pvc-utechnical

Pipes and Fittings

Imperial and Metric Systems

Technical Data and

Dimensions

At the forefront of development andmanufacture of thermoplastic pipework for overhalf a century, Durapipe products are widelyused in Utilities, Industrial and BuildingServices sectors around the world.

• Fully matched system

• Wide range of manualand actuated valves

• Comprehensive technicalsupport

• Fully approved

... don’t take a chancewith any other brand

Complete systemsolutions

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 2794502

email: [email protected] web: www.durapipe.co.uk 3

Index

Company Profile .........................................................................2Introduction ............................................................................4-5The System .............................................................................6-7

Index to PVC-U Imperial Fittings...............................................8-9Pipes ........................................................................................10Sockets .....................................................................................11‘O’ ring sockets ..........................................................................11Repair sockets ...........................................................................11Reducing sockets .......................................................................11Reducing bushes plain ...............................................................12Elbows 45° plain .......................................................................12Elbows 90° plain .......................................................................12Tees..........................................................................................13Bends 90°.................................................................................13Bends 45°.................................................................................13Bends 221⁄2° .............................................................................14Saddles.....................................................................................14‘Y’ pieces ..................................................................................14Caps.........................................................................................14Socket unions ............................................................................15Socket union plain adaptors ........................................................15Socket union threaded adaptors...................................................15Socket union nuts ......................................................................15Imperial/metric socket adaptors ...................................................16Sockets plain/BSP threaded ........................................................16Reducing bushes plain/BSP threaded...........................................16Barrel nipples ............................................................................16Hexagon nipples plain/BSP threaded ...........................................17Adaptors male/female .................................................................17Adaptors female/male .................................................................17Composite unions female brass ...................................................18Composite unions male brass ......................................................18Hose adaptors ......................................................................18-19Tank connectors.........................................................................19Elbows 90° plain/BSP threaded ..................................................19Sockets BSP threaded ................................................................19Hexagon nipples BSP threaded ...................................................20Back nuts..................................................................................20Plugs ........................................................................................20Caps.........................................................................................20Elbows 90° BSP threaded ..........................................................21Reducing bushes BSP threaded...................................................21Elbows 45° BSP threaded ..........................................................21Tees 90° ...................................................................................21Unions......................................................................................22Reducing bushes BSP threaded/reduced spigot socket ..................22Reducers...................................................................................22Flanges full face.........................................................................23Flanges stub serrated ................................................................24Flanges blanking drilled..............................................................24Flanges blanking undrilled ..........................................................25‘O’ rings for socket unions ...........................................................25Gaskets flat ...............................................................................25Gaskets full face ........................................................................26Backing rings.............................................................................27Valve support plates ...................................................................27Cobra pipe clips.........................................................................28Saddle clips...............................................................................28GOEMA pipe clips ......................................................................28Durapipe solvent cement and MEK cleaner ...................................28VK double union ball valves ........................................................29VX double union ball valves ........................................................29SK single union ball valves..........................................................29ML/MT/MC Multiport ball valves ..................................................30VT 3-way valves ........................................................................30SR single union ball check valves ................................................31VA air release valves...................................................................31

UV/UT sediment strainers ...........................................................32PR pressure relief valves .............................................................32VM diaphragm valves .................................................................33FK butterfly valves .....................................................................33

Index to PVC-U Metric Fittings..............................................34-35Pipe..........................................................................................36Sockets .....................................................................................36Reducing bushes........................................................................37Reducers...................................................................................38Elbows 45° ...............................................................................38Elbows 90° ...............................................................................39Bends 90°.................................................................................39Tees 90° equal...........................................................................39Y’ pieces ...................................................................................40Caps.........................................................................................40Socket unions ............................................................................40Cross ........................................................................................41Tees 90° reducing ......................................................................41Imperial/metric socket adaptors ...................................................41Female threaded adaptors...........................................................42Male threaded adaptors ..............................................................42Female composite unions............................................................43Male composite unions ...............................................................43Saddle clamps ...........................................................................43Tank connectors.........................................................................43Hose adaptors ...........................................................................44Stub flanges serrated face ...........................................................44Flanges full face.........................................................................45Valve support plates ...................................................................45Backing rings.............................................................................45Flat gaskets/stub flanges .............................................................46O rings for socket unions ............................................................46Cobra pipe clips.........................................................................46Durapipe solvent cement and MEK cleaner ...................................46VK double union ball valves ........................................................47VX double union ball valves ........................................................47SK single union ball valves..........................................................47VT 3-way valves ........................................................................47SR single union ball check valves ................................................48VA air release valves...................................................................48UV/UT sediment strainers ...........................................................48PR pressure relief valves .............................................................49VM diaphragm valves .................................................................49FK butterfly valves .....................................................................49

Durapipe PVC-U Design and Installation Guide............................50Flow Nomogram ........................................................................51Design of Supports.....................................................................52Calculating Expansion and Contraction .........................................53

Additional Important Information................................................56

Durapipe PVC-U Jointing Guide (up to 8"/225mm) ......................57

Durapipe PVC-U Jointing Guide (for 10"/250mm and 12"/315mm)..............................................59Notes........................................................................................62Drying Times .............................................................................62Branch Connections ...................................................................63The Use of Bushes and Reducers ................................................64Threaded Connections ................................................................64

General Information ..................................................................66

Imperial/Metric Pipe Dimensional Comparison Tables ...................67

Product Specification (Imperial) .................................................68

Product Specification (Metric) ....................................................69

Actuated valves ........................................................................70

Other Durapipe UK pipework systems ........................................71

page page

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 2794504

IntroductionDurapipe UK offers precision matched Durapipe PVC-U pipeworkcomprising pipes, fittings and valves, most of which are designed tobe joined by solvent welding, together with associated accessories.Products are available from size 3/8" to 12" and 12mm to 315mmoutside diameter.

QualityDurapipe UK’s commitment to quality isreflected by our operation of an independentlyassessed quality management systemregistered under BS EN ISO 9001.As part of this Quality System Durapipe PVC-U is subjected to arigorous programme of checks and tests including:Dimensional Control ChecksSurface Finish ChecksLong Term Hydrostatic TestsShort Term Hydrostatic TestsPipe Impact TestsHeat Reversion

In addition to quality control tests, long term investigationsincluding long term regression analysis and water quality tests havebeen carried out, to ensure system integrity throughout theoperational life of the product.

EnvironmentWe also operate an environmental management system that hasbeen successfully assessed against the BS EN ISO 14001environmental management standard.

MaterialsMaterials used for manufacture of pipes, fittings and valves areselected for their toxicological properties and suitability forconveyance of potable water as required by the appropriateinternational authorities.

ColourDurapipe PVC-U products are a mid-grey colour, generally inaccordance with BS5252, colour ref. 16 A 11.

Auto CAD drawingsTwo dimensional drawings of Imperial products contained in thisbrochure are available on our website www.durapipe.co.uk Available in Fastrack format.

ApplicationsThe following is a list of applications for Durapipe PVC-U pipeworksystems:• Acids• Alkalis• Treated Effluent• Untreated Effluent• Cooling Water• Potable Water• Flocculants• General Chemical Dosing

Major usersThe following companies are all major users of Durapipe PVC-Upipework systems:• Biwater Treatment• Brimar Plastics • Britannia Zinc• Boots• Courtaulds• Dewey Waters• Ford Motor Company• ICL• Memcor• Nestlé Rowntree• npower• Pennine Foods• PowerGen• PWT• Railtrack• Rolls-Royce• Royal Doulton• Severn Trent Water• Statham Engineering• Thurnall Engineering Plastics• Wessex Water• Yorkshire Water

ApprovalsDurapipe PVC-U Imperial series fittings are covered by KitemarkLicence No. KM05324 to BS 4346:Part 1.Durapipe PVC-U Imperial series pipes and fittings are UK WaterRegulations Advisory Scheme approved for conveying potable water,certificate number 0112065.Durapipe PVC-U materials are also UK Water Regulations AdvisoryScheme approved and are listed under 0201506 and 0201512. Durapipe PVC-U solvent cement is covered by Kitemark LicenceNo. KM6218 to BS 4346: Part 3, and is UK Water RegulationsAdvisory Scheme approved under 0201515.Durapipe PVC-U imperial pipe is manufactured generally inaccordance with BS 3505. Threaded fittings conform to the requirements of BS 21/DIN2999/ISO 7.Socket dimensions of fittings for solvent welding comply with ISO 727-2

Certificate No. FM 34819


Material safety dataMaterial Safety Data sheets are available on our website.

Jointing and installationDurapipe PVC-U solvent cement must be used exclusively forfabrication of the PVC-U system. Performance guarantees are nulland void if other solvent cements are used.

Storage and installation outdoorsCare should be taken to avoid exposure to sunlight. This will causediscoloration and embrittlement of the PVC-U material. Whilst thisis a surface effect only, it is recommended that precautions betaken to prevent this happening (Other sources of UV light canhave a similar effect).PVC-U products should be stored indoors, under a shelter, orcovered with a tarpaulin. It is acceptable to install PVC-U outdoors.Painting of any un-insulated pipework installed in a sunny locationwill be sufficient to protect the PVC-U material from the effects ofsunlight.

Filling and flushingWhen purchasing chemicals for either flushing or long-term systemuse, suppliers should be advised that this is for PVC-U material.Guidance on the suitability of various system flushing or fillingfluids with PVC-U can be found in the Durapipe Chemical Datacatalogue.

TestingIt is suggested that the following test procedure be followed, afterjoints have been allowed to dry for the appropriate minimum time(at least 24 hours up to 8"/225mm, sizes 10"/250mm and12"/315mm require a minimum of 48 hours at 20°C).The system should be divided conveniently into test sections.Fill section with cold water making sure that no air pockets remain. Do not pressurise at this stage.Check system for leaks. If none are apparent, check for and removeany remaining air. Increase pressure up to 3bar. Do not pressurisefurther at this stage.Leave section pressurised for 10 minutes. If pressure decays,inspect for leaks and rectify as necessary. If pressure remainsconstant, slowly increase the hydrostatic pressure to 11/2 timesnominal operating pressure.Leave section pressurised for a period not exceeding 1 hour. Duringthis time pressure should not change.

CautionPersonnel must stand well clear when pressure testing systems.Similarly, under no circumstances should pressure tests be carriedout using pressurised gases. Such a test could be extremelydangerous and serves no useful purpose.Note: If extended times are required to achieve hydrostaticpressure, either leakage has occurred or air remains in the line.Inspect for leakage and if none is apparent, reduce pressure andcheck for trapped air. This must be removed before furtherpressurisation commences.

AbbreviationsThe following list of abbreviations is used in this catalogue:ABS – Acrylonitrile Butadiene StyreneANSI – American National Standards InstituteBS – British StandardsBSP – British Standard Pipe ThreadDIN – Deutsche Industrie Normen

(German Industrial Standards)EPDM – Ethylene Propylene RubberFPM – Fluorine Rubber (eg. Viton®)ISO – International Standards OrganisationMEK – Methyl Ethyl KetonePN – Nominal PressurePTFE – Polytetrafloroethylene (eg. Teflon®)PVC-C – Corzan, Chlorinated Polyvinyl ChloridePVC-U – Unplasticised Polyvinyl Chloride

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 2794506

The SystemDurapipe PVC-U has become the established material for processchemicals and industrial fluid handling because of its excellentchemical resistance and its ease of installation compared to otherpiping systems.The matched system comprises a wide selection of quality pipes,fittings and valves. It is supported by Durapipes’ own Research andDevelopment facilities, a specialist Actuated Valve Department anda Technical Support Department with considerable experience ofthermoplastic piping systems. They are on hand to give expertadvice on any aspect of the Durapipe PVC-U systems. This user’s guide serves to outline the design and installationtechniques required to achieve a safe, high integrity long lastingsystem. Details that are not available in this publication can beobtained from our Technical Support Department.

The advantages of Durapipe PVC-U include:

Chemical ResistanceDurapipe PVC-U has excellent chemical resistance which allowsthe safe transportation of many acids, alkalis and chemicalconcentrates without fear of corrosion and environmental pollution.For details of chemical resistance of Durapipe PVC-U systems referto brochure D0238 Durapipe Systems Chemical Resistance Data.

Non-toxic and Taint FreeThe Durapipe PVC-U formulation does not contain lead and is freefrom harmful metallic stabilizers. The Durapipe PVC-U system issuitable and UK Water Regulations Advisory Scheme approved forpotable water distribution without the risk of taint or contaminationof the media by migration of undesirable additives.

Abrasion ResistanceDurapipe PVC-U offers good resistance to abrasion and erosionfrom aggressive slurries which can rapidly damage steel or othertraditional pipe materials.

Smooth BoreThe exceptionally smooth bore results in low frictional head lossesand also inhibits the formation of scale, with consequent savings inpump energy consumption, and reduced pressure drops.

LightweightAt half the weight of equivalent copper pipe and one-sixth theweight of steel systems, Durapipe PVC-U is much easier to handle,especially during installation at site.

Easy to JointSolvent welding gives fast and trouble free installation and allowssimple modification of existing systems with minimum specialisttraining.

AvailabilityAn established network of stockholding distributors in the UK andoverseas ensures that Durapipe PVC-U systems are alwaysavailable near point of use.

Mechanical/Physical/Electrical DataMechanicalUltimate tensile strength (23°C) 53 MN/m

2

Tensile strength at break 45.00 MPaYoung’s Modulus 3060 MPaCompressive strength 55 MN/m

2

Poisson’s Ratio 0.35Izod impact strength at 23°C (notched) 0.08 kJ/m

2

PhysicalSpecific gravity 1.41Softening point (ISO 306: 1994 method B120) 77°C Linear coefficient of thermal expansion 7.8 (x10-5/°C)Heat distortion point 74°CASTM D648 – 4.5 MN/mThermal Conductivity 0.147 W/m °CSpecific heat 0.84-2.1 J/gElectricalDielectric constant 3.0 at 106HzVolume resistivity 10

16ohm/cm


Product Range and Pressure Rating

Imperial SystemThe Durapipe PVC-U Imperial system is manufactured in sizes asdefined by BS4346 from 3⁄8" n.b. (nominal bore) up to 12" n.b.with a wide range of fittings. Systems can be used to convey fluidsat maximum continuous working pressures of up to 15 bar at 20°C.(Durapipe PVC-U pipes are available in sizes 1/2" - 6" n.b.)

Metric SystemThe Durapipe PVC-U Metric system is manufactured in accordancewith the sizes detailed in DIN 8061/2 and DIN 8063 from 12mm o.d. (outside diameter) up to 315mm o.d. Pipes and fittingsare 16 bar pressure rated at 20°C for sizes up to 160mm. 200mm– 315mm fittings are 10 bar rated at 20°C. (Durapipe PVC-U pipesare available in sizes 20mm - 63mm).

CompatibilityThe components of each dimensional system are notinterchangeable with each other, except for sizes 75mm/21⁄2" and 140mm/5". They can be joined by using the mm/imperialadaptor fittings or by flanges. They are, however, interchangeablewith other piping products manufactured in accordance with thestandards referred to.Durapipe PVC-U imperial male and female threads are tapered(excluding back nuts, tank connectors and tap connectors whichare parallel threaded) and conform to the nominal requirements ofBS21/DIN 2999/ISO 7. Durapipe PVC-U metric male and female threads are parallelthreaded, and conform to the nominal requirements of ISO 228.

Ordering by Code Code numbers should be used when ordering products e.g.

The eight digit code is structured as follows:

Imperial

Range Shape Size

PVC-U Tee 3inch

02 122 109

CodeMetric

Range Shape Size

PVC-U Tee 90mm

33 122 313

Code

Note: for valve code structure refer to value tech brochure ref. D0894.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 2794508

Index to PVC-U Imperial Fittings

Pipes (plain)page 10

Elbows 45° (plain)page 12

Socket union threadedadaptorspage 15

Hose adaptors(threaded)page 18

Hexagon nipples(plain/threaded)page 17

Sockets (plain)page 11

‘O’ ring sockets (plain)page 11

Reducing sockets (plain)page 11

Reducing bushes (plain)page 12

Elbows 90° (plain)page 12

Tees (plain)page 13

Bends 90°short radius (plain)page 13

Bends 90°long radius (plain)page 13

Bends 45°long radius (plain)page 13

Repair sockets page 11

Sockets (threaded)page 19

Elbows 90°(plain/threaded)page 19

Hexagon nipples(threaded)page 20

Tank connectors(plain/threaded)page 19

Sockets(plain/threaded)page 16

Imperial/Metric socketadaptors (plain)page 16

Socket union nutspage 15

Bends 221⁄2°long radius (plain)page 14

Saddles (plain)page 14

‘Y’ pieces (plain)page 14

Caps (plain)page 14

Socket union plain adaptorspage 15

Socket unions (plain)page 15

Composite unions malebrasspage 18

Composite unionsfemale brass page 18

Adaptors female (plain)male (threaded)page 17

Adaptors female (plain)male (threaded)page 17

Adaptors male (plain)female (threaded)page 17

Reducing bushes(plain/threaded)page 16

Barrel nipples (plain/threaded)page 16

Hose adaptors page 19


* For details of our full range of manual and actuated valves please ask for a copy of our Valves Technical Catalogue D0894.

Back nuts (threaded)page 20

Elbows 45° (threaded)page 21

Plugs (threaded)page 20

Caps (threaded)page 20

Elbows 90° (threaded)page 21

Reducing bushes(threaded)page 21

Tees 90° (threaded)page 21

Unions (threaded)page 22

Reducing bushes(threaded)page 22

Reducers (threaded)page 22

Flanges full face(drilled and undrilled)page 23

Flanges stub serratedpage 24

Flanges blanking(drilled and undrilled)pages 24 & 25

‘O’ rings for socketunionspage 25

Gaskets flatpage 25

Gaskets full facepage 26

Backing ringspage 27

Valve support platespage 27

VX double union ballvalves (manual)page 29

VK double union ballvalves (manual)page 29

Solvent cement and MEK cleaner page 28

Saddle clipspage 28

Cobra clipspage 28

SK single union ball valvespage 29

ML/MT/MC multiportball valvespage 30

VT 3-way valves page 30

VA air release valvespage 31

UV/UT sediment strainerspage 32

PR pressure relief valvespage 32

VM diaphragm valvespage 33

SR single union ball check valves page 31

GOEMA pipe clipspage 28

FK butterfly valvespage 33

*

* * * * * *

* * *

*

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945010

Class C 9 bar @ 20°CSize d1 t SL kg/m Code2 60.3 2.8 6 0.73 06 511 1073 88.9 3.8 6 1.05 06 511 1094 114.3 4.9 6 2.43 06 511 1106 168.3 7.1 6 4.89 06 511 112

Class D 12 bar @ 20°CSize d1 t SL kg/m Code11⁄2 42.2 2.5 6 0.46 06 512 10511⁄4 48.3 2.8 6 0.46 06 512 1062 60.3 3.4 6 0.84 06 512 1073 88.9 5.0 6 1.85 06 512 1094 114.3 6.5 6 3.12 06 512 1106 168.3 9.5 6 6.97 06 512 112

Class E 15 bar @ 20°CSize d1 t SL kg/m Code1⁄2 21.4 1.9 6 0.16 06 513 1023⁄4 26.7 2.2 6 0.23 06 513 1031 33.6 2.5 6 0.32 06 513 10411⁄4 42.2 3.0 6 0.52 06 513 10511⁄2 48.3 3.4 6 0.67 06 513 1062 60.3 4.2 6 1.00 06 513 1073 88.9 6.2 6 2.13 06 513 1094 114.3 7.9 6 3.73 06 513 1106 168.3 11.7 6 8.02 06 513 112

Class 7 12 bar @ 20°C after threadingSize d1 t SL kg/m Code1⁄2 21.4 4.0 6 0.31 06 514 1023⁄4 26.7 4.2 6 0.43 06 514 1031 33.6 4.8 6 0.62 06 514 10411⁄4 42.2 5.2 6 0.85 06 514 10511⁄2 48.3 5.5 6 1.04 06 514 1062 60.3 5.9 6 1.43 06 514 107

PVC-U Pipe Imperial System plain

d1 (mean)

t (mean)


Sockets plain

B

Z1

A

Size A B Z1 gms Code3⁄8 21 32 2 5 02 100 1011⁄2 26 38 2 8 02 100 1023⁄4 32 43 3 16 02 100 1031 41 50 3 30 02 100 10411⁄4 52 60 4 46 02 100 10511⁄2 60 66 2 81 02 100 1062 74 78 4 147 02 100 10721⁄2 88 94 4 250 12 100 3123 104 105 3 325 02 100 1094 136 135 5 768 02 100 1105 171 163 7 1240 12 100 3166 190 192 12 1884 02 100 1128 257 249 11 4732 02 100 11310 308 309 10 5800 02 100 11412 362 343 13 9800 02 100 115

‘O’ ring sockets

B

A

C

Z1

PressureSize A B C Z1 Class gms Code

2 74 78 27 4 D 142 02 305 1073 108 104 37 4 D 460 02 305 1094 136 132 49 6 D 790 02 305 1106 201 191 74 8 C 3017 02 305 1128 255 248 94 14 B 4140 02 305 113

‘O’ rings EPDM

PressureSize A B C Class gms Code

2 74 77 49 D 141 02 307 10721⁄2 93 94 64 C 293 02 307 1083 107 104 78 D 456 02 307 1094 136 131 101 D 760 02 307 1105 173 165 129 C 1760 02 307 1116 201 192 152 C 2965 02 307 1128 256 249 199 B 4100 02 307 113

‘O’ rings EPDM

Repair sockets

B

A

C

Size A B C Z1 gms Code3⁄4 x 1⁄2 32 44 26 7 14 02 114 1221 x 3⁄4 41 53 33 9 27 02 114 124

11⁄4 x 1 52 63 41 10 50 02 114 12511⁄4 x 11⁄4 59 68 51 8 75 02 114 127

2 x 11⁄2 74 82 59 12 129 02 114 1303 x 2 108 114 75 26 413 02 114 1354 x 3 136 136 108 20 720 02 114 1416 x 4 205 213 140 55 2548 02 114 1478 x 6 256 263 198 50 4400 02 114 152

Reducing sockets

B

A

Z1

C

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945012

Reducing bushes plain

BZ1

Size B Z1 gms Code1⁄2 x 3⁄8 17 2 9 02 109 1213⁄4 x 1⁄2 20 3 10 02 109 1221 x 1⁄2 23 6 30 02 109 1231 x 3⁄4 24 4 20 02 109 124

*11⁄4 x 1⁄2 28 12 28 02 109 116*11⁄4 x 3⁄4 28 8 32 02 109 11711⁄4 x 1 28 5 26 02 109 125

*11⁄2 x 1⁄2 30 13 34 02 109 118*11⁄2 x 3⁄4 30 10 35 02 109 119*11⁄2 x 1 30 7 51 02 109 12611⁄2 x 11⁄4 31 4 25 02 109 127*2 x 3⁄4 38 15 59 02 109 120*2 x 1 38 15 59 02 109 128*2 x 11⁄4 38 11 76 02 109 1292 x 11⁄2 37 7 54 02 109 130

21⁄2 x 2 44 8 97 02 109 131*3 x 11⁄2 51 21 175 02 109 134*3 x 2 51 15 229 02 109 1353 x 21⁄2 50 6 162 02 109 136

*4 x 3 65 12 357 02 109 1415 x 4 78 15 548 02 329 142

*6 x 4 93 27 859 02 109 1476 x 5 90 13 850 02 329 148

*8 x 6 110 23 1500 02 109 15210 x 8 140 25 3500 02 109 15112 x 10 165 25 4100 02 109 153

*Relief configuration (see drawing insert).

Elbows 45° plain

Z1

A

C

Size A C Z1 gms Code3⁄8 21 20 6 11 02 119 1011⁄2 27 26 8 12 02 119 102

3⁄4 33 33 12 20 02 119 1031 41 37 13 36 02 119 10411⁄4 52 44 15 76 02 119 10511⁄2 60 50 18 111 02 119 1062 82 66 27 206 02 119 10721⁄2 90 63 17 320 12 119 3123 112 94 40 1015 02 119 1094 139 115 50 1735 02 119 1105 173 115 37 1660 12 119 3166 198 134 41 3080 02 119 1128 259 182 65 7250 02 119 113

10 307 206 66 9800 02 119 11412 363 243 78 15500 02 119 115

Elbows 90° plain

A

Z1

C

Size A C Z1 gms Code3⁄8 21 24 9 8 02 115 1011⁄2 26 29 12 14 02 115 102

3⁄4 32 34 14 24 02 115 1031 41 41 17 45 02 115 10411⁄4 52 49 21 90 02 115 10511⁄2 60 56 26 130 02 115 1062 74 68 31 246 02 115 10721⁄2 90 83 38 450 12 115 3123 111 104 52 930 02 115 1094 137 125 61 1271 02 115 1105 173 153 76 2080 12 115 3166 199 177 84 3640 02 115 1128 256 251 112 8900 02 115 113

10 307 286 146 13300 02 115 11412 363 340 175 20300 02 115 115


Tees plain

C

Z1

BAZ1

Size A B C Z1 gms Code3⁄8 21 49 25 10 9 02 122 1011⁄2 26 58 29 11 17 02 122 1023⁄4 32 69 34 15 30 02 122 1031 41 83 42 19 56 02 122 10411⁄4 52 101 50 23 118 02 122 10511⁄2 59 113 53 25 170 02 122 1062 74 137 70 31 321 02 122 10721⁄2 90 172 87 36 605 12 122 3123 113 204 105 44 1195 02 122 1094 143 246 127 55 1720 02 122 1105 172 307 153 72 4150 12 122 3166 199 352 172 84 4900 02 122 1128 257 468 240 100 12400 02 122 113

10 306 573 287 148 18600 02 122 11412 363 680 340 175 27200 02 122 115

Bends 90° short radius plain

Z1

C

A

Size A C Z1 gms Code1⁄2 26 56 43 26 02 118 1023⁄4 33 65 45 60 02 118 1031 40 85 63 86 02 118 10411⁄4 51 108 81 175 02 118 10511⁄2 62 134 102 360 02 118 1062 73 165 126 755 02 118 10721⁄2 93 195 150 1100 12 118 3123 111 226 172 1907 02 118 1094 140 280 216 3168 02 118 110

Bends 90° long radius plain

CR

E

Size C E R gms Code

3 403 98 305 1510 02 309 1094 545 138 407 3350 02 309 1106 817 207 610 11000 02 309 112

Tolerance on angle ±3°

Bends 45° long radius plain

C

R

E

Size C E R gms Code

1 75 37 102 77 02 310 10411⁄2 113 55 152 204 02 310 1062 152 73 203 316 02 310 1073 238 121 305 1080 02 310 1094 300 145 407 2235 02 310 1106 440 218 610 7340 02 310 112


Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945014

Bends 221/2° long radius

R

C

E

Size C E R gms Code

1 76 38 102 50 02 311 10411⁄2 110 57 152 148 02 311 1062 113 73 203 285 02 311 1073 202 114 305 858 02 311 1094 262 152 407 1804 02 311 1106 385 229 610 5993 02 311 112


Saddles plain

B

E

AZ1

pipecentre

line

Size A B E Z1 gms Code

2 x 11⁄4 60 136 48 33 116 02 126 1293 x 11⁄2 76 140 60 46 204 02 126 1344 x 2 95 140 74 58 305 02 126 1406 x 2 71 154 73 86 300 02 126 146

Two saddles can be mounted diametrically opposite.

Caps plain

B

A

Size A B gms Code3⁄8 21 17 4 02 140 1011⁄2 26 22 7 02 140 1023⁄4 32 25 12 02 140 1031 40 30 26 02 140 10411⁄4 52 35 42 02 140 10511⁄2 59 39 62 02 140 1062 74 47 116 02 140 10721⁄2 94 59 250 12 149 3123 109 65 343 02 140 1094 136 84 600 02 140 1106 189 171 1650 02 140 112

‘Y’ pieces plain

B

A

Z1

Z3

C

Z2

Size A B C Z1 Z2 Z3 gms Code1⁄2 28 68 44 34 27 7 36 02 128 1023⁄4 33 81 52 41 32 8 56 02 128 1031 41 97 63 49 39 9 95 02 128 10411⁄4 50 117 80 61 52 10 250 02 128 10511⁄2 60 140 97 80 67 12 384 02 128 1062 74 170 113 90 73 15 704 02 128 107


Socket unions plain

B

Z2Z1

A

Size A B Z1 Z2 gms Code3⁄8 38 44 5 10 35 02 205 1011⁄2 46 49 5 10 50 02 205 1023⁄4 52 55 5 10 73 02 205 1031 63 65 7 12 115 02 205 10411⁄4 72 77 10 14 163 02 205 10511⁄2 80 92 13 16 215 02 205 1062 101 112 15 19 395 02 205 10721⁄2 135 107 8 13 610 12 205 3123 155 113 6 4 975 02 205 1094 180 138 7 6 1500 02 205 110

3" and 4" are Class C. EPDM seal as standardFor FPM seal order by type 204

Socket union plain adaptors

B

A

Size A B gms Code3⁄8 23 19 6 02 206 1011⁄2 28 22 9 02 206 1023⁄4 34 25 14 02 206 1031 43 30 26 02 206 10411⁄4 53 38 52 02 206 10511⁄2 58 44 63 02 206 1062 74 53 120 02 206 107

Socket union threaded adaptors

B

A

Size A B gms Code3⁄8 21 23 13 02 207 1011⁄2 25 26 19 02 207 1023⁄4 29 32 28 02 207 1031 42 34 44 02 207 10411⁄4 55 39 62 02 207 10511⁄2 61 46 78 02 201 1062 76 58 149 02 207 107

Socket union nuts

B

A

Size A B gms Code3⁄8 39 23 14 02 208 1011⁄2 43 25 19 02 208 1023⁄4 51 27 25 02 208 1031 64 29 39 02 208 10411⁄4 72 26 52 02 208 10511⁄2 79 23 68 02 208 1062 102 32 127 02 208 107

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945016

Imperial/metric socket adaptors plain

B

Z1

A

Size A B Z1 gms Code1⁄2 x 20 26 37 3 12 33 345 1023⁄4 x 25 31 41 3 22 33 345 1031 x 32 40 49 3 44 33 345 104

11⁄4 x 40 50 58 2 65 33 345 10511⁄2 x 50 59 67 3 125 33 345 106

2 x 63 74 78 2 210 33 345 1073 x 90 107 105 3 438 33 345 1094 x 110 134 130 6 852 33 345 110

Sockets plain/BSP threaded

BC

Z1

A

Size A B C Z1 gms Code1⁄2 27 38 17 4 11 02 101 1023⁄4 33 44 20 2 18 02 101 1031 42 51 23 5 39 02 101 10411⁄4 52 55 22 4 59 02 101 10511⁄2 60 61 26 2 83 02 101 1062 75 70 29 2 147 02 101 10721⁄2 90 92 30 18 260 33 101 1083 110 107 52 3 488 02 101 109

Reducing bushes plain/BSP threaded

BZ1

Size B Z1 gms Code1⁄2 x 3⁄8 17 6 5 02 111 1213⁄4 x 1⁄2 20 5 9 02 111 1221 x 3⁄4 23 6 15 02 111 124

Barrel nipples plain/BSP threaded

B

D

Size B D gms Code

3 129 31 300 02 316 1094 153 37 560 02 316 110

PVC nipples are made from Durapipe PVC-U pipes.


Hexagon nipples male plain/BSP threaded

B

D

A(A/F)

Size A B D gms Code3⁄8 24 36 11 10 02 107 1011⁄2 30 42 15 16 02 107 1023⁄4 36 48 16 40 02 107 1031 46 56 20 50 02 107 10411⁄4 46 60 21 60 02 107 10511⁄2 55 63 22 80 02 107 1062 72 74 26 123 02 107 107

Adaptors male/female plain/BSP threaded

Z1

B

A

Size A B Z1 gms Code1⁄2 27 38 16 10 02 153 1023⁄4 36 44 18 18 02 153 1031 43 50 21 31 02 153 10411⁄4 55 60 22 63 02 153 10511⁄2 63 66 25 88 02 153 1062 78 78 29 167 02 153 107

Adaptors female/male plain/BSP threaded

Z1

B

A

D

Size A B D Z1 gms Code3⁄8 22 35 10 20 7 02 151 1011⁄2 27 45 12 28 12 02 151 1023⁄4 35 48 14 28 18 02 151 103

Adaptors female/male plain/BSP threaded

B

Z1

D

A(A/F)

Size A B D Z1 gms Code

1 46 58 19 35 48 02 151 10411⁄4 56 66 22 38 80 02 151 10511⁄2 72 75 22 43 150 02 151 1062 80 85 26 46 200 02 151 107

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945018

Composite unions plain/BSP threaded female brass

Z1

A(A/F)

B

Z2

Size A B Z1 Z2 gms Code1⁄2 40 42 3 7 165 02 212 1023⁄4 48 49 3 9 290 02 212 1031 55 59 11 12 310 02 212 10411⁄4 65 68 9 10 450 02 212 10511⁄2 79 75 12 14 800 02 212 1062 88 90 14 14 950 02 212 107

Fitted with brass retaining nut.Brass material to BS2872, WRAS approved.

Composite unions plain/BSP threaded male brass

B

Z1

A(A/F)

Size A B Z1 gms Code1⁄2 40 54 3 175 02 217 1023⁄4 48 74 3 320 02 217 1031 55 86 8 420 02 217 10411⁄4 65 94 10 620 02 217 10511⁄2 78 108 13 1000 02 217 1062 88 129 15 1200 02 217 107

Fitted with brass retaining nut. Brass material to BS2872, WRAS approved.

Hose adaptors BSP threaded

BD

A(A/F)

C

E

Size A B C D E gms Code1⁄2 26 61 42 13 13 10 02 157 1023⁄4 29 65 40 16 20 19 02 157 1031 40 73 46 18 27 37 02 157 104

Hose adaptors BSP threaded

L

HSize L H gms Code1⁄4 x 12 x 14 11.0 56 7 93 157 6003⁄8 x 16 x 18 11.4 58 14 93 157 6021⁄2 x 20 x 22 15.0 66 19 93 157 6053⁄4 x 25 x 27 16.3 81 30 93 157 6081 x 30 x 32 19.1 97 45 93 157 61211⁄4 x 40 x 42 21.4 104 85 93 157 61611⁄2 x 50 x 52 21.4 111 120 93 157 6232 x 60 x 64 25.7 123 180 93 157 630


Hose adaptors

LH

Size L H gms Code1⁄2 x 12 x 14 14.0 56 15 93 156 6013⁄4 x 16 x 18 11.5 60 24 93 156 603

1 x 20 x 22 11.0 67 35 93 156 60611⁄4 x 25 x 27 14.0 81 55 93 156 60911⁄2 x 30 x 32 16.0 97 80 93 156 6132 x 40 x 42 18.0 104 140 93 156 61621⁄4 x 50 x 52 17.5 111 200 93 156 62323⁄4 x 60 x 64 20.0 123 300 93 156 630

Tank connectors plain/BSP threaded

B

D

A(A/F)F C

Size A B C D F gms Code1⁄2 28 70 38 29 16 34 02 235 1023⁄4 33 76 38 32 20 39 02 235 1031 46 102 55 42 24 110 93 235 10411⁄4 50 120 65 44 32 154 93 235 10511⁄2 59 165 70 61 37 207 93 235 1062 79 153 93 59 49 358 93 235 1073 105 204 129 90 760 656 93 235 109

Elbows 90° plain/BSP threaded

A

Z1

C

Z1

Size A C Z1 gms Code1⁄2 26 34 17 35 02 116 1023⁄4 32 36 20 51 02 116 1031 40 41 23 80 02 116 10411⁄4 55 50 27 140 02 116 10511⁄2 62 57 30 175 02 116 1062 75 66 35 261 02 116 107

Sockets BSP threaded

B

A

Size A B gms Code1⁄2 26 38 16 02 102 1023⁄4 33 43 28 02 102 1031 41 51 44 02 102 10411⁄4 51 54 77 02 102 10511⁄2 62 63 112 02 102 1062 75 72 170 02 102 10721⁄2 90 91 275 93 102 1083 110 107 564 02 102 1094 130 127 665 93 102 110

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945020

Hexagon nipples BSP threaded

B

D

A(A/F)

Size A B D gms Code3⁄8 24 38 14 9 02 106 1011⁄2 30 46 18 15 02 106 1023⁄4 36 50 19 38 02 106 1031 46 59 13 50 02 106 10411⁄4 46 67 27 65 02 106 10511⁄2 55 73 29 100 02 106 1062 72 81 33 175 02 106 10721⁄2 80 78 30 150 93 106 1083 76 85 33 225 93 106 1094 120 97 39 380 93 106 110

Back nuts BSP threaded

B

A(A/F)C

Size A B C gms Code3⁄8 25 11 29 6 02 159 1011⁄2 28 13 38 10 02 159 1023⁄4 33 13 38 19 02 159 1031 45 16 54 24 02 159 10411⁄4 50 18 58 25 02 159 10511⁄2 60 19 69 39 02 159 1062 79 21 91 83 02 159 107

Plugs BSP threaded

B

D

A(A/F)

Size A B D gms Code3⁄8 11 19 10 4 02 155 1011⁄2 13 23 14 7 02 155 1023⁄4 14 28 15 10 02 155 1031 17 30 17 16 02 155 10411⁄4 22 35 22 39 02 155 10511⁄2 27 38 22 46 02 155 1062 37 45 26 64 02 155 107

Caps BSP threaded

B

A

D

Size A B D gms Code3⁄8 26 20 16 7 02 141 1011⁄2 27 20 16 8 02 141 1023⁄4 36 23 17 13 02 141 1031 44 28 21 23 02 141 10411⁄4 55 31 22 42 02 141 10511⁄2 63 35 25 65 02 141 1062 78 40 28 116 02 141 1073 111 65 53 338 02 141 109


Elbows 90° BSP threaded

A

Z1

C

Size A C Z1 gms Code1⁄2 26 29 17 35 02 117 1023⁄4 32 33 19 53 02 117 1031 41 41 23 84 02 117 10411⁄4 55 51 25 149 02 117 10511⁄2 63 57 30 181 02 117 1062 75 67 35 273 02 117 10721⁄2 90 85 49 450 93 117 1083 107 98 61 835 93 117 1094 130 119 75 1135 93 117 110

Reducing bushes BSP threaded

B

D

A(A/F)

Size A B D gms Code1⁄2 x 3⁄8 24 25 10 7 02 113 1213⁄4 x 1⁄2 30 27 11 10 02 113 1221 x 3⁄4 36 31 12 19 02 113 124

11⁄4 x 1 52 34 15 30 93 113 12511⁄2 x 11⁄4 58 35 14 30 93 113 127

2 x 11⁄2 70 40 19 72 93 113 130

Male thread taper. Female thread parallel.

Elbows 45° BSP threaded

Z1

A

CSize A C Z1 gms Code1⁄2 28 22 7 18 93 120 1023⁄4 33 24 8 24 93 120 1031 41 30 11 45 93 120 10411⁄4 50 36 15 68 93 120 10511⁄2 64 42 21 140 93 120 1062 76 52 26 255 93 120 10721⁄2 90 62 31 345 93 120 1083 107 72 39 625 93 120 109

Tees 90° BSP threaded

C

Z1

BAZ1

Size A B C Z1 gms Code3⁄8 22 46 23 8 18 93 125 1011⁄2 27 54 27 11 25 93 125 1023⁄4 35 66 33 14 46 93 125 1031 43 81 40 20 76 93 125 10411⁄4 50 96 49 22 117 93 125 10511⁄2 61 116 61 34 260 93 125 1062 76 143 70 42 465 93 125 10721⁄2 90 169 88 51 640 93 125 1083 109 199 103 63 1135 93 125 1094 133 245 130 80 1710 93 125 110

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945022

Unions BSP threaded/EPDM seals

BZ2Z1

A

Size A B Z1 Z2 gms Code3⁄8 33 40 5 10 22 93 203 1011⁄2 41 46 5 13 35 93 203 1023⁄4 50 51 6 16 65 93 203 1031 58 57 6 17 85 93 203 10411⁄4 72 65 7 19 145 93 203 10511⁄2 79 65 7 18 180 93 203 1062 98 78 8 24 325 93 203 107

Reducing bushes BSP threaded, reduced spigot socket

B

Z1

A

D

Size A B D Z1 gms Code3⁄8 x 1⁄2 36 41 15 16 22 93 174 1221 x 3⁄4 46 45 16 19 42 93 174 124

11⁄4 x 1 55 55 19 21 55 93 174 12511⁄2 x 11⁄4 65 62 21 21 102 93 174 1272 x 11⁄2 80 69 21 26 165 93 174 13021⁄2 x 2 95 81 26 30 210 93 174 1313 x 21⁄2 110 93 30 33 360 93 174 1364 x 3 129 106 33 39 500 93 174 141

Reducers BSP threaded, reduced socket

B

Z1

A

DSize A B D Z1 gms Code1⁄2 x 3⁄8 28 35 15 11 10 93 173 1213⁄4 x 3⁄8 34 36 16 11 12 93 173 1643⁄4 x 1⁄2 34 39 16 15 15 93 173 1221 x 3⁄8 40 41 19 11 20 93 173 1661 x 1⁄2 40 44 19 15 24 93 173 1231 x 3⁄4 40 46 19 16 25 93 173 124

11⁄4 x 1⁄2 52 48 21 15 37 93 173 11611⁄4 x 3⁄4 52 49 21 16 37 93 173 11711⁄4 x 1 52 52 21 19 40 93 173 12511⁄2 x 1⁄2 58 52 21 15 46 93 173 11811⁄2 x 3⁄4 58 50 21 16 47 93 173 11911⁄2 x 1 58 55 21 19 52 93 173 12611⁄2 x 11⁄4 58 57 21 21 54 93 173 127

2 x 3⁄4 70 60 26 16 80 93 173 1202 x 1 70 63 26 19 80 93 173 1282 x 11⁄4 70 65 26 21 85 93 173 1292 x 11⁄2 70 65 26 21 102 93 173 130

21⁄2 x 2 80 56 30 26 155 93 173 1313 x 2 93 66 33 26 185 93 173 1353 x 21⁄2 93 66 33 30 200 93 173 1364 x 3 118 79 39 33 500 93 173 141


Flanges full face plain/drilled

A

Z1

DB

Drilled to BS10:1962 – Table ENo. of Hole

Size A B D Z1 P.C.D. Holes Diameter gms Code1⁄2 96 21 10 4 67 4 14 88 02 130 1023⁄4 105 24 10 4 73 4 14 101 02 130 1031 115 27 10 4 83 4 14 137 02 130 10411⁄4 140 33 10 5 87 4 14 157 02 130 10511⁄2 150 37 10 5 98 4 14 198 02 130 1062 166 45 10 6 115 4 18 287 02 130 1073 199 60 11 8 145 4 18 513 02 130 109*4 220 72 14 6 178 8 18 823 02 130 1106 284 98 22 8 235 8 22 1730 02 130 112

*4" BS10 Table D has 4 holes and should be ordered as 02 317 110.

Drilled to BS4504: Section 3.1:1989 Table 11No. of Hole

Size A B D Z1 P.C.D. Holes Diameter gms Code1⁄2 96 21 10 4 65 4 14 88 02 319 1023⁄4 105 24 10 4 75 4 14 101 02 319 1031 115 27 10 4 85 4 14 137 02 319 10411⁄4 140 33 10 5 100 4 18 157 02 319 10511⁄2 150 37 10 5 110 4 18 198 02 319 1062 166 45 10 6 125 4 18 287 02 319 1073 199 60 11 8 160 8 18 513 02 319 1094 220 72 14 6 180 8 18 823 02 319 1106 284 98 22 8 240 8 22 1730 02 319 112

Drilled to ANSI Class 150No. of Hole

Size A B D Z1 P.C.D. Holes Diameter gms Code1⁄2 96 21 10 4 60 4 14 88 02 322 1023⁄4 105 24 10 4 70 4 14 101 02 322 1031 115 27 10 4 80 4 14 137 02 322 10411⁄2 150 37 10 5 98 4 14 198 02 322 1062 166 45 10 6 121 4 18 287 02 322 1073 199 60 11 8 152 4 18 513 02 322 1094 220 72 14 6 190 8 18 823 02 322 1106 284 98 22 8 241 8 22 1730 02 322 112

Flanges full face plain/undrilled

A

Z1

DB

Size A B D Z1 gms Code1⁄2 96 21 10 4 96 02 129 1023⁄4 105 24 10 4 110 02 129 1031 115 27 10 4 143 02 129 10411⁄4 140 32 10 4 168 02 129 10511⁄2 150 36 10 5 207 02 129 1062 165 45 11 6 300 02 129 1073 199 60 11 8 530 02 129 1094 220 73 14 6 842 02 129 1106 284 99 22 8 1817 02 129 112

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945024

Flanges stub serrated

B

D

Z1

A


2 96 40 14 3 115 02 135 10721⁄2 106 49 10 4 165 12 135 3123 127 57 18 6 265 02 135 1094 159 69 20 6 465 02 135 1105 180 83 14 7 700 12 135 3166 213 104 24 11 1100 02 135 1128 269 132 26 14 2700 02 135 113

*10 326 155 29 8 3450 02 139 114*12 378 178 33 9 5060 02 139 115

*Taper back flange (see drawing insert).

Flanges blanking drilled

B

A


Size A B P.C.D. Holes Diameter gms Code2 165 13 115 4 18 300 02 313 1073 197 19 145 4 18 690 02 313 109

*4 214 19 178 8 18 950 02 313 1106 286 26 235 8 22 2100 02 313 1128 337 26 292 8 22 3020 02 313 113


Drilled to BS4504: Section 3.1:1989 Table 11 No. of Hole

Size A B P.C.D. Holes Diameter gms Code2 165 13 125 4 18 300 02 323 1073 197 19 160 8 18 690 02 323 1094 214 19 180 8 18 950 02 323 1106 286 26 240 8 22 2100 02 323 1128 337 26 295 12 22 3020 02 323 113


Size A B P.C.D. Holes Diameter gms Code2 165 13 121 4 18 300 02 325 1073 197 19 152 4 18 690 02 325 1094 214 19 190 8 18 950 02 325 1106 286 26 241 8 22 2100 02 325 1128 337 26 298 8 22 3020 02 325 113


Flanges blanking undrilled

B

A

Size A B gms Code

1 116 13 160 02 131 10411⁄2 150 13 250 02 131 1062 166 13 300 02 131 1073 200 20 690 02 131 1094 215 19 950 02 131 1106 286 26 2100 02 131 1128 338 26 3020 02 131 113

‘O’ rings for socket unions

B

EPDM Viton (FPM)Size B gms Code Code3⁄8 3.5 0.5 03 209 101 03 211 1011⁄2 3.5 1 03 209 102 03 211 1023⁄4 3.5 2 03 209 103 03 211 1031 3.5 3 03 209 104 03 211 10411⁄4 5.2 5 03 209 105 03 211 10511⁄2 5.2 6 03 209 106 03 211 1062 5.3 7 03 209 107 03 211 10721⁄2 5.3 3 13 209 312 13 211 3123 5.0 5 03 209 109 03 211 1094 4.9 6 03 209 110 03 211 110

Gaskets flat stub flange EPDM

B

Size A B gms Code

2 97 3.0 21 03 431 10721⁄2 106 3.0 22 13 411 3123 128 3.0 23 03 431 1094 160 3.9 36 03 431 1105 180 4.0 60 13 411 3166 214 3.9 74 03 431 1128 269 4.0 92 03 431 113

10 327 4.1 186 03 411 11412 378 3.9 218 03 411 115

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945026

Gaskets full face drilled EPDM

B

A


Size A B P.C.D. Holes Diameter gms Code1⁄2 95 3.0 67 4 14 31 03 410 1023⁄4 112 3.0 73 4 14 37 03 410 1031 115 3.0 83 4 14 37 03 410 10411⁄4 121 3.0 87 4 14 41 03 410 10511⁄2 133 3.0 98 4 14 55 03 410 1062 153 3.0 115 4 18 56 03 410 1073 184 3.0 145 4 18 98 03 410 109*4 216 3.2 178 8 18 112 03 410 1106 280 3.1 235 8 22 160 03 410 112


Drilled to BS4504:Section 3.1:1989 Table 11No. of Hole

Size A B P.C.D. Holes Diameter gms Code1⁄2 95 3.0 65 4 14 31 03 408 1023⁄4 112 3.0 75 4 14 37 03 408 1031 115 3.0 85 4 14 37 03 408 10411⁄4 121 3.0 100 4 18 41 03 408 10511⁄2 133 3.0 110 4 18 55 03 408 1062 153 3.0 125 4 18 56 03 408 1073 184 3.0 160 8 18 98 03 408 1094 216 3.2 180 8 18 112 03 408 1106 280 3.1 240 8 22 160 03 408 112


Size A B P.C.D. Holes Diameter gms Code1⁄2 95 3.0 60 4 14 31 03 426 1023⁄4 112 3.0 70 4 14 37 03 426 1031 115 3.0 80 4 14 37 03 426 10411⁄2 133 3.0 98 4 14 55 03 426 1062 153 3.0 121 4 18 56 03 426 1073 184 3.0 152 4 18 98 03 426 1094 216 3.2 190 8 18 112 03 426 1106 280 3.1 241 8 22 160 03 426 112

Drilled to BS4504:Section 3.1:1989 Table 11(P) No. of Bolt

Size A B C D P.C.D. Holes Size gms Code1⁄2 95 6 35 14 65 4 M12x50 259 03 421 1023⁄4 106 6 45 14 75 4 M12x50 303 03 421 1031 114 6 50 14 85 4 M12x50 367 03 421 10411⁄4 141 6 60 18 100 4 M16x50 543 03 421 10511⁄2 150 6 67 18 110 4 M16x50 617 03 421 1062 165 8 79 18 125 4 M16x65 969 03 421 10721⁄2 185 8 92 18 145 4 M16x65 1204 13 421 3123 200 8 112 18 160 8 M16x70 1223 03 421 1094 220 8 139 18 180 8 M16x80 1303 03 421 1105 250 10 167 18 210 8 M16x90 2395 13 421 3166 285 10 196 22 240 8 M20x90 2722 03 421 1128+ 340 10 256 22 295 12 M20x100 5632 03 421 11310 405 15 308 26 355 12 M24x130 8732 03 403 11412 460 20 364 26 410 12 M24x150 8580 03 407 115

Drilled to ANSI Class 150(P) No. of Bolt

Size A B C D P.C.D. Holes Size gms Code1⁄2 89 6 35 14 60 4 M12x50 218 03 425 1023⁄4 98 6 45 14 70 4 M12x50 251 03 425 1031 108 6 50 14 80 4 M12x50 309 03 425 10411⁄4 117 6 60 14 90 4 M12x50 343 03 425 10511⁄2 127 6 67 14 98 4 M12x50 401 03 425 1062 152 8 79 18 121 4 M16x65 766 03 425 1073 190 8 112 18 152 4 M16x65 1095 03 425 1094 229 9 139 18 190 8 M16x70 1690 03 425 1106 279 11 196 22 241 8 M20x90 2405 03 425 1128 343 12 256 22 298 8 M20x100 3560 03 425 113


Backing rings galvanised mild steel drilled

B

A PC

D

Drilled to BS10:1962 – Table E(P) No. of Bolt

Size A B C D P.C.D. Holes Size gms Code1⁄2 95 6 35 19 67 4 M12x50 259 03 416 1023⁄4 102 6 45 14 73 4 M12x50 280 03 416 1031 114 6 40 14 83 4 M12x50 362 03 416 10411⁄4 121 6 60 14 87 4 M12x50 378 03 416 10511⁄2 133 7 67 14 98 4 M12x50 534 03 416 1062 152 8 79 18 114 4 M16x65 766 03 416 1073 184 8 111 18 146 4 M16x70 996 03 416 109*4 216 8 139 18 178 8 M16x80 1231 03 416 1106 279 10 195 21 235 8 M20x90 2232 03 416 1128 337 10 256 21 292 8 M20x100 2768 03 416 11310 405 15 308 26 356 12 M24x130 5706 03 407 11412 458 20 364 26 406 12 M24x150 8393 03 407 115

Valve support plates galvanised mild steel drilled

CM

L

EB

Drilled to BS4504: Section 3.1:1989 Table 11Size B C E L M N gms Code1⁄2 95 86 50 14 16 2 370 03 458 1023⁄4 106 89 75 14 16 2 450 03 458 1031 143 99 75 14 16 2 560 03 458 10411⁄4 152 105 75 14 16 2 950 03 458 10511⁄2 151 105 74 14 16 2 1150 03 458 1062 166 127 101 14 17 2 1380 03 458 10721⁄2 185 144 125 14 22 2 2500 31 459 3123 201 143 127 14 22 2 1650 03 458 1094 222 161 151 14 24 3 2550 03 458 1106 286 217 228 14 33 3 4100 03 458 1128 340 242 280 14 31 3 6250 03 458 113

N = No. of holes in base.For details of flange drillings see the corresponding backing ring.

*4" BS10 Table D has 4 holes and should be ordered as 03 415 110. The bore of the10" and 12" backing rings is machined to mate with the taper of the stub flanges.

+ Not available for use with FK Butterfly valve, use 8 hole backing ring code 04 996 131

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945028

Cobra pipe clips polypropylene

BG

C

A

D

Size A B C D G Bolt/Screw size gms Code3⁄8 – 35 25 19 16 M.4/3BA/No 8 7 13 434 3051⁄2 – 35 30 14 16 M.5/1BA/No 10 8 13 434 3063⁄4 – 35 35 16 17 M.5/1BA/No 10 11 13 434 3071 – 40 40 17 17 M.5/1BA/No 10 14 13 434 30811⁄4 75 45 45 20 20 M.5/1BA/No 10 21 13 434 30911⁄2 85 50 50 22 21 M.6/0BA/No 10 30 13 434 3102 102 60 60 19 21 M.6/0BA/No 10 42 13 434 31121⁄2 122 70 70 27 31 M.8 94 13 434 3123 148 80 90 39 31 M.8 121 13 434 3134 171 90 96 36 35 M.8 185 13 434 314

Clips 1" and above are fitted with a pipe retaining strap.Bolts/screws not supplied.

Saddle clips polypropylene

G E

C

F

Size C E F G Bolt/Screw size gms Code3⁄8 13 37 – 14 M.4/3BA/No 8 3 03 455 1011⁄2 18 41 – 14 M.4/3BA/No 8 4 03 455 1023⁄4 21 45 – 16 M.5/2BA/No 10 6 03 455 1031 23 56 – 16 M.5/2BA/No 10 7 03 455 10411⁄4 29 65 – 16 M.5/2BA/No 10 11 03 455 10511⁄2 34 67 – 16 M.5/2BA/No 10 12 03 455 1062 38 87 – 22 M.6/0BA/No 12 25 03 455 1073 50 122 8 34 M.10/3⁄8UNC 45 03 455 1094 65 156 13 38 M.10/3⁄8UNC 70 03 455 110

Backing plate shown dotted supplied with 3" and 4" only. Bolts/screwsnot supplied. Bolt holes in 3" and 4" clips are not countersunk.

GOEMA pipe clips

CD

B

E

G

F

G

A

Size A B C D E F G gms Code3⁄8 34 16 24 15 26 13 6 13 433 1011⁄2 39 20 26 15 33 14 7 13 433 1023⁄4 45 25 28 15 41 14 9 13 433 1031 52 32 32 15 49 15 12 13 433 10411⁄4 61 40 36 15 58 15 18 13 433 10511⁄2 67 50 39 15 68 17 25 13 433 1062 80 63 45 15 83 18 35 13 433 10721⁄2 96 75 53 15 96 19 80 13 433 3123 110 90 59 15 113 20 100 13 433 1094 135 140 72 15 140 60 25 150 13 433 1105 164 155 85 15 170 70 27 200 13 433 3166 196 180 99 15 197 90 30 250 13 433 112

Durapipe solvent cement and MEK cleaner

gms Code CodeLitres Cement Cleaner PVC-U cement MEK cleaner

0.5 500 500 03 462 395 03 463 3951.0 1100 – 03 462 396 –

Only Durapipe PVC-U solvent cement should be used for jointing ofPVC-U pipework systems.


VK double union ball valves Manual – EPDM seals

B

ZL

A

C

D

VX double union ball valves Manual – EPDM seals

ZL

D

B

C

A

SK single union ball valves EPDM seals

D

C

E

L Z L1

B

A

d DN PN L Z H E B C g Code3/8 10 16 14.5 74 103 55 49 66 195 H0 VKE 1011/2 15 16 16.5 70 103 55 49 66 195 H0 VKE 1023/4 20 16 19 77 115 66 59 75 315 H0 VKE 1031 25 16 22.5 83 128 75 66 85 435 H0 VKE 10411/4 32 16 26 94 146 87 75 97 655 H0 VKE 10511/2 40 16 30 104 164 100 87 110 880 H0 VKE 1062 50 16 36 127 199 122 101 134 1560 H0 VKE 10721/2 65 10 44 147 235 154 124 235 2945 H0 VKE 1083 80 10 51 168 270 189 142 285 4935 H0 VKE 1094 100 10 63 182 308 221 166 335 7750 H0 VKE 110

d DN PN L Z H E B C g Code1/2 15 16 16.5 49 82 53 50.0 65 145 H0 VXE 1023/4 20 16 19.0 53 91 62 58.0 76 220 H0 VXE 1031 25 16 22.5 58 103 71 65.0 85 315 H0 VXE 10411/4 32 16 26.0 68 120 84 76.0 100 505 H0 VXE 10511/2 40 16 30.0 79 139 98 85.5 112 725 H0 VXE 1062 50 16 36.0 102 174 117 103.0 137 1245 H0 VXE 10721/2 65 10 44.0 128 216 154 133.0 222 2600 H0 VXE 1083 80 10 50.5 143 244 189 154.0 270 4330 H0 VXE 109

with BS series plain female ends for solvent welding


d DN PN L L1 Z H E E1 B C g Code1/2 15 16 16.5 16.5 59.0 92 55 28 49 66 140 H0 SKE 1023/4 20 16 19.0 19.5 70.5 109 66 36 58 75 240 H0 SKE 1031 25 16 22.5 22.5 73.0 118 75 42 66 85 325 H0 SKE 10411/4 32 16 26.0 27.0 80.0 133 87 53 76 97 510 H0 SKE 10511/2 40 16 30.0 31.0 91.0 152 100 61 86 110 680 H0 SKE 1062 50 16 36.0 39.0 108.0 183 122 76 100 134 1180 H0 SKE 107


For details of our full range of manual and actuated valves please ask for a copy of our Valves Technical Catalogue D0894.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945030

ML/MT/MC Multiport ball valves Plain EPDM L Port

D

B

Z

H A

E

Z1

d Z Z1 A B D E H kg Code3⁄8 68 49 48 101 58 65 117 0.2 H0 MLE 1011⁄2 68 49 48 101 58 65 117 0.2 H0 MLE 1023⁄4 79 66 59 118 66 85 148 0.4 H0 MLE 1031 89 74 69 134 67 97 163 0.5 H0 MLE 10411⁄4 104 82 81 158 78 109 185 0.8 H0 MLE 10511⁄2 107 98 96 167 88 128 228 1.2 H0 MLE 1062 125 109 113 197 88 145 248 1.8 H0 MLE 107

Position 1 Position 2 Position 3 Operation 0º 90º 180º

L Diverting and isolating

T Diverting or mixing

C Diverting and mixing (has transflow position 10º to 80º)

D On/Off

HO MTE*** - T portHO LCE*** - C Port

VT 3-way valves Plain EPDM L Port

D

C

BZE

F A

L

Z2

L L

G

G

B2

Position 1 Position 2 Position 3 Position 4 Operation 0º 90º 180º 270°



= flow

= flow


d DN PN B C E L Z H B1 I1 I g Code

1/2 15 10 51 65 53 16.5 75 108 27.5 24 24 230 H0 VLE 1023/4 20 10 60 76 62 19.0 90 128 32.5 31 25 365 H0 VLE 103

1 25 10 67 85 71 22.5 99 144 36.5 40 27 555 H0 VLE 104

11/4 32 10 75 100 94 26.0 121 173 43.0 41 32 840 H0 VLE 105

11/2 40 10 89 112 98 30.0 137 197 51.5 53 28 1225 H0 VLE 106

2 50 10 105 137 117 36.0 171 243 59.5 58 35 2050 H0 VLE 107

For T port order H0 MTE



SR single union ball check valves Plain ends – EPDM seals

VA air release valves Plain ends – EPDM seals


with BS parallel threaded female end

d DN PN E L Z H g Code

1/2 15 16 55 15.0 93 123 120 H0 VAE 1023/4 20 16 66 16.3 113.4 146 205 H0 VAE 103

1 25 16 75 19.1 135.8 174 360 H0 VAE 104

11/4 32 16 87 21.4 157.2 200 475 H0 VAE 105

11/2 40 16 100 21.4 166.2 209 670 H0 VAE 106

2 50 16 120 25.7 196.6 248 1130 H0 VAE 107

d DN PN E L Z H g Code1/2 15 16 55 16 86 102 110 H0 SRE 1023/4 20 16 66 19 105 124 205 H0 SRE 1031 25 16 75 22 127 149 310 H0 SRE 10411/4 32 16 87 26 146 172 475 H0 SRE 10511/2 40 16 100 31 156 187 660 H0 SRE 1062 50 16 120 38 186 224 1120 H0 SRE 107

Note - Also available with BS series plain female ends

with metric series end


Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945032

UV/UT sediment strainers Socket union ends – EPDM seals

PR pressure relief valves EPDM seals

C

ZEG

B

A

D

F

d DN PN A B E L Z H K Fig. g Code

Grey Trans. maxa

1/2 15 16 16 125 72 55 16 103 135 - A 211 H0 UVE 1023/4 20 16 16 145 84 66 19 120 158 - A 358 H0 UVE 103

1 25 16 16 165 95 75 22 132 176 - A 526 H0 UVE 104

11/4 32 16 10 190 111 87 26 155 207 - A 733 H0 UVE 105

11/2 40 16 10 210 120 100 31 181 243 - A 1095 H0 UVE 106

2 50 16 10 240 139 120 38 222 298 - A 1843 H0 UVE 107

Grey or Transparentwith unionised BS series plain female ends for solvent welding

with BS series male ends for solvent welding

d Z A B C D E F G kg Code

1⁄2 92 143 20.5 35 124 M6 25 12 0.7 H0 PRE 202

3⁄4 106 143 20.5 35 144 M6 25 12 0.7 H0 PRE 203

1 108 143 25 35 154 M6 25 12 0.7 H0 PRE 204

11⁄4 120 204 36 50 174 M8 44.5 16 1.5 H0 PRE 205

11⁄2 130 204 39.5 50 194 M8 44.5 16 1.5 H0 PRE 206

2 146 219 49 50 224 M8 44.5 16 2.4 H0 PRE 207

Options: FPM diaphragm



VM diaphragm valves manual – plain spigot ends EPDM

FK butterfly valves – FPM or EPDM seals

d DN PN B B1 H h H1 I J L g Code

1/2 15 10 95 26 124 12 90 25 M6 16 700 H0 VME 2023/4 20 10 95 26 144 12 90 25 M6 19 700 H0 VME 203

1 25 10 95 26 154 12 90 25 M6 23 700 H0 VME 204

11/4 32 10 126 40 174 18 115 44.5 M8 27 1500 H0 VME 205

11/2 40 10 126 40 194 18 115 44.5 M8 32 1500 H0 VME 206

2 50 10 148 40 224 18 140 44.5 M8 39 2400 H0 VME 207

21/2 65 10 225 55 284 23 215 100 M12 44 7000 H0 VME 208

3 80 10 225 55 300 23 215 100 M12 51 7000 H0 VME 209

4 100 10 295 69 350 23 250 120 M12 - 10500 H0 VME 210

BS series plain male ends

d DN PN B2 B3 C C1 g U Code

11/2 40 16 60 137 175 100 900 4 H0 FKE 1062 50 16 70 143 175 100 1080 4 H0 FKE 10721/2 65 10 80 164 272 110 1470 4 H0 FKE 1083 80 10 93 178 272 110 1870 8 H0 FKE 1094 100 10 107 192 272 110 2220 8 H0 FKE 1105 125 10 120 212 330 110 3100 8 H0 FKE 1116 150 10 134 225 330 110 3850 8 H0 FKE 1128 200 10 161 272 420 122 6750 8 H0 FKE 113

250 & 315mm FK Butterfly valve available with gear box operation.Largest size change 225mm to 250mm.


Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945034

Index to PVC-U Metric Fittings

Pipes (plain)page 36

Bends 90°page 39

Saddle clampspage 43

Flanges full facepage 45

Sockets page 36

Reducing bushes page 37

Elbows 45°page 38

Elbows 90°page 39

Tees 90° equalpage 39

‘Y’ pieces plainpage 40

Caps, plainpage 40

Socket unionspage 40

Crosspage 41

Reducerspage 38

Hose adaptors BSP female threadedpage 44

Hose adaptors BSP male threadedpage 44

Tank connectorspage 43

Tees 90° reducingpage 41

Imperial/Metric socketadaptorspage 41

Female threadedadaptorspage 42

Male threaded adaptors page 42

Male composite unionspage 43

Female compositeunions page 43

Cobra pipe clipspage 46

‘O’ rings for socketunionspage 46

Flat gaskets/stub flangespage 46

Backing ringspage 45

Valve support platespage 45

Hose adaptors spigot endpage 44

Stub flanges serratedpage 44


Solvent cement and MEK cleaner page 46

VT 3-way valves page 47

SK single union ball valvespage 47

SR single union ball check valves page 48

VX double union ballvalves (manual)page 47

VK double union ballvalves (manual)page 47

VA air release valvespage 48

VM manual diaphragm valvespage 49

PR pressure relief valvespage 49

FK butterfly valvespage 49

UV/UT sediment strainerspage 48

* For details of our full range of manual and actuated valves please ask for a copy of our Valves Technical Catalogue D0894.

* * * * *

* * * * *

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945036

d1

Size t kg/m SL Code20 1.5 0.13 5 33 560 30625 1.9 0.20 5 33 560 30732 2.4 0.34 5 33 560 30840 3.0 0.51 5 33 560 30950 3.7 0.79 5 33 560 31063 4.7 1.25 5 33 560 311

Pipe 16 bar

d1

t minimum

Sockets

B

Z1

A

Size A B Z1 gms Code

12 17 27 3 3 33 100 30416 21 31 3 7 33 100 30520 26 35 3 11 33 100 30625 32 41 2 20 33 100 30732 40 47 3 30 33 100 30840 50 55 3 55 33 100 30950 61 65 3 90 33 100 31063 76 79 3 160 33 100 31175 90 91 3 250 33 100 31290 108 106 4 415 33 100 313

110 131 130 8 715 33 100 314125 145 145 7 960 33 100 315140 164 160 8 1240 33 100 316160 186 181 9 1680 33 100 317200 232 223 11 3050 33 100 318225 260 249 11 4600 33 100 319

*250 286 272 10 5760 33 100 320*280 320 302 10 7630 33 100 321*315 355 339 11 9780 33 100 323

*10 bar rated.


Fig. B Fig. A

Reducing bushes

BZ1

BZ1

Size B Z1 Fig gms Code

16 x 12 14 2 A 1 33 109 41020 x 16 18 2 A 3 33 109 41225 x 20 22 3 A 5 33 109 41532 x 20 28 6 A 15 33 109 41832 x 25 25.5 3.5 A 10 33 109 41940 x 20 35 9 B 25 33 109 42140 x 25 33 7 B 24 33 109 42240 x 32 30 4 A 17 33 109 42350 x 25 33 13 B 29 33 109 42550 x 32 39.5 8.5 B 35 33 109 42650 x 40 36 5 A 32 33 109 42763 x 32 38 16 B 73 33 109 43063 x 40 38 11.5 B 75 33 109 43163 x 50 38 7 A 65 33 109 43275 x 50 44 13 B 120 33 109 43775 x 63 44 6 A 85 33 109 43890 x 50 51 20 B 200 33 109 44290 x 63 51 13 B 210 33 109 44390 x 75 51 7 A 150 33 109 444

110 x 50 64 31 B 320 33 109 448110 x 63 61 23 B 340 33 109 449110 x 75 61 17 B 360 33 109 450110 x 90 61 9 A 270 33 109 451125 x 110 69 8 A 285 33 109 459140 x 90 76 25 B 730 33 109 465140 x 110 76 17 A 645 33 109 466140 x 125 76 9.5 A 350 33 109 467160 x 90 86 35 B 1040 33 109 473160 x 110 86 24 B 945 33 109 474160 x 140 86 10 A 565 33 109 476200 x 160 110 21 B 109 33 109 487225 x 160 119 33 B 1840 33 109 495225 x 200 119 13 A 1380 33 109 496

*250 x 160 132 45 B 4250 33 109 497*250 x 200 132 25 A 3820 33 109 498*250 x 225 132 12 A 2230 33 109 499*280 x 225 147 27 B 4300 33 109 500*280 x 250 147 15 A 2500 33 109 501*315 x 225 165 45 B 8100 33 109 502*315 x 250 165 33 B 5080 33 109 503*315 x 280 165 18 A 4590 33 109 504

*10 bar rated.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945038

Reducers

B

d3

Z1

d1 d2

Sized3 x d2 x d1 B Z1 gms Code

16 x 12 30 4 7 33 114 41020 x 16 35 5 8 33 114 30525 x 20 x 16 38.5 8.5 9 33 114 41225 x 20 x 20 40.5 8.5 12 33 114 30632 x 25 x 20 46 11 16 33 114 41532 x 25 x 25 49 11 20 33 114 30740 x 32 x 20 52 14 23 33 114 41840 x 32 x 25 55 14 27 33 114 41940 x 32 x 32 58 14 34 33 114 30850 x 40 x 20 60 18 36 33 114 42150 x 40 x 25 63 18 40 33 114 42250 x 40 x 32 66 18 48 33 114 42350 x 40 x 40 70 18 55 33 114 30963 x 50 x 25 73 23 75 33 114 42563 x 50 x 32 76 23 80 33 114 42663 x 50 x 40 80 23 90 33 114 42763 x 50 x 50 85 23 110 33 114 31075 x 63 x 50 93 24 130 33 114 43275 x 63 x 63 100 24 175 33 114 31190 x 75 x 40 100 30 160 33 114 43690 x 75 x 50 105 30 185 33 114 43790 x 75 x 63 112 30 225 33 114 43890 x 75 x 75 118 30 255 33 114 312

110 x 90 x 50 119 37 260 33 114 442110 x 90 x 63 126 37 300 33 114 443110 x 90 x 75 132 37 345 33 114 444110 x 90 x 90 139 37 400 33 114 313160 x 110 186 – 1270 33 114 474

Elbows 45°

Z1

A

C

Size A C Z1 gms Code

12 17 16 3 5 33 119 30416 21 20 5 6 33 119 30520 28 21.5 5.5 20 33 119 30625 33 25 6 26 33 119 30732 41 29.5 7.5 45 33 119 30840 50 36.5 10.5 70 33 119 30950 61 42.5 11.5 120 33 119 31063 76 52 14 200 33 119 31175 90 61 17 320 33 119 31290 107 72.5 21.5 550 33 119 313

110 130 87 26 915 33 119 314125 147 100 31 1315 33 119 315140 163 110 34 1660 33 119 316160 192 124 38 3060 33 119 317

*200 230 156 48 4500 33 119 318*225 260 176 55 6400 33 119 319*250 286 189 58 7700 33 119 320*280 320 208 62 10460 33 119 321*315 359 230 66 15500 33 119 323

*10 bar rated.


Elbows 90°

A

Z1

C


12 17 20 8 4 33 115 30416 22 23 9 11 33 115 30520 26 28 12 15 33 115 30625 32 34 15 30 33 115 30732 40 41 19 50 33 115 30840 50 48 22 90 33 115 30950 61 58.5 27.5 160 33 115 31063 76 71.5 33.5 290 33 115 31175 91 85 41 450 33 115 31290 108 98.5 47.5 680 33 115 313

110 130 122 61 1180 33 115 314125 148 133 64 1650 33 115 315140 163 153 77 2080 33 115 316160 193 175 89 2980 33 115 317200 229 206 100 5360 33 115 318225 258 290.5 171.5 8700 33 115 319

*250 287 319 188 12480 33 115 320*280 325 357 210 17000 33 115 321*315 359 400 236 23370 33 115 323

*10 bar rated.

Bends 90°

Z1

C

A


20 27 56.5 40.5 35 33 118 30625 33 69 50 55 33 118 30732 41 87.5 65.5 100 33 118 30840 50 106.5 80.5 175 33 118 30950 61 131.5 100.5 280 33 118 31063 76 165 127 515 33 118 31175 94 194 150 1100 33 118 31290 112 229 178 1750 33 118 313

110 136 208 147 2280 33 118 314*160 189 293 207 5020 33 118 317

Tees 90° equal

C

Z1

BAZ1

Size A B C Z1 gms Code

12 16 39 20 8 6 33 122 30416 22 46 23 9 15 33 122 30520 27 54 27 11 25 33 122 30625 33 66 33 14 40 33 122 30732 40 80 40 18 65 33 122 30840 50 96 48 22 114 33 122 30950 61 116 58 27 185 33 122 31063 76 144 72 34 380 33 122 31175 91 169 84.5 40.5 605 33 122 31290 109 199 99.5 48.5 985 33 122 313

110 133 244 122 61 1760 33 122 314125 151 266 133 64 2430 33 122 315140 174 306 153 77 4150 33 122 316160 193 348 174 88 5250 33 122 317200 228 414 207 101 6810 33 122 318225 258 466 233 114 12680 33 122 319

*250 286 518 259 128 13250 33 122 320*280 319 580 290 144 17840 33 122 321*315 360 652 326 162 25300 33 122 323

*10 bar rated.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945040

‘Y’ pieces plain

B

A

Z2

Z1

C

Z3

Size A B C Z1 Z2 Z3 gms Code

20 28 68 45 7 36 29 40 33 418 30625 34 81 55 7 43 36 60 33 418 30732 41 97 66 9 53 44 105 33 418 30840 50 117 80 11 65 54 175 33 418 30950 60 139 96 12 77 65 255 33 418 31063 73 170 118 14 94 80 420 33 418 311

Caps plain

B

A

Size A B gms Code

12 17 15 3 33 140 30416 21 16 4 33 140 30520 28 23 9 33 140 30625 34 37 15 33 140 30732 41 31 25 33 140 30840 51 36 40 33 140 30950 62 43 60 33 140 31063 77 51 110 33 140 31175 91 59 190 33 140 31290 110 69 330 33 140 313

110 133 85 575 33 140 314160 189 173 2100 33 140 317

Socket unions

B

Z2Z1

A

Size A B Z1 Z2 gms Code

12 28 38 3 10 15 33 205 30416 33 41 3 10 20 33 205 30520 41 45 3 10 35 33 205 30625 50 51 3 10 60 33 205 30732 58 57 9 10 85 33 205 30840 72 67 10 12 150 33 205 30950 79 79 12 14 175 33 205 31063 98 98 14 18 320 33 205 31175 135 107 8 13 720 33 205 31290 157 115 7 4 980 33 205 313

110 183 138 8 7 1480 33 205 314

EPDM seal as standardFor FPM seal order by type 204


Cross

LZ1

E

Size E L Z1 gms Code

25 35 19 14 60 33 108 30732 43 22 18 105 33 108 30840 52 26 23 175 33 108 30950 64 31 27 265 33 108 31063 79 38 34 505 33 108 311

Tees 90° reducingA

D

Z1

C

Z1B

Size A B C D Z1 gms Code

25 x 25 x 20 33 66 30 28 14 37 33 124 41532 x 32 x 20 41 79 34 28 18 60 33 124 41832 x 32 x 25 41 79 37 34 18 65 33 124 41940 x 40 x 20 50 96 38 29 22 100 33 124 42140 x 40 x 25 50 96 41 34 22 100 33 124 42240 x 40 x 32 50 96 44 42 22 105 33 124 42350 x 50 x 20 61 116 43 30 27 160 33 124 42450 x 50 x 25 61 116 46 35 27 160 33 124 42550 x 50 x 32 61 116 49 42 27 165 33 124 42650 x 50 x 40 61 116 53 51 27 170 33 124 42763 x 63 x 25 76 143 53 36 34 290 33 124 42963 x 63 x 32 76 143 56 43 34 295 33 124 43063 x 63 x 40 76 143 60 52 34 300 33 124 43163 x 63 x 50 76 143 65 62 34 315 33 124 432

Imperial/metric socket adaptors

B

Z1

A


*1⁄2 x 20 27 35 3 12 33 345 102*3⁄4 x 25 33 41 3 22 33 345 103*1 x 32 41 47 3 44 33 345 104*11⁄4 x 40 50 55 2 65 33 345 105*11⁄2 x 50 61 65 4 125 33 345 106*2 x 63 76 79 5 210 33 345 107*3 x 90 108 107 6 438 33 345 109*4 x 110 131 128 4 852 33 345 110

*Sizes shown in inch n.b. designation.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945042

Female threaded adaptors BSP female thread reinforced

Z1

Z2

B

d1 d2 AT

Sized2 x d1 x T* A B Z1 Z2 gms Code

12 x 8 x 1⁄4 20 25 11 15 7 33 153 33016 x 12 x 3⁄8 24 28 11 16 10 33 153 33120 x 16 x 1⁄2 30 35 15 21 16 33 153 33325 x 20 x 3⁄4 38 39 16 22 28 33 153 33532 x 25 x 1 45 45 18 26 50 33 153 33740 x 32 x 11⁄4 56 54 21 31 80 33 153 33950 x 40 x 11⁄2 64 60 21 33 120 33 153 34163 x 50 x 2 78 72 25 41 210 33 153 34375 x 21⁄2 95 99 30 55 270 33 153 10890 x 3 110 114 33 63 410 33 153 109

110 x 4 130 134 39 73 595 33 153 110

*Thread size designation.

Male threaded adaptors BSP male thread

B

Z1

D

A(A/F)d2 d1

Sized2 x d1 x T* A B D Z1 gms Code

16 x 12 x 3⁄8 33 151 33120 x 16 x 3⁄8 22 34 11 20 6 33 151 33220 x 16 x 1⁄2 22 38 15 24 10 33 151 33325 x 20 x 1⁄2 28 41 15 25 12 33 151 33425 x 20 x 3⁄4 30 48 16 31 19 33 151 33532 x 25 x 1⁄2 34 45 15 26 15 33 151 35232 x 25 x 3⁄4 36 52 16 33 30 33 151 33632 x 25 x 1 36 55 19 36 32 33 151 33740 x 32 x 3⁄4 42 50 15 28 28 33 151 35340 x 32 x 1 42 53 19 31 34 33 151 33840 x 32 x 11⁄4 46 60 21 37 50 33 151 33950 x 40 x 1 52 58 19 32 50 33 151 35450 x 40 x 11⁄4 52 61 21 35 60 33 151 34050 x 40 x 11⁄2 52 61 21 35 70 33 151 34163 x 50 x 11⁄4 65 68 21 37 95 33 151 35563 x 50 x 11⁄2 65 66 21 35 105 33 151 34263 x 50 x 2 65 71 26 40 150 33 151 34363 x 75 x 11⁄2 75 76 21 38 125 33 151 35675 x 63 x 2 75 79 26 41 145 33 151 34590 x 75 x 2 95 93 26 49 275 33 151 34690 x 75 x 21⁄2 95 98 30 54 280 33 151 34775 x 90 x 3 95 100 34 56 300 33 151 357

110 x 90 x 3 110 113 34 62 390 33 151 34890 x 110 x 4 128 128 39 77 420 33 151 358

125 x 110 x 4 128 126 39 65 500 33 151 349

*Thread size designation.


Female composite unions PVC-U/Brass, BSP parallel female thread

Z1

A(A/F)

B

Z2

Size A B Z1 Z2 gms Code

16 x 3⁄8* 32 37 3 7 100 33 216 30520 x 1⁄2* 40 43 3 7 168 33 216 30625 x 3⁄4* 48 47 3 7 290 33 216 30732 x 1* 55 59 8 9 340 33 216 30840 x 11⁄4* 65 68 10 8 470 33 216 30950 x 11⁄2* 78 76 12 9 820 33 216 31063 x 2* 88 89 12 11 970 33 216 311

*Thread sizes designation. Brass retaining nut and EPDM rubber seal.

Male composite unions PVC-U/Brass, BSP taper male thread

B

Z1

A(A/F)


16 x 3⁄8* 32 48 3 108 33 217 30520 x 1⁄2* 40 54 3 179 33 217 30625 x 3⁄4* 48 74 3 320 33 217 30732 x 1* 55 86 8 420 33 217 30840 x 11⁄4* 65 94 10 620 33 217 30950 x 11⁄2* 78 108 12 1010 33 217 31063 x 2* 88 126 12 1250 33 217 311

*Thread sizes designation. Brass retaining nut and EPDM rubber seal.

Saddle clamps BSP female threaded reinforced

T

C

Z

DB

Size (DxT) B C Z gms Code

50 x 1 75 22 38 240 33 436 20863 x 1 82 22 46 400 33 436 21175 x 1 88 22 53 570 33 436 21490 x 11⁄2 95 31 61 970 33 436 219

110 x 11⁄2 105 31 70 1090 33 436 224160 x 2 116 38 100 1740 33 436 237200 x 2 135 38 119 2380 33 436 238225 x 11⁄2 150 31 132 3660 33 436 239225 x 2 150 37 132 3660 33 436 240

Tank connectors

B

D

A(A/F)F C

Size A B D E Z1 gms Code

25 x 1 53 60 19 26 17 58 33 235 307

32 x 11⁄4 63 66 22 28 19 90 33 235 308

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945044

Hose adaptors BSP male thread

L

HSize L H gms Code1⁄4 x 12 x 14 11.0 56 7 93 157 6003⁄8 x 16 x 18 11.4 58 14 93 157 6021⁄2 x 20 x 22 15.0 66 19 93 157 6053⁄4 x 25 x 27 16.3 81 30 93 157 6081 x 30 x 32 19.1 97 45 93 157 612

11⁄4 x 40 x 42 21.4 104 85 93 157 61611⁄2 x 50 x 52 21.4 111 120 93 157 6232 x 60 x 64 25.7 123 180 93 157 630

Hose adaptors BSP female thread

LH

Size L H gms Code1⁄2 x 12 x 14 14.0 56 15 93 156 6013⁄4 x 16 x 18 11.5 60 24 93 156 6031 x 20 x 22 11.0 67 35 93 156 606

11⁄4 x 25 x 27 14.0 81 55 93 156 60911⁄2 x 30 x 32 16.0 97 80 93 156 613

2 x 40 x 42 18.0 104 140 93 156 61621⁄4 x 50 x 52 17.5 111 200 93 156 62323⁄4 x 60 x 64 20.0 123 300 93 156 630

Hose adaptors spigot end

L

HSize L H gms Code

12 x 14 x 12 12 56 6 33 158 30416 x 18 x 16 14 60 12 33 158 30520 x 22 x 20 16 67 17 33 158 30625 x 27 x 25 19 81 26 33 158 30732 x 32 x 30 22 97 40 33 158 30840 x 42 x 40 26 104 78 33 158 30950 x 52 x 50 31 111 113 33 158 31063 x 64 x 60 38 123 170 33 158 311

Stub flanges serrated face

B

D

Z1

A


20 34 19.5 7 3.5 10 33 135 30625 41 22 7 3 16 33 135 30732 50 25 7 3 25 33 135 30840 61 29 8 3 40 33 135 30950 73 34 8 3 62 33 135 31063 90 41 9 3 105 33 135 31175 105 47 10 3 160 33 135 31290 125 56 10 5 275 33 135 313

110 150 65 12 4 445 33 135 314125 168 74 13 5 750 33 135 315140 188 81 14 5 790 33 135 316160 212 90.5 16 4.5 1140 33 135 317200* 254 111.5 18 5.5 1840 33 135 318225 273 124.5 25 5.5 1750 33 135 319250 306 139.5 20 8.5 2140 33 135 320280 327 161.5 32 14.5 3650 33 135 321315 377 181 32 16 4950 33 135 323


Flanges full face plain/drilled

A

Z1

DB

Drilled to DIN2501:Sheet 1:1972Size A B D Z1 gms Code

32 115 27 14 4.5 150 33 319 30840 140 31 15 4.5 230 33 319 30950 150 36 16 4.5 280 33 319 31063 163 43 18 4.5 390 33 319 31175 185 49 19 5 525 33 319 31290 200 58 20 7 710 33 319 313

110 220 69 22 8 955 33 319 314

Valve support plates galvanized mild steel

CM

L

EB

Drilled to DIN2501:Sheet 1:1972No.Size B C E L M N Holes gms Code

16 91 84 50 14 16 2 4 370 31 459 30520 97 86 49 14 16 2 4 640 31 459 30625 105 89 76 14 16 2 4 750 31 459 30732 114 96 77 14 12 2 4 860 31 459 30850 150 125 100 14 22 2 4 1480 31 459 31063 160 134 100 14 24 2 4 2100 31 459 31175 185 144 125 14 22 2 4 2500 31 459 31290 203 150 127 14 23 2 8 2660 31 459 313

110 214 160 150 14 22 3 8 2960 31 459 314N = No. of holes in base

Backing rings galvanized mild steel

B

A PC

D

Drilled to DIN2501:Sheet 1:1972(P) No.

Size A B C D P.C.D. Holes gms Code16 90 5 23 14 61 4 209 13 421 30520 95 6 28 14 65 4 275 13 421 30625 105 6 34 14 75 4 335 13 421 30732 115 6 42 14 85 4 394 13 421 30840 140 6 51 18 100 4 579 13 421 30950 150 6 62 18 110 4 641 13 421 31063 165 8 78 18 125 4 976 13 421 31175 185 8 92 18 145 4 1204 13 421 31290 200 8 110 18 160 8 1245 13 421 313

110 220 8 133 18 180 8 1383 13 421 314125 250 8 150 18 210 8 1840 13 421 315140 250 10 167 18 210 8 1969 13 421 316160 285 10 190 22 240 8 2537 13 421 317

†200* 340 10 235 22 295 8 3475 13 421 318†225 340 12 250 22 295 8 3633 13 421 319†250 395 20 282 22 350 12 8695 13 421 320†280 395 16 303 22 350 12 5747 13 421 321†315 445 20 355 22 400 12 8141 13 421 323

Drilled to ANSI Class 150(P) No.

Size A B C D P.C.D. Holes gms Code20 90 8 35 16 61 4 210 13 448 30625 100 8 44 16 70 4 260 13 448 30732 110 9 49 16 79 4 320 13 448 30840 118 8 58 16 90 4 360 13 448 30950 129 8 67 16 99 4 500 13 448 31063 154 10 78 19 121 4 860 13 448 31190 192 11 111 19 153 4 1270 13 448 313

110 230 11 138 19 190 8 1820 13 448 314

† DlN2501 PN10 Drilled for PN16 drilled use code 13 420 **** The 200mm stub flange supplied by Durapipe when used in conjunction with

200mm backing ring has a bolt circle diameter which matches 225mm drilling.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945046

Flat gaskets/stub flanges

B

A

EPDMSize A B gms Code16 29 3.0 2 13 411 30520 34 3.5 2 13 411 30625 41 3.5 3 13 411 30732 50 3.0 4 13 411 30840 60 3.0 4 13 411 30950 72 3.3 5 13 411 31063 90 4.0 10 13 411 31175 106 3.0 20 13 411 31290 125 3.1 30 13 411 313

110 150 4.0 40 13 411 314125 166 4.0 50 13 411 315140 180 4.0 60 13 411 316160 205 4.0 70 13 411 317200 253 4.0 120 13 411 318225 274 3.8 165 13 411 319250 306 4.0 170 13 431 320280 330 4.0 – 13 411 321315 379 4.2 – 13 411 322

O rings for socket unions

B

EPDM FPMSize B gms Code Code

12 2.7 0.4 13 209 304 13 211 30416 2.5 0.5 13 209 305 13 211 30520 3.4 1 13 209 306 13 211 30625 3.4 2 13 209 307 13 211 30732 3.4 3 13 209 308 13 211 30840 5.3 5 13 209 309 13 211 30950 5.3 6 13 209 310 13 211 31063 5.3 7 13 209 311 13 211 31175 5.3 8 13 209 312 13 211 31290 5.0 11 13 209 313 03 211 109

110 4.9 24 13 209 314 03 211 110

Cobra pipe clips

BG

C

A

D

Size A B C D G Bolt/Screw gms Code

*12 – 24 25 15 16 M4/3BA/No 8 5 13 434 304*16 – 35 25 17 16 M4/3BA/No 8 7 13 434 305*20 – 35 30 14 16 M5/1BA/No 10 8 13 434 306*25 – 35 35 16 17 M5/1BA/No 10 11 13 434 30732 65 45 40 17 17 M5/1BA/No 10 14 13 434 30840 75 65 45 20 20 M5/1BA/No 10 21 13 434 30950 85 50 50 22 21 M6/0BA/No 10 30 13 434 31063 102 60 60 19 21 M6/0BA/No 10 42 13 434 31175 122 70 70 27 31 M8 94 13 434 31290 148 80 90 39 31 M8 121 13 434 313

110 171 90 96 36 35 M8 184 13 434 314125 185 161 96 9 17 M8 237 13 424 315140 188 176 112 13 19 M8 252 13 424 316160 238 219 150 10 40 M8 330 13 424 317

*Clips 32mm and above are fitted with a pipe retaining strap. Bolts/screws not supplied.

Durapipe solvent cement and MEK cleaner

gms Code CodeLitres cement cleaner PVC-U cement MEK cleaner

0.5 500 500 03 462 395 03 463 3951.0 1100 – 03 462 396 –

Only Durapipe PVC-U solvent cement should be used for jointing ofPVC-U pipework systems.


VK double union ball valves manual - EPDM seals

SK single union ball valves plain EPDM seals

VT 3-way valves plain EPDM L Port

Position 1 Position 2 Position 3 Position 4 Operation 0º 90º 180º 270°



= flow

with metric series plain female ends for solvent welding

d DN PN L Z H E B C g Code

16 10 16 14 75 103 55 49 66 200 H0 VKE 30520 15 16 16 71 103 55 49 66 195 H0 VKE 30625 20 16 19 77 115 66 59 75 310 H0 VKE 30732 25 16 22 84 128 75 66 85 440 H0 VKE 30840 32 16 26 94 146 87 75 97 645 H0 VKE 30950 40 16 31 102 164 100 87 110 880 H0 VKE 31063 50 16 38 123 199 122 101 134 1490 H0 VKE 31175 65 10 44 147 235 154 124 235 2945 H0 VKE 10890 80 10 51 168 270 189 142 285 5110 H0 VKE 313110 100 10 61 186 308 221 166 335 7845 H0 VKE 314

d DN PN L Z H E B C g Code

16 10 16 14 54 82 53 50.0 65 150 H0 VXE 30520 15 16 16 50 82 53 50.0 65 145 H0 VXE 30625 20 16 19 53 91 62 58.0 76 220 H0 VXE 30732 25 16 22 59 103 71 65.0 85 315 H0 VXE 30840 32 16 26 68 120 84 76.0 100 505 H0 VXE 30950 40 16 31 77 139 98 85.5 112 725 H0 VXE 31063 50 16 38 98 174 117 103.0 137 1245 H0 VXE 31175 65 10 44 128 216 154 133.0 222 2600 H0 VXE 31290 80 10 51 142 244 189 154.0 270 4330 H0 VXE 313


VX double union ball valves manual - EPDM seals

d DN PN B C E L Z H B1 I1 I g Code

20 15 10 51 65 53 16 76 108 27.5 24 24 245 H0 VLE 30625 20 10 60 76 62 19 90 128 32.5 31 25 385 H0 VLE 30732 25 10 67 85 71 22 100 144 36.5 40 27 560 H0 VLE 30840 32 10 75 100 84 26 121 173 43.0 41 32 875 H0 VLE 30950 40 10 89 112 98 31 135 197 51.5 53 28 1290 H0 VLE 31063 50 10 105 137 117 38 167 243 59.5 58 35 2085 H0 VLE 311


d DN PN L L1 Z H E E1 B C g Code

20 15 16 16 16 60 92 55 28 49 66 145 H0 SKE 30625 20 16 19 19 71 109 66 36 58 75 240 H0 SKE 30732 25 16 22 22 74 118 75 42 66 85 325 H0 SKE 30840 32 16 26 26 81 133 87 53 76 97 505 H0 SKE 30950 40 16 31 35 86 152 100 61 86 110 680 H0 SKE 31063 50 16 38 40 105 183 122 76 100 134 1145 H0 SKE 311



Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945048

SR single union ball check valves plain ends - EPDM seals

VA air release valves plain ends - EPDM seals

UV/UT sediment strainers socket union ends - EPDM seals

d DN PN E L Z H g Code

20 15 16 55 16 86 102 110 H0 SRE 30625 20 16 66 19 105 124 205 H0 SRE 30732 25 16 75 22 127 149 310 H0 SRE 30840 32 16 87 26 146 172 475 H0 SRE 30950 40 16 100 31 156 187 660 H0 SRE 31063 50 16 120 38 186 224 1120 H0 SRE 311

Note - Also available with BS series plain female ends

with metric series end

with metric series plain male end for solvent welding

d DN PN E L L1 Z H g Code

20 15 16 55 16 18 87 103 105 H0 VAE 306

25 20 16 66 19 20 106 125 185 H0 VAE 307

32 25 16 75 22 24 128 150 280 H0 VAE 308

40 32 16 87 26 28 145 171 415 H0 VAE 309

50 40 16 100 31 34 156 187 570 H0 VAE 310

63 50 16 122 38 41 185 223 950 H0 VAE 311

d DN PN A B E L Z H K Fig. g CodeGrey Trans. max

20 15 16 16 125 72 55 16 103 135 - A 211 H0 UVE 306

25 20 16 16 145 84 66 19 120 158 - A 358 H0 UVE 307

32 25 16 16 165 95 75 22 132 176 - A 526 H0 UVE 308

40 32 16 10 190 111 87 26 155 207 - A 733 H0 UVE 309

50 40 16 10 210 120 100 31 181 243 - A 1095 H0 UVE 310

63 50 16 10 240 139 120 38 222 298 - A 1843 H0 UVE 311

HO UVE*** - Transparent PVC body

Grey or Transparentwith unionised metric series plain female ends for solvent welding



PR pressure relief valves EPDM seals

C

ZEG

B

A

D

F

d Z A B C D E F G kg Code

20 92 143 20.5 35 124 M6 25 12 0.7 H0 PRE 406

25 106 143 20.5 35 144 M6 25 12 0.7 H0 PRE 407

32 108 143 25 35 154 M6 25 12 0.7 H0 PRE 408

40 120 204 36 50 174 M8 44.5 16 1.5 H0 PRE 409

50 130 204 39.5 50 194 M8 44.5 16 1.5 H0 PRE 410

63 146 219 49 50 224 M8 44.5 16 2.4 H0 PRE 411

VM diaphragm valves manual - plain spigot ends EPDM

FK butterfly valves manual - FPM or EPDM seals

d DN PN B B1 H h H1 I J L g Code

20 15 10 95 26 124 12 90 25 M6 16 700 H0 VME 406

25 20 10 95 26 144 12 90 25 M6 19 700 H0 VME 407

32 25 10 95 26 154 12 90 25 M6 23 700 H0 VME 40840 32 10 126 40 174 18 115 44.5 M8 27 1500 H0 VME 40950 40 10 126 40 194 18 115 44.5 M8 32 1500 H0 VME 41063 50 10 148 40 224 18 140 44.5 M8 39 2400 H0 VME 41175 65 10 225 55 284 23 215 100 M12 44 7000 H0 VME 41290 80 10 225 55 300 23 215 100 M12 51 7000 H0 VME 413110 100 10 295 69 350 23 250 120 M12 - 10500 H0 VME 414

d DN PN B2 B3 C C1 g U Code

50 40 16 60 137 175 100 900 4 H0 FKE 10663 50 16 70 143 175 100 1080 4 H0 FKE 10775 65 10 80 164 272 110 1470 4 H0 FKE 10890 80 10 93 178 272 110 1870 8 H0 FKE 109110 100 10 107 192 272 110 2220 8 H0 FKE 110140 125 10 120 212 330 110 3100 8 H0 FKE 111160 150 10 134 225 330 110 3850 8 H0 FKE 112225 200 10 161 272 420 122 6750 8 H0 FKE 113

hand operated


Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945050

Pressure/Temperature Relationship1. Graph is based on an ambient temperature of 20°C.

2. For higher ambient temperatures decrease the working pressure by 5% for every 10°C above 20°Cambient.

3. Durapipe PVC-U systems should not be used at temperatures in excess of +60°C or below +5°C.

0.0

20 30 40 50 60

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

Temperature °C

Wor

king

Pre

ssur

e in

Bar

PVC-U P/T Relationships

PN16Class E

Class D

PN10Class C

Flow Calculations (see Flow Nomogram page 51) FlowCalculations for LiquidsPressure drop due to friction can be determined for practicalpurposes using the flow nomogram opposite.

The pressure drop at a given flow rate can be determined asfollows:

1. Obtain the internal diameter of the pipe to be used by referringto the dimension table right:

2. Mark this diameter on Scale A.

3. Mark the required flow rate in litres per second on Scale B.

4. Draw a straight line connecting the points on Scales A and Band extend this to Scales C and D.

5. The velocity of flow in metres per second is determined fromthe intersection with Scale C.

6. The frictional head loss in metres per 100 metres of pipe canthen be read off Scale D.

Imperial Class Class Class mm 16 BarD E 7

3⁄8 – – 10.3 – –1⁄2 – 17.8 14.2 20 16.73⁄4 – 22.7 19.5 25 20.91 – 29.0 26.0 32 26.8

11⁄4 – – 34.2 40 33.611⁄2 42.9 41.7 39.1 50 42.12 – 52.1 48.9 63 53.03 – 76.9 – – –4 – 98.9 – – –6 – 145.5 – – –

Durapipe PVC-U Design and Installation Guide


Flow Nomogram

15

20

30

40

50

60

70

80

90

100

150

200

250

300

350

400

500

25

35

0.01

0.02

0.05

0.1

0.2

0.30.40.5

1

2

345

20

304050

100

200

300400500

1000

2000

300040005000 300

200

100

500004000030000

20000

10000

500040003000

2000

1000

500400300

200

100

504030

20

10

543

2

1

m3/min.

0.05

0.01

0.1

0.15

0.2

0.3

0.4

0.5

1

1.5

2

3

4

5

10

15

20 Approx. values only

0.02

0.03

0.04

0.05

0.1

0.2

0.3

0.4

0.5

1

2

3

4

5

10

20

Hydraulic Gradientm/100m pipe

Flow Velocity(m/s)

Flow Rate

L/sec L/min

Internal Diameter(mm)

Diagram for water at 10°C

NOTE: For sizes not covered by Nomogram, please contact Technical Support Department

FittingsThe calculation of pressure drop in fittings is more complex butcalculations can be made for equivalent lengths of straight pipeusing the Formula E = F x D where:

E = the equivalent pipe length (metres)

F = the fittings constant (see table below)

D = the fitting internal diameter in mm.

To calculate the total pressure drop in the system, the equivalentstraight pipe lengths for fittings is then added to the total straightpipe length to obtain the total drop.

Fittings ConstantFitting

90° Elbow 0.0345° Elbow 0.0190° Tee – straight through 0.0190° Tee – side branch 0.0690° Bend 0.0145° Bend 0.01Reducing Bush (per size reduction) 0.15Butterfly Valves 0.13Diaphragm Valves 0.23Check Valves 0.05

These values are included as a guide to facilitate calculation ofoverall system performance and should not be used in isolation.

Design of Supports

Supports/BracketsThe hanger type of support does not normally provide lateralrestraint to the pipe and can encourage snaking. If hanger rods areused they should be made as rigid as possible and must allow freeaxial pipe movement.

All steel brackets in contact with the plastic system should be freeof sharp edges to avoid damage to the pipe.

Support CentresThe recommended distance between supports for pipes filled withwater is given in the table below. Where the contents have aspecific gravity greater than 1 the distance must be decreased bydividing the recommended centre distance by the specific gravity.

Size Support Supportmm/" Distance (m) Distance (m)

at 20°C at 50°C16mm/3⁄8" 0.8 0.520mm/1⁄2" 0.9 0.625mm/3⁄4" 1.0 0.732mm/1" 1.1 0.8

40mm/11⁄4" 1.2 0.950mm/11⁄2" 1.3 1.063mm/2" 1.4 1.1

75mm/21⁄2" 1.5 1.290mm/3" 1.6 1.3

110mm/4" 1.9 1.3160mm/6" 2.3 1.6

ClipsAny pipe clips used in conjunction with Durapipe PVC-U mustallow free axial pipe movement and afford lateral restraint. The Cobra pipe clips from Durapipe meet these requirements. A suitable alternative would be fabricated mild steel saddle clips,designed with a clearance between pipe and clip.

Pipe RoutingSystems installed above ground should be designed such that thereare sufficient changes in direction to accommodate expansion orcontraction. The support method described earlier will ensure thatthe pipework can move axially, without snaking. Utilize all available pipe flexibility. Do not place clips too close tochanges in direction.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945052


Calculating Expansion and Contraction

Temperature variations in a pipework system will increase ordecrease the length of each pipe. This is the result oftemperature changes in the fluid carried and also fromambient temperature variations.The rate of expansion or contraction of pipework is dependenton its length, its coefficient of expansion and the temperaturedifference.Increase/ decrease in pipe length is given by the formula:

Expansion = L x � x �T

where: L = length� = coefficient of linear expansion �T = temperature difference of the pipe

The coefficient of linear expansion for PVC-U = 7 x10-5/°C

Rule of thumb: PVC-U expands/contracts 0.7mm/ m per 10°Ctemperature change:

Example:What is the expansion/contraction of an insulated, 30m long, PVC-U Condenser water main, installed at 15°C,operating at a maximum temperature of 35°C and a minimumtemperature of 5°C?

Expansion:L = 30,000 mm � = 7 x 10-5

�T = 35 - 15 = 20°C

Expansion = 30,000 x 7 x 10-5 x 20°C= 42mm

Contraction:L = 30,000 mm � = 7 x 10-5

�T = 15 - 5 = 10°C

Contraction = 30,000mm x 7 x 10-5 x 10°C= 21mm

Hence the system must be designed, using expansion loops,the natural flexibility of pipe, or expansion bellows, to cater fora total differential movement of 63mm with an expansion of42mm and a contraction of 21mm.

Catering for pipe movementSystems installed above ground should be designed to ensure thatthere are sufficient changes in direction to accommodate expansionand contraction. The support method described later will ensure thatthe pipework can move axially without snaking. If sufficient changes in direction are not available within the designof the system, alternative methods of catering for pipe movementcan be considered such as expansion loops or flexible rubberbellows.

Expansion LoopsThe length of unrestrained pipe (free leg length) required toaccommodate expansion can be calculated from the graph opposite.

Pipemovement

Fixed point (anchor point)

Pipe clip

Pipe freeto flex

Anchor Point

A

B

?

30m

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945054

500

400

300

200

1009080706050

40

30

20

Example

15.15

1098765

4

3

2

0.1 0.2 0.3 0.4 0.5 0.6 0.8 1.0 1.2 1.5 2.0 2.5 3.0

H (m)

L (m

m)

2

3⁄8″ 16mm

1⁄2″ 20mm

3⁄4″ 25mm

11⁄4″ 40mm

11⁄2″ 50mm

2″ 63mm

3″ 90mm

4″ 110mm

6″ 160mm

8″ 225mm

10″ 250mm

12″ 315mm

1″ 32mm

H⁄2

L2

H

H⁄2 max

L2

Example:Calculate the size of expansion loop required for a 90mm diameter pipe expanding 42mm andcontracting 21mm:Based on the worst case ie. 42mm expansion, �L = 21mm

2

Draw a horizontal line from the vertical section to meet the 90mm pipe gradient line. Drop a perpendicular from the intersection point to the horizontal scale. The figure obtained isthe free leg length of the loop required.Hence, in this instance a loop measuring 1200mm long x 600mm wide will cater for ±42mmmovement i.e. the loop will cater for both the expansion and contraction of the pipe.


Buried PipesRecommendations covering essential requirements for installationsbelow ground may be summarised as follows:In general, trenches should not be less than a metre deep. Trenchesshould be straight sided, approximately 300mm wider than the pipediameter to allow proper consolidation of packing materials.Trench bottoms should be as level as is practical.Large pieces of rock, debris and sharp objects should be removed.Alternatively gravel can be laid approximately 100mm deep on thefloor of the trench. (Sand may be used but subterranean water isliable to wash sand away and leave the pipe unsupported.)If pipes are jointed above ground, they should remain undisturbed for2 hours before being lowered into the trench.After laying, pipes should be covered with gravel or similar materialto a depth of 100mm above the crown of the pipe. The gravel shouldbe extended sideways to both trench walls and compacted. Thisshould be done prior to testing, with joints left exposed.Care should be taken to ensure that sharp objects, stones, etc, areprevented from falling into the trench before covering the pipe.After pressure testing, joints should be covered with gravel or similarmaterial, and back filling completed.A section of pipe installed below ground to the aboverecommendations is shown in the illustration.

Anchor BlocksWhen rubber ring joints are used it is necessary to provide concreteanchor blocks at all sudden changes in direction such as elbows,bends, tees etc. This is necessary to withstand the forces generatedby system pressurisation.For greater detail, users in the U.K. are recommended to study theCode of Practice CP 312 published by the Pipe and Fittings Group ofthe British Standards Institute covering installations above and belowground.

Pressure SurgesDurapipe PVC-U pipework can withstand pressure surges within thelimitations detailed within CP312 Part 2:1973 and its amendmentdated 1977.On no account should pressure surges be allowed to exceed themaximum continuous working pressure calculated using the graph onpage 51.

100mm

100mm

Expansion BellowsAxial expansion bellows may also be used in place of utilising thenatural flexibility of the PVC-U. These must be of a suitable designto ensure correct operation with PVC-U pipework. Contact ourTechnical Support Department for further information.

Pipe AnchorsThe direction of pipe movement can be controlled by the use ofanchor points at strategic positions. There are a number of methodsof securely anchoring plastic pipes, some of which are detailedbelow. However it should be noted that tight fitting pipe supportsshould not be used since damage to the pipe could occur.

Construction of Typical Anchor Points

1. Small Bore (up to 4" Pipework)

2. Larger pipe (above 4" Pipework)

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945056

Support of heavy equipmentLarge valves, strainers and other heavy equipment should alwaysbe independently supported to prevent undue loading onto thePVC-U system. Durapipe valve support plates have been designedfor this purpose and may be used in place of flange backing rings.

Pipe contents identificationDo not put self-adhesive labels directly on to pipe surfaces as thismay cause stress cracking. It is recommended that some sort ofbarrier, such as aluminium foil, is placed between pipe andidentification label.

Warning:• Thermal Insulation and Trace Heating

Whilst Durapipe PVC-U piping systems have low thermalconductivity, situations may arise when trace heating and/orthermal insulation will be required.Some insulation products can contain substances capable ofhaving a detrimental effect on thermoplastic pipework. It isrecommended therefore that suitability be checked with Durapipeprior to use. Recommended insulation - A list of some of the common types ofinsulation materials known to be suitable with PVC-U pipeworkare as follows;Fibre wool, such as ‘Rockwool’Armaflex Class 1 HTPhenolic foamPolystyreneNote - the above list is not exclusive – please contact ourTechnical Support Department if further assistance is required.

Certain foam rubbers and adhesives used in conjunction withfoam rubber insulation may be detrimental. We do not, therefore,recommend that insulation be bonded to the pipework.Adhesives should only be used to bond adjacent edges together.Thermoplastic pipework can be damaged by plasticisers used inthe outer coverings on some heating tapes. Tapes sheathed inplasticised PVC must be avoided, unless specifically approved byus. (This comment also applies to any tapes, adhesives, or othersubstances used to secure the heating tape to the pipework.)Recommended heating tapes - The selection of heating tapeswith silicone rubber, woven wire, or woven polyester outersheaths will eliminate the risk of plasticiser migration. Thesetapes are therefore preferred for use on thermoplastic systems.

• Intumescent Mastic and Mastic SealantsCertain mastic sealants are formulated with phthalates.Phthalates are known to be extremely aggressive toward PVC-Umaterials, and therefore confirmation of the suitability of anymastic sealant should be determined before being used inconjunction with PVC-U pipework.

• Pipe ClipsIt is important that the composition of pipe clips and their liningsdo not include substances which might have a detrimental effectupon the PVC-U pipe. Please check for suitability before use.

We strongly recommend the use of Durapipe Cobra clips for pipesizes up to and including 160mm OD / 6”NB, wherevercircumstances allow.

• Contact with Synthetic OilsSome synthetic oils are unsuitable for use with thermoplasticpipe systems. The main types of synthetic oils identified as beingincompatible with thermoplastic pipe systems includes Esters,Polyalkylene Glycols, and Organic Phosphates.

It should be noted that some metal coil manufacturers utilisethese oils in their manufacturing process and that some residuecan remain within the coil after production.

• Freezing ConditionsPrecautions should be taken to prevent contents freezing, as thiscan cause pipework to split.

Additional Important Information


Durapipe PVC-U Jointing Guide (up to 8"/225mm)Solvent Cement WeldingDurapipe PVC-U pipes and matched fittings are designed for aninterference fit. Although Durapipe PVC-U solvent cement has goodgap filling properties no attempt should be made to increase theclearance between pipes and fittings by excessive abrading.Solvent cement welding offers a simple and quick means ofconstructing high integrity leak-free joints. Correctly made joints arestronger than either pipe or fitting.The solvent cement operates by chemically softening the outside ofthe pipe and the inside of the fitting. Joint integrity is greatlyreduced if these surfaces are not absolutely clean and properlyprepared.Durapipe PVC-U solvent cement must be used.The procedure detailed below must be followed.

Procedure1. The pipe must be cut clean and square. A suitable wheel cutter

will eliminate swarf. Alternatively a carpenters saw may be used, however this does create dust which may enter the system.

2. File a chamfer, approximately 3mm x 45°. This prevents thesolvent cement layer being scraped from the surface of thefitting when the joint is assembled.

3. Mark the pipe a known distance from the end and clear of thearea to be abraded. This should be used to check the pipepenetration into the socket after assembly.

4. Thoroughly abrade the end of the pipe over a length equal tothe depth of the fitting socket, using clean coarse emery cloth.

5. Thoroughly abrade the socket of the fitting.

6. Clean thoroughly the abraded surfaces of pipe and fittings.using a clean, lint free cloth or paper towel, moistened withMEK cleaner.

7. Remove the lid from the Durapipe PVC-U solvent cement. Do not stir.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945058

8. Using a clean brush, approximately half as wide as the pipe tobe jointed (see note 2), apply cement to the pipe and fittingusing longitudinal strokes. The abraded areas should becompletely covered with cement. The amount required will varywith pipe diameter and fit between pipe and fitting but shouldbe such in all cases that the cement is still liquid (to allow surfaces to slide) when pipe and fitting are assembled.It is important to apply cement quickly, to enable assemblywithout excessive force being required.

9. Immediately after application of cement, push pipe fully home into the fitting. Do not twist. Hold the pipe and the fitting fortimes varying from a few seconds on sizes 3⁄8" or 16mm to1 minute on sizes 8" or 225mm and above. The slight tapermoulded into the fitting may otherwise cause it to slide off thepipe with consequent loss of joint strength.Application of the correct amount of cement will result in a neatbead of cement at the edge of the fitting and at the edge of thepipe. Excessive deposits inside the fittings must be avoided asthese can weaken the wall, particularly on small sizes.When working under cold conditions make sure the joints arefree from frost and moisture and allow extra curing time tocompensate for the lower temperature.

10. Wipe off excess cement from the outside of the joint.

11. Replace lids on tins.

12. Clean brush in MEK cleaner.

Note:1. The integrity of Durapipe PVC-U systems may be affected

if Durapipe PVC-U solvent cement is not used. Durapipe UK disclaims responsibility for any Durapipe PVC-Usystem constructed with any other cements or not fabricated inaccordance with the instructions contained herein.

2. On sizes 6" or 160mm and above use 3" wide brushes and 1 litre tins of cement.

3. To achieve the correct speed of application on sizes 4" or125mm and above, cement should be applied simultaneouslyto pipe and fitting, by two people.


3. File a lead chamfer (5-10mm x 45°) on the end of the pipe.This prevents cement being scraped from the surface of thefitting during joint assembly.

4. Measure the socket depth of the fitting to be cemented.

5. Using a pencil, mark the end of the pipe at a distance equal tothe fitting socket depth plus 25mm. This enables a visual checkto be made that the pipe is fully inserted into the fitting.

Durapipe PVC-U Jointing Guide (for 10"/250mm and 12"/315mm)The skill required to make perfect solvent cement welded jointsincreases in proportion to pipework diameter. The larger thediameter of the pipework, the more skill is required to ensure asuccessful joint.

Installing large bore product successfully requires a minimum oftwo people due to increased difficulty in manipulating the product.

Durapipe solvent cement must be used.

Equipment required• Sharp wood saw or suitable cutting tool• Tape measure and pencil• Lint free cloth/industrial paper towel• Two 75mm brushes• Coarse file• Durapipe MEK cleaner• 1 litre tin(s) of Durapipe PVC-U solvent cement

Read the instructions for use and labels on PVC-U solventcement and MEK cleaner. Always follow all safety instructions -they are for your protection.

Procedure1. Measure and cut pipe to length ensuring that the ends are

cut square.

2. De-burr and remove any remaining swarf.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945060

6. Offer the socket fitting to the end of the pipe to obtain a feel forthe clearance gap between pipe and fitting. Do not fully insert atthis stage. Pipe should comfortably enter the socket between 1/4and 1/3 of socket depth.

7. Clean all of the surfaces thoroughly, using a clean paper towel orlint-free cloth soaked with Durapipe MEK cleaner. Oncecompleted, prepared surfaces should have a uniform, shinyappearance.

8. Remove the lid of the Durapipe PVC-U solvent cement. Do not stir.

9. Two people, each using a clean 75mm brush should then worksimultaneously in order to apply liberal coatings of DurapipePVC-U solvent cement to the prepared surfaces of both pipe andfitting.

Use longitudinal brush strokes to achieve uniform application ofcement. Work quickly to apply liberal coatings to both surfaces.

10. Immediately after application of the cement, and with thecement still liquid on both surfaces, push the pipe fully homeinto the socket of the fitting. Take care not to twist either thepipe or the fitting when pushing them home.


11. Note: The fitting may try to slide off the pipe. In order toensure that this does not happen you should hold in place forapproximately two minutes.

12. Any excess cement should then be wiped off the joint using aclean paper towel. Replace lids of solvent cement and DurapipeMEK cleaner when not in use in order to avoid evaporation andspillage. When not in use, brushes should stand in Durapipe MEK cleaner. When joints have been completed the brushesshould be cleaned thoroughly using Durapipe MEK cleaner.

13. Using the pencil mark previously made on the pipe (see Step 5) ensure that the pipe is fully inserted into thesocket.

CAUTION• DO NOT joint in the rain or wet conditions• DO NOT use dirty brushes• DO NOT use dirty or oily cleaning cloths• DO NOT use the same brushes for different cements• DO NOT dilute or decant Durapipe PVC-U solvent

cement• Follow safety instructions on Durapipe solvent

cement and MEK cleaner containers

The completed joint should not be handled or subjectedto stresses for a period of 4 hours from assembly.Allow a minimum joint curing period of at least 48 hoursat 20°C prior to pressurisation. Please note that curingtimes need to be extended when working in colderconditions.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945062

Notes1. The integrity of Durapipe PVC-U systems may be affected

if Durapipe PVC-U solvent cement is not used. Durapipe UK disclaims responsibility for any Durapipe PVC-Usystem constructed with any other cements or not fabricated inaccordance with the instructions contained herein.

2. On sizes 6" or 160mm and above use 3" wide brushes and 1 litre tins of cement.

3. To achieve the correct speed of application on sizes 4" or125mm and above, cement should be applied simultaneouslyto pipe and fitting, by two people.

An indication of the number of joints likely to be made per litre ofDurapipe PVC-U solvent cement is as follows:

Drying TimesThe drying times will vary with fit, amount of solvent cementapplied, ambient temperature and working pressure. It isrecommended that, wherever possible, joints of sizes up to8"/225mm are allowed to dry for at least 24 hours. Sizes 10" and12"/250mm and 315mm require a minimum of 48 hours. Theseguidelines are based on an ambient temperature of between 10°Cto 40°C. Longer drying times will be required at lower ambienttemperatures.

It is recognised that there will be occasions when the system willneed to be put into service within a few hours of being made. Arough but safe working guide where the ambient temperature isbetween 10°C to 40°C and the contents temperature does notexceed 20°C is as follows:

PrecautionsSolvent cement and cleaners are hazardous, flammable materials.Please refer to the safety Data Sheet for Durapipe PVC-U SolventCement and Cleaner, for details on safety requirements.Do not use near naked flames and avoid smoking in the workingarea – Durapipe PVC-U solvent cement is highly flammable.Do not use cements or cleaners in confined spaces. Concentrated vapours may cause dizziness.Use a shelter to keep jointing surfaces dry in wet weather.

Size Joints per litremm imperial PVC-U

12 - 32 3⁄8 - 1 30040 - 63 11⁄4 - 2 12075 - 90 3 50

110 - 125 4 30140 - 160 6 15200 - 225 8 8280 - 315 10 - 12 3

Size Range Drying time

Up to 4" / Up to 125mm 1.0 hour / bar

5" & 6" / 140mm & 160mm 1.5 hours / bar

8" / 200mm & 225mm 2.0 hours / bar

10 & 12" / 250mm & 315mm 30 hours minimum

Note - Minimum drying period should never be less than 1 hour


Branch Connections - Reduced BoreReduced branch connections can be made as follows:

Imperial range:Bushed equal tees or Y pieces, solvent cemented saddles.

Metric range:Bushed equal tees, Y pieces or bolt-on saddles.

Saddles permit branch connections to be made with the main pipein situ. The following procedure must be followed carefully:

1. Drill hole in pipe wall to suit the connection. The size of holeand cutter to be used for each size of saddle is indicated below:

Pipe size Hole diameter Cutter size(Imperial) (mm) (Imperial)

2 48 17/8

3 61 23/8

4 74 27/8

6 74 27/8

2. Mark out the area covered by the saddle on the pipe.

3. Clean surfaces with MEK cleaner.

4. Feed on to pipe two worm drive (Jubilee) clips which willclamp the saddle during fitting. These should be placed eitherside of the socket on the saddles. Apply cement to pipe areaand saddle. It is important to apply cement quickly.

5. Position saddle immediately, ensuring that spigot locates in hole in pipe wall. Clamp in place using worm drive clipswithout delay.

6. Wipe off any excess cement.

7. Replace lids on containers. 8. Clean brush with MEK cleaner.

Important:1. See page 62 for details of drying times. Allow 24 hours before

removing straps.2. On no account should a branch tee be constructed by drilling

through the wall of a pipe and/or fitting and attempting tosolvent weld a smaller fitting into the hole.

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945064

The Use of Bushes and Reducers

Example in the use of reducing bushes

The use of reducersAll fittings have female ends, dimensionally controlled for coldfusion jointing. In addition the reducers are provided with anadditional controlled outside diameter at the large end. They cantherefore be used as male or female components as shown.

Reducing bushesReducing bushes offer a neat and simple method of reducingsocket size in the minimum of space.Care must be taken to prepare properly all jointing surfaces asrecommended earlier, with the end of the bush being chamfered(unless a moulded chamfer is included).

Threaded Connections

A range of plain/threaded and threaded/unthreaded fittings isavailable, with male and female BSP threads. Some have plasticthread forms, eg. sockets, nipples. male and female adaptors.Some have metal threads, eg. composite unions.

Plastic threaded fittings in the imperial range have a pressurerating of Class D up to 2" and Class C for 3" and 4". Imperialcomposite unions are Class E.

Plastic threaded fittings and composite unions in the metric rangehave a pressure rating of PN10.

If it is required to cut a thread onto Durapipe PVC-U pipe use asharp die especially reserved for plastic pipes and cut full threaddepth without lubricant in one operation.

This should only be attempted on pipe sizes up to 2" n.b. Class 7pipe must be used. Pipes from the Durapipe PVC-U millimetrerange are not suitable for threading.

Assembly should be carried out by hand with final tightening by astrap wrench, if necessary.

Extra care must be taken not to over tighten or damage the thread.Pipe wrenches must never be used.

Male threaded fittings in the metric system are parallel, and cannotbe connected to taper fittings in the imperial system.

PTFE tape should be wound onto male threads prior to jointing toensure a satisfactory seal.

WARNINGAnaerobic adhesive thread sealants e.g. Loctite 542, 572 canchemically attack PVC-U and must not be used. We recommendthe use of PTFE tape as shown.


Flange Bolting ProcedureThe following procedure is recommended for installing DurapipePVC-U flanges:1. Inspect flange faces and ensure that they are clean and

undamaged.2. Check that the correct backing ring and rubber gaskets have

been supplied. Durapipe supplies a matched system of flangesand backing rings - do not interchange Metric and Imperialcomponents.

3. Loosely assemble flanges. Ensure that flanges and bolt holesalign and that the flange faces are parallel. Ensure that thegasket is correctly positioned between the flanges.

4. Ensure that the appropriate sized washer are placed under bothbolt heads and nuts.

5. Tighten the nuts and bolts in a diagonally opposite sequence(see below) to ensure even loading around the flange to avoiddistortion. It is recommended that the nuts and bolts betightened as uniformly as possible progressively from a fingertight start.

6. Repeat as necessary until recommended torque value at all boltsis achieved.

1

2

3 4

5

67

8

1

2

3 4

5

6

7

8

11

912

10

1

2

3 4

Connections for InstrumentationInstrumentation connections can be made by drilling through pipeand socket where the material is at its thickest and tapping thehole to receive a threaded fitting, as shown below:

Pipe size Size of connection

16mm-63mm/3⁄8"-2" Use tees, reducing bushes and threaded fittings

75mm-110mm/21⁄2"-4" Max. tapping 1⁄2" BSP.

125mm-140mm/5" Max. tapping 3⁄4" BSP.

160mm & above/6" & above Max. tapping 1 BSP.

Such connections, if correctly drilled and tapped with a full threadform, will be limited to Class C pressures.

Instrument connection

Connections – Plastics to MetalThere are several recommended methods of connecting metal andplastic systems.

Composite unions

Flanges

Male threaded fittings

Female threaded fittingsPlastics expand or contract far more than metals for any givenchange in temperature. The practice of connecting plastic threadedfittings to metal threads is not recommended where the joint islikely to experience a temperature change of more than ±5°C,otherwise leaks may occur. In such situations the PVC-U/brasscomposite unions must be used.

Flanged JointsFull face flanges are available from 1⁄2" to 6" and 25mm to 110mm.Stub flanges are available from 2" to 12" and in metric sizes from20mm to 315mm.The correct galvanised mild steel backing ring and rubber gasketmust be used with both types.

Size Torque16 1520 1525 1532 1540 2050 3063 3575 4090 40110 40125 50140 50160 60200 70225 70250 80315 100

Recommended Torque Values (Nm)

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945066

Handling and StorageThe high impact strength of Durapipe PVC-U systems provides someprotection against damage but care should be taken at all stages ofhandling, transportation and storage.

Pipe must be transported by a suitable vehicle and properly loadedand unloaded, e.g., wherever possible moved by hand or mechanicallifting equipment. It must not be dragged across the ground.

The storage should be flat, level and free from sharp stones.

LengthsPipe lengths stored individually should be stacked in a pyramid notmore than one metre high, with the bottom layer fully restrained bywedges. Where possible, the bottom layer of pipes should be laid ontimber battens at one-metre centres. On site, pipes may be laid outindividually in strings. (Where appropriate, protective barriers shouldbe placed with adequate warning signs and lamps.)

BundlesBundled packs of pipe should be stored on clear, level ground withthe battens supported from the outside by timbers or concreteblocks. For safety, bundled packs should not be stacked more thanthree metres high.

Smaller pipes may be nested inside larger pipes. Side bracing shouldbe provided to prevent stack collapse.

Similar precautions should be taken with fittings and these shouldbe kept in protective wrappings until required for use.

Health and Safety at Work Act and COSHH RegulationsAttention is drawn to the requirements in the U.K. of this Act and tothe 1988 Control of Substances Hazardous to Health (COSHH)Regulations. Advice on care to be taken in handling and storage ofDurapipe UK products is available from Durapipe Technical SupportDepartment. Durapipe UK cannot accept responsibility for accidentsarising from the misuse of its products because of bad installation orincorrect application.

General Information


Imperial/Metric Pipe Dimensional Comparison Tables

Metric System Imperial System

Designated size(outside diameter) Nominal bore

(mm) (mm)

12 816 1020 1525 2032 2540 3250 4063 5075 6590 80110 100125 110140 125160 150200 175225 200250 250280 250315 300

Metric size pipe Inch size pipe

Class D 12 bar

Nominalbore

(designateddimension

only)

Class E15bar Class C 9 bar

Outsidediameter

(controlleddimension

only)

Outsidediameter

(controlled anddesignateddimension)

Nominalbore(n.b.)

16 bar10 bar

6 bar

Class B 6 bar

The change to the use of the metric system of units and theadoption of metric standards, has been a slow and often confusingprocess. Although scientific and educational establishments haveadopted metrication in full, many areas of industry and commercehave not. The pipework industry is no exception, with pipe stillbeing produced in both imperial and metric (millimetre) sizes.

Compromises such as designating imperial pipe in millimetres(usually referred to as a soft metric conversion) only serves toconfuse the situation further and should be avoided.

Durapipe produces both imperial and metric systems. Tabulated below is a comparison of imperial sized pipe conformingdimensionally to the sizes listed in BS3505 and BS5391 andmetric sized pipe conforming dimensionally to BS5556. They arecompletely different and can only be joined together by usingflanges or adaptors. The exception to this is the 21⁄2" and 5" sizes,which coincide exactly with the 75mm and 140mm metric sizes.

These are only available with metric pressure ratings and aremarked 75mm and 140mm respectively. The systems are alsodesignated differently, the imperial system relates to nominal bore;the metric system relates to the outside diameter. Both systems areproduced with the outside diameter as the controlled dimension.This enables the same fitting of any particular size to be used inconjunction with all classes of pipe.

Threaded systemsThe outside diameter of the imperial size pipe conforms to theBritish Standard Pipe Thread (BSP Thread) requirements, althoughonly ‘thick’ wall pipe, designated ‘threading quality’ (Class 7)should be threaded. Metric pipe is not produced with an outsidediameter compatible to BSP Thread requirements.

Designated size(Nominal bore) Outside diameter

(imperial) (mm) (mm)

– – –3⁄8 10 17.11⁄2 15 21.43⁄4 20 26.71 25 33.611⁄4 32 42.211⁄2 40 48.32 50 60.321⁄2 65 75.23 75 88.94 100 114.3– – –5 125 140.26 150 168.3

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945068

Product SpecificationIMPERIAL

DURAPIPE PVC-U PIPESIn accordance with the dimensional and testing requirements of BS 3505 1986, Third Party Approved with British Standard KitemarkLicence.

DURAPIPE PVC-U FITTINGSIn accordance with the dimensional and testing requirements of BS4346 Part 1 1969, Third Party Approved with British StandardKitemark Licence.

MATCHED SYSTEMThe PVC-U products shall be from a single manufacturer to ensurecomplete integrity, quality and compatibility between pipes, fittings andvalves. Manufacturers warranties may be compromised if a system isinstalled with materials from various manufacturers. Where this is notpossible then any alternative products should be confirmed as being atleast equivalent to that which is normally supplied.

QUALITY SYSTEMPipes, fittings and valves shall be manufactured in an environment,which operates a Quality Assurance System assessed to ISO 9001.

ENVIRONMENTAL SYSTEMThe manufacturer of pipes, fittings and valves shall be able todemonstrate compliance with applicable environmental legislation andproducts shall be manufactured in an environment where documentedperformance reviews are undertaken and an Environmental ManagementSystem is successfully assessed to ISO 14001.

DRINKING WATER/ APPROVAL FOR USE IN CONTACTWithin private property boundaries all PVC-U pipes, fittings and solvent

cement shall be listed in the Water Fittings and Materials Directory toshow compliance with the requirements of the United Kingdom WaterRegulations Advisory Service.In any situation which could result in the PVC-U pipes, fittings andsolvent cement coming into contact with water which is intended forhuman consumption these shall be in accordance with the requirementsof BS 6920 Part 1.Copies of certification of compliance with these approvals must beavailable for inspection.

THIRD PARTY APPROVALSThe manufacturer shall have the following Third Party Approvals:BRITISH STANDARD KITEMARK LICENCEKM06218 for solvent cement to BS 4346 Part 3 1982WRAS WATER REGULATIONS ADVISORY SCHEME9902024 for Metric pipes & fittings (1100)0201505 for Durapipe solvent cement (5560)

COLOUR/MATERIAL/FOOD CONTACT APPROVALColoured dark-grey all PVC-U materials shall conform to the ECrequirements for vinyl chloride monomer (VCM), and the requirementsof the World Health Organisation for potable water transportation.

DESIGN LIFEDurapipe pipes, fittings and valves are designed to operate continuouslyfor 50 years at their maximum rated pressure at a working temperatureof 20°C.

CHEMICAL SUITABILITY The manufacturer shall publish detailed chemical resistance data toenable the suitability of the PVC-U material, seals, and gaskets to bedetermined by designers and specifiers.The manufacturer shall also employ a qualified and experienced Chemistand provide a free-of-charge advisory service for assessing the suitabilityof its PVC-U material, seals, and gaskets.

DESIGN & INSTALLATION SPECIFICATIONThe installation must be carried out by competent persons. The contractor shall be required to provide technical documentationrelating to the manufacturers recommended Design and Installationprocedures. The manufacturer shall publish Design and Installationrecommendations, and shall also provide a free-of-charge trainingservice for designers and installers, with appropriate writtenconfirmation of attendance.

DURAPIPE PVC-U BALL VALVESTrue union design, end load resistant with full pressure and shockresistant anti blow out device which conforms to design and endurancetesting requirements of DIN 3441 Part 1, and DIN 3230 Part 3 LeakRate One (Water and Air). Drop Tight and Bubble Tight testing have been satisfactorily completed. In addition, the following testing has been successfully conducted:Hydrostatic Shell Test 1.5 x Maximum Working Pressure.Seat Test 1.1 x Maximum Working Pressure.PRESSURE RATINGUp to size 2" – PN16 at 20°C21/2" to 4" - PN10 at 20°CSEATS AND SEALSSeats: Will be PTFE material fitted with O ring compensators. Seals: Will be standard size O ring type for ease of replacement, inEPDM or FPM material.END CONNECTIONSPlain socket ends, or BSP threaded.ACTUATIONOptions: Electric or pneumatic.

DURAPIPE PVC-U MULTIPORT BALL VALVESTrue union design. Options of ‘L’ or ‘T’ port configuration.The following testing will have been successfully completed:Drop Tight and Bubble Tight Test.Hydrostatic Shell Test 1.5 x maximum recommended pressure.Seat Test 1.1 x maximum working pressure.PRESSURE RATING1/2" to 2" – PN 10 at 20°C.SEATS AND SEALSSeats: Will be PTFE material fitted with O ring compensators. Seals: Will be standard size O ring type for ease of replacement, inEPDM or FPM material.END CONNECTIONSPlain socket ends or BSP threaded.

DURAPIPE PVC-U DIAPHRAGM VALVESWill be equipped with a maintenance free hand wheel actuator withspindle extension to indicate the position of the valve open or closed.The body retaining bolts will be fixed from the underside, to provide acrevice free outer surface to prevent accumulation of debris or risk ofcorrosion of exposed steel bolts from chemical spillage.Valves will have been hydrostatically pressure tested to the requirementsBS 4346 Part 1 1969, BS 5156, ISO 7508 and DIN 3230 Part 3 LeakRate OnePRESSURE RATING1/2" to 4" – PN10 at 20°CDIAGPHRAGM TYPEChoice of EPDM, FPM or PTFE will be available.END CONNECTIONThese may be plain spigot ends or flanged.ACTUATIONOptions – Pneumatic

DURAPIPE PVC-U BALL CHECK VALVESThese shall be single union with plain socket or BSP threaded end. PRESSURE RATING1/2" to 3" – PN10 at 20°C.SEALSSeals: Will be EPDM or FPM material.

DURAPIPE BUTTERFLY VALVESReinforced Polypropylene body, fully lined, with PP disc.Full flanged design, with oval holes/inserts to suit various standardflange drillings.Lever operated, with 10 x 10° position stops, and locking device.PRESSURE RATING11/2" to 10" – PN10 at 20°C12" – PN8 at 20°CPRIMARY LINERAvailable in EPDM, FPM, or NBRACTUATIONElectric, Pneumatic, or Gearbox (standard on sizes over 8")


METRIC

DURAPIPE PVC-U PIPESIn accordance with the requirements of EN 1452-2, DIN 8061/2, andISO DIS 15493. Pressure rating PN 16.

DURAPIPE PVC-U FITTINGSIn accordance with the requirements of EN 1452-3, DIN 8063, ISO727 and ISO DIS 15493. Pressure rating PN 16 up to size 160mm,and PN 10 in larger sizes.

MATCHED SYSTEMDurapipe PVC-U products are designed to ensure complete integrity,quality and compatibility between pipes, fittings and valves. Warrantiesare compromised if a system is installed with materials from variousmanufacturers. Where this is not possible then any alternative productsshould be confirmed as being at least equivalent to that which isnormally supplied.

QUALITY SYSTEMPipes, fittings and valves shall be manufactured in an environmentwhich operates a Quality Assurance System assessed to ISO 9001.

ENVIRONMENTAL SYSTEMThe manufacturer of pipes, fittings, and valves shall be able todemonstrate compliance with applicable environmental legislation andproducts shall be manufactured in an environment where documentedperformance reviews are undertaken and an EnvironmentalManagement System is successfully assessed to ISO 14001.

APPROVAL FOR USE IN CONTACT WITH DRINKING WATERWithin private property boundaries all PVC-U pipes, fittings and solventcement shall be listed in the Water Fittings and Materials Directory toshow compliance with the requirements of the United Kingdom WaterRegulations Advisory Service.In any situation which could result in the PVC-U pipes, fittings andsolvent cement coming into contact with water which is intended forhuman consumption these shall be in accordance with the requirementsof BS 6920 Part 1.Copies of certification of compliance with these approvals must beavailable for inspection.

THIRD PARTY APPROVALSThe manufacturer shall have the following Third Party Approvals:BRITISH STANDARD KITEMARK LICENCEKM06218 for solvent cement to BS 4346 Part 3 1982

WRAS WATER REGULATIONS ADVISORY SCHEME9902024 for Metric pipes & fittings (1100)0201505 for Durapipe solvent cement (5560)

COLOUR/MATERIAL/FOOD CONTACT APPROVALColoured dark-grey all Durapipe PVC-U materials conform to the ECrequirements for vinyl chloride monomer (VCM), and the requirementsof the World Health Organisation for potable water transportation.

DESIGN LIFEDurapipe pipes, fittings and valves are designed to operate continuouslyfor 50 years at their maximum rated pressure at a working temperatureof 20°C.

CHEMICAL SUITABILITYThe manufacturer shall publish detailed chemical resistance data toenable the suitability of the PVC-U material, seals, and gaskets to bedetermined by designers and specifiers.The manufacturer shall also employ a qualified and experiencedChemist and provide a free-of-charge advisory service for assessing thesuitability of its PVC-U material, seals, and gaskets.

DESIGN & INSTALLATION SPECIFICATIONThe installation must be carried out by competent persons. The contractor shall be required to provide technical documentationrelating to the manufacturers recommended Design and Installationprocedures. The manufacturer shall publish Design and Installationrecommendations, and shall also provide a free-of-charge trainingservice for designers and installers, with appropriate writtenconfirmation of attendance.

DURAPIPE PVC-U BALL VALVESTrue union design, end load resistant with full pressure and shockresistant anti blow out device which conforms to design and endurancetesting requirements of DIN 3441 Part 1, and DIN 3230 Part 3 LeakRate One (Water and Air). Drop Tight and Bubble Tight testing have been satisfactorily completed. In addition, the following testing has been successfully conducted:Hydrostatic Shell Test 1.5 x Maximum Working Pressure.Seat Test 1.1 x Maximum Working Pressure.

PRESSURE RATINGUp to size 63mm - PN16 at 20°C75mm up to 110mm - PN10 at 20°C

SEATS AND SEALSSeats: Will be PTFE material fitted with O ring compensators. Seals: Will be standard size O ring type for ease of replacement, in

EPDM or FPM material.END CONNECTIONSPlain socket ends, BSP threaded or flanged.ACTUATIONOptions: Electric or Pneumatic.

DURAPIPE PVC-U MULTIPORT BALL VALVESTrue union design. Options of ‘L’ or ‘T’ port configuration.The following testing will have been successfully completed:Drop Tight and Bubble Tight Test.Hydrostatic Shell Test 1.5 x maximum recommended pressure.Seat Test 1.1 x maximum working pressure.PRESSURE RATING16mm to 63mm – PN 10 at 20°C.SEATS AND SEALSSeats: Will be PTFE material fitted with O ring compensators. Seals: Will be standard size O ring type in EPDM or FPM material.END CONNECTIONSPlain socket ends or BSP threaded.

DURAPIPE PVC-U DIAPHRAGM VALVESThese are equipped with a maintenance free hand wheel actuator withspindle extension to indicate the position of the valve open or closed.The body retaining bolts are fixed from the underside to provide acrevice free outer surface to prevent accumulation of debris or risk ofcorrosion of exposed steel bolts from chemical spillage.Valves have been hydrostatically pressure tested to the requirements ofDIN 8063, ISO 5208, ISO 7508 and DIN 3230 Part 3 Leak Rate One.

PRESSURE RATING20mm to 110mm – PN10 at 20°CDIAGPHRAGM TYPEChoice of EPDM, FPM or PTFE will be available.END CONNECTIONThese may be plain spigot ends or flanged.ACTUATIONOptions: Pneumatic

DURAPIPE PVC-U BALL CHECK VALVESThese shall be single union with plain socket or BSP threaded end.PRESSURE RATING20mm to 63mm – PN16 at 20°C.SEALSSeals: Will be EPDM or FPM material.

DURAPIPE BUTTERFLY VALVESReinforced Polypropylene body, fully lined, with PP disc.Full flanged design, with oval holes/inserts to suit various standardflange drillings.Lever operated, with 10 x 10° position stops, and locking devicePRESSURE RATING50 mm to 250mm – PN 10 at 20°C315 mm – PN 8 at 20 °CPRIMARY LINERAvailable in EPDM, FPM, or NBRACTUATIONElectric, Pneumatic, or Gearbox (standard on sizes over 225 mm).

Tel: +44 (0)1543 279909 Fax: +44 (0)1543 27945070

Actuated valves

Durapipe offers a comprehensive range of actuated valves with eitherpneumatic or electric actuators, to meet the demands of the wide range ofapplications found in industrial pipework installations.

• Design and valve/actuator sizing advice

• On site training and service

• Full Quality Assurance ability to BS EN ISO 9001

• Technical advice from Durapipe UK Technical Support – telephones manned throughout the working day

• Every valve traceable from its individual serial number

The following actuated valves, compatible with the Durapipe PVC-U systems, are available:

• VK Ball Valve – electrically and pneumatically actuated

• DK Diaphragm – electrically and pneumatically actuated

• FK Butterfly – electrically and pneumatically actuated

Further details are given in Price Lists D0369 (Durapipe PVC-U imperial and metric systems), and in our Valve Technical brochure D0894.


Corzan• Solvent weld thermoplastic pipe system for aggressive

substances. • Designed specifically for use in highly corrosive

conditions at temperatures up to 95ºC. • Valves range available.

Polypropylene • Thermoplastic pipe heat-weld system to convey

chemicals at temperatures up to 100ºC.• Excellent resistance to a wide range of substances.• Available in larger diameters up to 500mm. • Full range of valves.

ABS• Ideal for chilled, potable and waste water• Tough, durable, lightweight and fully approved• Suitable for use from -40°C to +70°C• Fully matched system of pipes, fittings and valves

Air-Line Xtra • High performance thermoplastic pipework system for

compressed air.

Friatherm • A better way for hot and cold water offering quick,

easy and efficient installations.

Vulcathene• Safe chemical drainage • Two easy jointing methods - Mechanical or Enfusion • Ideal for schools, universities and colleges, hospitals

and clinics, pharmaceutical and researchorganisations.

Other Durapipe UK pipework systems

Distributor

D0366/2 November 2003

Durapipe UKWalsall Road CannockStaffordshireWS11 9NSUnited KingdomTel: +44 (0)1543 279909Fax: +44 (0)1543 279450email: [email protected]: www.durapipe.co.uk

For further information on all Durapipe products and services contact our Internal Sales Department as detailed below.

pvc-utechnical

Documents