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Bronze CommissioningValves

SECTION6a

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Contents

Bronze Commissioning Valves

Fig No Description Page

750 Test Points 61000 & 1000C Metering Station 71000L & 1000LC Metering Station 81000M & 1000MC Metering Station 81432 & 1432C Double Reg.Valve 91432L & 1432LC Double Reg.Valve 91732 & 1732C Commissioning Set 101732L & 1732LC Commissioning Set 101732M & 1732MC Commissioning Set 101832 & 1832C Commissioning Set 111832L & 1832LC Commissioning Set 111832M & 1832MC Commissioning Set 111200DR Double Reg.Valve 124000 & 5200 Metering Station / Commissioning Set 13

Bronze Commissioning Valves Coefficients 14 - 15

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Introduction

Bronze Commissioning Valves

Water RegulationsMany Hattersley CommissioningProducts are Water RegulationsAdvisory Scheme (WRAS) Approved.

WarningBalancing a system requires theconnection of manometer probes tolive pressure test points.

Under no circumstances must a LTHW,MTHW or HTHW system becommissioned at operatingtemperature because of the danger ofserious injury.

*This recommendation is given byCIBSE in their commissioning CodeW.

This publication describes theHattersley range of products availablefor the manual balancing of waterdistribution systems.

The British Standard BS7350 relatesto double regulating globe valves(DRV) and flow measurement devicesfor heating and chilled water systems.It includes one valve and two valvecommissioning products and the tableoverleaf relates Hattersley products to the types and definitions given in BS7350.

AccuracyBS7350 details the accuracy to whicheach device must conform andHattersley products conform to theselimits of accuracy.

BSI KitemarkMany Hattersley products bear theKitemark approval and this is shownon the relevant data pages.

Commissioning Setsmetering station and a close coupleddouble regulating valve. It is normallyfitted in the return line of the system,however, it will perform equally wellin the flow section of pipework.

The metering station, containing anorifice, is fitted with test points sothat the pressure drop across theorifice can be measured.This pressuredrop is relative to a flow which hasbeen determined by practical testing.

Commissioning sets, which are the number one choice, provide a 5% accuracy and should beinstalled in straight pipe with aminimum of 5 diameters uninterrupted upstream length.

Variable Orifice DoubleRegulating Valves (VODRVs)An alternative to one valvecommissioning sets is the use ofVODRVs which are double regulatingvalves fitted with test points.

The VODRV is an economic choicewhere an accuracy of 10% or higheris acceptable.

Compression Ended ProductsIn the following pages, productssuitable for use with 15mm copperpipe are shown. Care must be takento use the flow charts forcompression ended products whencommissioning with these valves.

Flow ChartsAll Hattersley commissioningproducts have been extensively flow tested and flow charts are readily available.

Valve SizingThe correct sizing of valves cannot beover emphasised if balancing of waterdistribution systems is to besuccessfully achieved.

With valve sizing, consideration mustbe given not only to flow rate, butimbalance to be removed.The movetowards smaller fan coil units and lowflow rates in 15mm pipeworkrequires a commissioning set capableof measuring and controlling theselow flow rates whilst keeping thevalve at least 25% open.*

The Hattersley range is specificallydesigned to handle low flow rates in15mm copper pipework.

See: 1732LC1832LC2432LC

CommissioningSet (Globe)

CommissioningSet (Butterfly)

MeteringStation

DoubleRegulating Valve

(Globe)

DoubleRegulating Valve

(Butterfly)

Isolating Valve(Gate)

Isolating Valve(Butterfly)

PressureTapped Valve

(Globe)

PressureTapped Valve

(MS + IV)

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Figure Number Identification

Bronze Commissioning Valves

One Valve System (Measurement and regulation at one point)

Commissioning Set Components

Service Commissioning Metering Double Regulating End Size BodySet (CS) Station (MS) Valve (DRV) Connections Range MaterialFig No Fig No Fig No

Chilled Water 2432 1000 1432 Screwed 1/2 - 2in Bronze/DZRLTHW,MTHW 2432C 1000 1432C Compression 15mm Bronze/DZR

1732 + 18321732C + 1832C1732L + 1832L Screwed 1/2in Bronze/DZR1732LC + 1832LC Compression 15mm Bronze/DZR1732M + 1832M Screwed 1/2in Bronze/DZR1732MC + 1832MC Compression 15mm Bronze/DZR

HTHW 5200 1200DR Flanged 15-50mm Bronze4000 Stainless Steel

Variable Orifice Double Regulating Valves (VODRVs)

Service FODRV/ Isolating Valve End Size Range BodyVODRV Fig No Connections MaterialFig No

Chilled Water 1732 30 Screwed 1/2-2in DZR

1832

LTHW MTHW M737 M541 Flanged 50-300mm Cast Iron

HTHW 1200DRZ 1200 Flanged 15-50mm Bronze

Preferred Arrangement

Alternative Arrangement

VODRV Arrangement

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Fig 631, 632 and 633

for Pressure and Temperature MeasurementHattersley Test Points

BS7350When fitted to measuring devices andstrainers, test points are supplied withcap retainers in red and blue forupstream and downstream portidentification.This meets therequirements of BS7350.

Test ProbesThe application of a silicone lubricantto the probe shaft prior to insertionis recommended.

Test points are available in eitherstandard length, figure 631, orextended length, figure 633, boththreaded 1/4 BSP (Tr).The extendedlength test point requires special testprobe available from Hattersley.

Test points are fitted with green capretainers when supplied in convenientblister packs:-

Figure 631 - 10 test points per packFigure 633 - 5 test points per pack

Hattersley Fig 631 Test Points areWRAS Approved Products and arelisted in the Water Fittings andMaterials Directory.

36mm

68mm

Strategically placed test points allowaccess to live fluid systems forpressure and temperaturemeasurements. Maximum temperatureis 120C and maximum pressure is3450kPa. Suitable for Chilled Water,LTHW and MTHW.

The single piece DZR copper alloybody houses a uniquely designedelastomeric core providing excellentsealing performance and wearresistance.

Double sealing on the cap is providedby precision metal to metal jointingbacked up by a resilient "O" ring, allowing convenient, positive finger tightening.

Elastomer Seal

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Fig 750

Hattersley Valve Controlled Test Points

Suitable for 40 bar pressure up to180C including HTHW service

Features

n Double isolating

n Uses standard air vent key

n Fitted with cap retainers in red and blue for upstream and downstream port identification.When used in pairs on measuring devices this meets the requirements of BS7350.

n Recommended by Hattersley andfitted as standard to Hattersley M3000 and 4000 metering stations

n Copper alloy construction

n Accepts commercially available probes

n Threaded 1/4 ISO 7 (Tr)

50mm

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Material Specification

Specification

Component Material BS EN ASTM

Metering Station Bronze 12165 CW602N B62

Test Point Fig 631

Com

pression

Ends

Threaded Ends

0 20 40 60 80 100 120 140Temperature C

20

16

12

4

0

Pre

ssur

eba

r

8

Dimensions

Nominal Size in 1/2 3/4 1 11/4 11/2 2

mm 15 22 28 32 40 50

A (threaded) mm 57 58 66 72 72 82

A1 (compression) mm 66

B mm 55 61 65 71 73 79

Weight kg 0.29 0.30 0.40 0.50 0.54 0.77

Fig. 1000 - 1000C

Bronze Metering Stations PN20 - Series B (Threaded): PN16 (Compression)

Pressure/Temperature RatingThreaded EndsPN20 Series B15 bar at 120C20 bar from -10 to 100C

Compression Ends5 bar at 120C6 bar at 110C10 bar at 65C16 bar from 2 to 30C

Test Pressures (Hydraulic)Shell: 30 bar

SpecificationKitemarked to BS7350WRAS Approved ProductSupplied fitted with two Fig 631 test points.Figure 1000 end connections threadedto BS21 (ISO7) Taper female with the exception of the 1/2in inlet whichis parallel.Figure 1000C suitable for use with15mm copper pipe

Use figure 1000 with figure 1432 tomake Commissioning Set 2432.(see page 9)

A1

B

A

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Com

pression

Ends

Threaded Ends

0 20 40 60 80 100 120 140Temperature C

20

16

12

4

0

Pre

ssur

eba

r

8

Material Specification

Specification

Component Material BS EN ASTM

Metering Station Bronze 12165 CW602N B62-C83600

Test Point Fig 631

Dimensions

Nominal Size in 1/2mm 15

A (threaded) mm 57

A1 (compression) mm 66

B mm 55

Weight kg 0.29

Fig. 1000L - 1000LC - 1000M - 1000MC

Bronze Low & Medium Flow Metering StationsPN20 - Series B (Threaded): PN16 (Compression)

Pressure/Temperature RatingThreaded EndsPN20 Series B15 bar at 120C20 bar from -10 to 100C

Compression Ends5 bar at 120C6 bar at 110C10 bar at 65C16 bar from 2 to 30C

Test Pressures (Hydraulic)Shell: 30 bar

SpecificationGenerally in accordance with BS7350WRAS Approved ProductSupplied fitted with two Fig 631 test pointsOutlet connection screwed BS21(ISO7-1) taper.Inlet connection screwed BS2779 (ISO 228) parallelSuitable for use with flow rates downto 0.01l/s.

Use fig. 1000L and 1000M with fig.1432L to make Commissioning Set;2432LL and 2432LM respectively.

A1