Section 2185

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Valves

Non-return, spring loaded, resilient trim

Devices listed under this heading do not provide sufficient protection against backflow to meet the Water Byelaws requirements. For this purpose reference should be made to `Backflow Prevention Devices`.

Devices listed under this heading do not provide sufficient protection against backflow to meet the Water Byelaws requirements. For this purpose reference should be made to `Backflow Prevention Devices`.

WRAS Approval Number  1112106

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Range of spring loaded resilient trim, non-return valves with blue epoxy coated ductile iron bodies, stainless steel and nickel plated ductile iron discs and EPDM seals. Maximum working pressure 16.0 bar. Cold water use only.

Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250 and DN300.

Model: BOSS range of non-return valves.

Marking: Boss & technical information on data plate. TGV, CE, size, pressure rating and flow arrow on body.

Installation Requirements : R001           

Note: Not suitable for backflow protection

Proviso:  

Manufacturer:  

Factor: BSS Group Ltd.

WRAS Approval Number  1209354

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Range of spring loaded, resilient trim, non return valves (blue epoxy coated cast iron body) with a DZR brass plunger and EPDM seals. Maximum working pressure 16.0 bar. For cold water use only.

Size: DN50 - DN250.

Model: Aquacheck.

Marking: Aquacheck, flow arrow, DN & PN on body.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer: Aquacheck Engineering Ltd

Factor:  

WRAS Approval Number  0910086

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Range of spring loaded, resilient trim, non-return valves with cast iron bodies (epoxy powder coated) with stainless steel loaded plungers and an EPDM seals. For cold water use only.

Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500 and DN600.

Model: Gaer

Marking: GAER, PN, size and direction of flow arrow on body.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer:  

Factor: Hidroglobal Tecnologia del Agua S.A.

WRAS Approval Number  1112069

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Range of spring loaded resilient trim, non-return valves with blue epoxy coated ductile iron bodies, stainless steel and nickel plated ductile iron discs and EPDM seals. Cold water use only. Maximum working pressure 16.0 bar.

Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250 and DN300.

Model: ‘Dual plate range’

Marking: TGV, size, pressure rating and direction of flow arrow on body.

Installation Requirements : R001           

Note: Not suitable for backflow protection

Proviso:  

Manufacturer: Tianjin Gulf Valve Co.Ltd

Factor:  

WRAS Approval Number  0910089

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Range of spring loaded, resilient trim, non-return valves with cast iron bodies (epoxy powder coated) with stainless steel loaded plungers and an EPDM seals. For cold water use only.

Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500 and DN600.

Model: Fig. 303.

Marking: Rapidrop, PN, DN & flow arrow on body. Model & WRAS Approved Product on dataplate.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer:  

Factor: Rapidrop Global Limited

WRAS Approval Number  1209365

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Range of spring loaded, resilient trim, non return valves (blue epoxy coated cast iron body) with a DZR brass plunger and EPDM seals. Maximum working pressure 16.0 bar. For cold water use only.

Size: DN50 - DN250.

Model: Boss 11XS range.

Marking: Boss, 11XS, Aquacheck, flow arrow DN & PN on body.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer:  

Factor: BSS Group Ltd.

WRAS Approval Number  1304315

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Range of spring loaded, resilient trim, non-return valves with ductile iron bodies (epoxy powder coated) with stainless steel loaded plungers and an EPDM seal. Maximum working pressures; DN300 - 400 = 10.0 bar - 25.0 bar. DN450 - 600 = 10.0 bar - 16.0 bar. For cold water use only

Size: DN300 - 400 = 10.0 bar - 25.0 bar. DN450 - 600 = 10.0 bar - 16.0 bar.

Model: KRVGA range.

Marking: Manufacturer's logo, direction of flow arrow, DN and PN on body. Manufacturers name, valve type, DN, PN, Maximum working temperature on data plate.

Installation Requirements : R001           

Note:  

Proviso:  

Manufacturer: Shanghai Karon Valves Machinery Co., Ltd.

Factor:  

WRAS Approval Number  0910088

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Range of spring loaded, resilient trim, non-return valves with cast iron bodies (Epoxy powder coated) with stainless steel loaded plungers and an EPDM seals. For cold water use only.

Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500 and DN600.

Model: 2237 WS.

Marking: Econosto, model & WRAS Approved Product on dataplate. Size, PN & flow arrow on body.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer:  

Factor: Econosto International B.V.

WRAS Approval Number  1209363

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Range of spring loaded, resilient trim, non return valves (blue epoxy coated cast iron body) with a DZR brass plunger and EPDM seals. Maximum working pressure 16.0 bar. For cold water use only.

Size: DN50 - DN250.

Model: Hattersley Fig. 761.

Marking: Aquacheck, flow arrow, DN & PN on body.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer:  

Factor: Hattersley

WRAS Approval Number  1103339

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Range of spring loaded, resilient trim, non return valves (epoxy coated cast iron body) with a bronze plunger and EPDM seals. Maximum working pressure 16.0 bar and maximum operating temperature 85°C.

Size: DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250 and DN300.

Model: 402 DN 40 Reference 2281, 402 DN 50 Reference 2282, 402 DN 65 Reference 2283, 402 DN 80 Reference 2284, 402 DN 100 Reference 2285, 402 DN 125 Reference 2226, 402 DN 150 Reference 2227, 402 DN 200 Reference 2229, 402 DN 250 Reference 2230 & 402 DN 300 Reference 2231.

Marking: SOCLA and direction of flow arrow on body. Data plate on body.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer: Socla SAS

Factor: Socla UK

WRAS Approval Number  0910068

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Range of spring loaded, resilient trim, non-return valves with cast iron bodies (Epoxy powder coated) with stainless steel loaded plungers and an EPDM seal. For cold water use only.

Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500 and DN600.

Model: Fig. 00/0168

Marking: Pressure rating, size and arrow cast onto body. VIP, pressure rating and technical information printed onto data plate.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer:  

Factor: Valves Instruments Plus Ltd

WRAS Approval Number  0910067

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Range of spring loaded, resilient trim, non-return valves with cast iron bodies (Epoxy powder coated) with stainless steel loaded plungers and an EPDM seals. For cold water use only.

Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500 and DN600.

Model: Weflo Fig. 5306

Marking: Weflo, size and pressure rating cast onto body. Weflo, Fig. 5306 & WRAS Approved Product printed onto data plate on body.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer:  

Factor: Weflo Valve Company Ltd.

WRAS Approval Number  0910062

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Range of spring loaded, resilient trim, non-return valves with cast iron bodies (Epoxy powder coated) with stainless steel loaded plungers and an EPDM seals. For cold water use only.

Size: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250,DN300, DN350, DN400, DN450, DN500 and DN600.

Model: Fig 5306.

Marking: Weilong, size and arrow cast onto body.

Installation Requirements : R001           

Note: Not suitable for backflow prevention.

Proviso:  

Manufacturer: Weilong Valve Co Ltd

Factor: