series HPL louvres have a conventional appearance perfect for installations where high performance louvres may sit alongside standard louvres or site‑assembly louvre cladding At the rear two banks of vertical channels act to catch any water which penetrates the outer blades this then falls into a drip cill mounted at the base of the louvre and flows out through a concealed gap between the bottom blade and the frame

Sand trap louvresbull Series STL

Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 131812001 and proven to catch up to 925 of sand and dust

With two banks of interlocking vertical blades sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent

The open ended blade design prevents clogging of the louvre in contrast to the use of drain holes which are prone to becoming blocked

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 8

Louvre SystemsStandard weather louvres

bull Series WL Standard weather louvres are the single bank weather louvre type used in countless installations throughout the world

Available in four formats to suit any size installation all WL types have a single bank of blades with a 45deg face for good levels of rain resistance in all but the most demanding conditions

Minimal resistance to airflow is assured with an approximate free area of 50 on all formats

Circular cast louvresbull Series CL

Small diameter external louvres designed for applications requiring a high free area external vent perfect for bathroom extractor fans etc

Manufactured from a single aluminium casting they are the rattle free and robust and are supplied factory fitted with stainless steel bird screen

CL louvres can be fixed through the face into the substrate or by using concealed holes in the neck

Stainless galvanised steel weather louvresFor installations requiring the aesthetics of galvanised steel or the corrosion resistance of stainless steel

Both series are manufactured using the latest CNC brake press technology and dedicated press tooling for the highest quality product

bull Series WLG ‑ Galvanised steel weather louvresbull Series WLSS ‑ Stainless steel weather louvres

Available in stainless steel grades 430 304 and 316 (marine specification)

Acoustic louvresbull Series AL

Series AL acoustic louvres are specialist external louvres designed primarily for areas like plant rooms or inner city car parks where noise generated by machinery or vehicles cannot be allowed to leak into the surrounding area

Using a twin part aluminium blade infilled with mineral wool Monodraught acoustic louvres offer a high resistance to rain ingress whilst also having sufficient depth to provide useful levels of sound attenuation throughout a wide range of frequencies Available in 150 mm 300 mm and 600 mm deep variants

High performance louvresbull Series HPL

An independently tested weather louvre certified by BSRIA to provide lsquoClass Arsquo rain protection when tested against BS EN 130302001 With a primary bank of standard weather louvre blades Series HPL louvres have a conventional appearance perfect for installations where high performance louvres may sit alongside standard louvres or site‑assembly louvre cladding At the rear two banks of vertical channels act to catch any water which penetrates the outer blades this then falls into a drip cill mounted at the base of the louvre and flows out through a concealed gap between the bottom blade and the frame

Sand trap louvresbull Series STL

Series STL sand trap louvres are specialist louvres which have been independently tested by BSRIA to BS EN 131812001 and proven to catch up to 925 of sand and dust

With two banks of interlocking vertical blades sand trap louvres are designed to be the primary filters for air intakes in areas where airborne sand and dust are prevalent

The open ended blade design prevents clogging of the louvre in contrast to the use of drain holes which are prone to becoming blocked

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 9

Double bank louvresbull Series DBL

Series DBL double bank louvres are a specialist louvre system making use of a chevron type blade designed to provide elevated levels of rain rejection whilst also providing a non vision quality by blocking direct line of sight through the louvre Making use of a new single piece blade extrusion DBL louvres are among the lightest louvres available in their class and their slimline construction is just 100 mm deep

Penthouse louvresbull Series PHL

Also known as turret louvres penthouse louvres are designed for mounting and are frequently employed in natural ventilation applications Penthouse louvres are often used in conjunction with other Monodraught products like insulated volume control dampers transition ducts and internal grilles to form and integrated natural ventilation assembly performing air intake volume control and air diffusion in one complete package Available in standard and high performance Class A rain rejection models

Combination unitsCombination units are an assembly of products rather than a stand alone product line

Select from any Monodraught louvre system and any Monodraught volume control damper model and we can factory assemble them to create an ready to install integrated unit performing both louvre and volume control functions

The main advantage of combination units is that the two components are factory assembled to make an easy to install assembly

Our in house design team will ensure your selected components work together perfectly with you only needing to tell us the hole size and what components you require

LOUVRE SYSTEMS

DampersSeries Series Name Recommended Use Page

S100 Fire dampers ‑ CE marked Fire spread prevention 10

S900 Steel volume control and shut off dampers Volume control and shut off 10

S900 SBD Steel circular single blade dampers Volume control 10

S900 RSBD Steel rectangular single blade dampers Volume control 10

LF uPVC‑VCD Large format uPVC volume control dampers Volume control and shut off 10

SF uPVC‑VCD Small format uPVC volume control dampers Volume control 10

VCD Aluminium volume control dampers Volume control and shut off 11

BDS Back draught Non‑return dampers maintaining uni‑directional airflow 11

OBD Opposed blade dampers Volume control 11

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 10

DampersSeries 100 Fire dampers - CE markedA fully CE marked fire damper currently available to suit the following installations

bull HEVAC frame in mansonry wallbull Plate frame in drywall partitionbull Plate frame in mansonry wall

Constructed from galvanised steel as standard with stainless steel blades andor case available A range of options are available including electromagnets for remote operation and microswitches for damper position indication

Small format uPCV-VCDbull Series SF uPVC-VCD

A lightweight corrosion resistant volume control damper designed to be used in smaller size ductwork

The highly corrosion resistant construction makes this series of damper perfect for any application in a potentially corrosive atmosphere swimming pools or coastal regions for instance It also keeps required maintenance to a minimum

The frame and blades make use of flexible co‑extruded blade‑tip and side seals ensuring excellent levels of shut off Blades are driven by a set of fully protected gears hidden outside the airstream to avoid any debris contamination

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel volume control and shut off dampersMulti leaf opposed blade volume control dampers

Available in volume control and shut off variants with the shut off damper having blade edge and blade side seals for reduced leakage

S900 dampers are designed for units up to 1 m x 1 m above this size Monodraught VCD aluminium volume control dampers are more suitable

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel circular single blade dampers

bull Series SBD Intended for use in small diameter rigid spiral ducting or in plenum box spigots S900 single blade VCDs also known as flap dampers are simple cost‑effective balancing volume control dampers

Manufactured from galvanised steel S900SBDs are fitted with a galvanised steel locking quadrant as standard but are available with a manual plastic handle extended spindle or motorised with an electronic actuator if required

Large format uPCV-VCDbull Series LF uPVC-VCD

An exceptionally low leakage volume control damper designed for natural ventilation applications in the next generation of energy efficient buildings

Part L of building regulations demands a leakage of no more than 10m3hrm2 at 50 Pa LF uPVC volume control dampers have been independently tested and confirmed to have a leakage of just 285 m3hrm2 over 70 less than required by building regulations

The plastic construction also serves to make the whole damper a thermal break with a calculated U value of just 12 Wm2K and also imparts an extremely high level of corrosion resistance

Available with a range of control options including manual handles and a full range of factory fitted actuators

Series 900 Steel rectangular single blade dampers

bull Series 900 RSBD Purpose designed to suit small scale plastic ductwork which is increasingly being used in new build homes and residential developments S900 RSBDrsquos allow the adjustment of airflow locally to each terminal Constructed from galvanised steel as standard with stainless steel optional in grades 430 304 and 316 (marine spec) Supplied as standard with an ergonomic and lockable plastic handle

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

infomonodraughtcom +44 (0)1494 897700 11

Aluminium volume control dampersbull Series VCD

An excellent and beautifully simple volume control damper Monodraught VCDs have an incredibly low torque operation enabling dampers of several square metres to be driven from a single motor or manual control point

The linkage is contained entirely outside of the airstream to ensure long life and minimal maintenance Normally intended for balancing purposes Monodraught VCDs can also be equipped with additional seals to create a low leakage variant and high temperature parts can also be specified enabling use in environments where temperatures reach up to 300 degC

Available with a range of control options including manual handles and a full range of factory fitted actuators

Opposed blade damperbull Series OBD

Not usually sold as a standalone product opposed blade dampers are an option for grilles and diffusers and provide the facility to balance air locally rather than relying on volume control dampers further into ductwork

Adjustable using a flathead screwdriver or square ended key

Back draught Non-return dampersbull Series BDS

Back draught shutters also known as non‑return dampers are passive devices which only permit airflow in one direction

Like Monodraught VCDs they can be made in large sizes and the aluminium construction ensures light weight and high resistance to corrosion

Options include linked and weighted blades which for larger sizes andor high velocities are highly recommended

DAMPERS

Ancillaries

Series Series Name Recommended Use Page

IFB Intumescent fire dampers Fire spread prevention 12

AV Air valves Extract and supply 12

PB Plenum boxes Connection of terminal to ductwork 12

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

DE

SIGNED

amp

MANU

FACTURED

IN BRI

TAIN

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

12

AncillariesIntumescent fire dampersDesigned to expand and fill their aperture with an incombustible mass within minutes of exposure to elevated temperatures in order to prevent the passage of hot smoke and fire

bull IFB60 - 60 minute rated intumescent fire damper Certified to provide 60 minutes of protection vertical applications only

bull IFB60 - 120 minute rated intumescent fire damper Certified to provide 120 minutes of protection and suitable for vertical applications and horizontal applications

Air ValvesCommonly used in domestic applications and suitable for areas like bathrooms and kitchens air valves are available in the following models

bull GEV - Standard extract air valvebull GSV - Standard supply air valvebull GEFV - CE marked fire rated extract air valvebull PAV - Plastic air valve

Plenum Boxesbull Series PB

Plenum boxes are one of the basic components of any ventilation system providing the link between ductwork and terminal

Monodraught can supply a full range of plenum boxes with a range of options including single or multiple spigots internal acoustic insulation and internal matt black painting

This brochure is designed to give a brief overview of the range of products available from Monodraught

For more detailed information including dimensions options and available finishes please go to our website wwwmonodraughtcom where product specific PDFs are available to download

We are supporting Air-Precision range withbull pound1 million of fast moving stockbull Bespoke manufacture with any standard RAL colour within 5 daysbull 15 dedicated expertsbull Designed with industry leading softwarebull Belimo actuators used throughout bull AA5 anodisation (ISO7599) utilisedbull Market leading quality fully supported by a 10 year guarantee

Monodraught products are designed and manufactured in Great Britain

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Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd

Halifax House High WycombeBuckinghamshire HP12 3SE

+44 01494 897700

+44 01494 532465

wwwmonodraughtcom

infomonodraughtcom

Monodraught Ltd

MonodraughtLtd

Monodraught Ltd