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#2310412

Range of spring loaded, non-return valves with ductile iron bodies (blue epoxy powder coated) with stainless steel discs, springs and shafts and EPDM seat. Maximum working pressure 25.0 bar. Maximum operating temperature 85°C.

Non-metallic materials and components comply with BS6920 at 85°C

Section:
2185 Valves
Section Subtitle:
Non-return, spring loaded, resilient trim. Devices listed under this heading do not provide sufficient protection against backflow to meet the requirements of The Water Supply (Water Fittings) Regulations 1999 (England and Wales), The Water Supply (Water Fittings) (Scotland) Byelaws 2014 or The Water Supply (Water Fittings) Regulations (Northern Ireland) 2009. For this purpose reference should not be made to `Backflow Prevention Devices`.
WRAS Approval Number:
2310412
Size:
Flanged connection - DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300.
Marking:
Blaze, model number, DN, PN, WRAS, seat on data plate.
Installation Requirements:
R001
Expiry date:
31/10/2028
Model:
BT1411 & BT1412 series non return valves.

Approval Holder:
Blazetech Systems Ltd.
Company Name
Blazetech Systems Ltd.
Address
Integer Millennium House, Bucknalls Lane, Watford
Postcode
WD25 9XX
Country
United Kingdom
General Email
info@blaze-tech.com

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#2311380

UNIWAT 5107Range of swing gate, non-return valves with blue epoxy coated ductile iron bodies and EPDM swing gates. Maximum working pressure 16.0 bar. Maximum operating temperature 85°C.

Section:
2188 Valves
Section Subtitle:
Swing gate valve(s) with resilient trim. Can be defined as non-return valve however, does not provide sufficient protection to be considered a backflow protection device.
WRAS Approval Number:
2311380
Size:
Flanged: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350 & DN400.
Marking:
Comeval, UNIWAT & logo, PN, size, model, WRAS & temperature on data-plate. Comeval logo, PN, DN, flow arrow on body.
Installation Requirements:
R001
Expiry date:
30/11/2028
Model:
UNIWAT 5107: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350 & DN400

Approval Holder:
Comeval Valve Systems S.L y CIA., Soc. Comanditaria
Company Name
Comeval Valve Systems S.L y CIA., Soc. Comanditaria
Address
Les Rotes 15 El Puig de Santa Maria
Postcode
ES 46540
Country
Spain
General Email
carlos.ruiz@comeval.es

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#250702716

Range of normally open (L282 prefix models), normally closed (L182 models) or latching (61 suffix models) solenoid valves with either brass, nickel plated brass or stainless-steel bodies and an EPDM diaphragm. Please refer to model for maximum working pressure. Maximum operating temperature 85.0°C

Section:
2230 Valves
Section Subtitle:
Solenoid, metal.
WRAS Approval Number:
250702716
Basis of Compliance:
Tested to regulators Specification Test Code Sheets
Size:
See model
Marking:
Asco (brand of Emerson), model and product info on coil. Size and flow arrow on body. L182D61 (¾” & 1”) models added January 2026: Asco (brand of Emerson) and technical information on coil. Size, model and flow arrow on body.
Installation Requirements:
R001
Expiry date:
31/07/2030
Model:
Brass bodies: Maximum working pressure 16.0 bar: L182D01 & L182D02: ½” BSP (F). Maximum working pressure 12.0 bar: L182D01 & L182D02: ¾" & 1” BSP (F). Stainless steel bodies: Maximum working pressure 16.0 bar: L182D09: ½” BSP (F). Maximum working pressure 12.0 bar: L182D09: ¾” & 1” BSP (F). Models added October 2025: Brass bodies: Maximum working pressure 16.0 bar: L182D01 & L182D02: ⅜" BSP (F). L182D03 & L182D04: ⅜" & ½” NPT (F). Nickel plated brass bodies: Maximum working pressure 16.0 bar: L182D05: ⅜" & ½” BSP (F). Stainless steel bodies: Maximum working pressure 16.0 bar: L182D09 & L182D10: ⅜" BSP (F). L182D10: ½” BSP (F). L182D11 & L182D12: ⅜" & ½” NPT (F). Brass bodies: Maximum working pressure 12.0 bar: L182D03 & L182D04: ¾" & 1” NPT (F). L282D01: ⅜", ½”, ¾” & 1” BSP (F). Nickel plated brass bodies: Maximum working pressure 12.0 bar: L182D05: ¾” & 1” BSP (F). Stainless steel bodies: Maximum working pressure 12.0 bar: L182D10: ¾” & 1” BSP (F). L182D11 & L182D12: ¾” & 1” NPT (F). Brass bodies: Maximum working pressure 10.0 bar: L182D48 & L182D49: 1¼", 1½” & 2” BSP (F). L182D50 & L182D51: 1¼", 1½” & 2” NPT (F). L282D48: 1¼" BSP (F). L282D50: 1¼" NPT (F). Brass bodies: Maximum working pressure 9.0 bar: L282D48: 1½” & 2” BSP (F). L282D50: 1½” & 2” NPT (F). Brass bodies: Maximum working pressure 8.0 bar: L182D61: ⅜" & ½” BSP (F). Model added January 2026: Brass bodies: Maximum working pressure 8.0 bar: L182D61: ¾” & 1” BSP (F).

Approval Holder:
Emerson Automation Fluid Control & Pneumatics Italy Srl.
Company Name
Emerson Automation Fluid Control & Pneumatics Italy Srl.
Address
Strada per Cernusco 19 20060 Bussero (MI)
Country
Italy

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Manufacturer:
Emerson Automation Fluid Control & Pneumatics Italy Srl.
Company Name
Emerson Automation Fluid Control & Pneumatics Italy Srl.
Address
Strada per Cernusco 19 20060 Bussero (MI)
Country
Italy

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#250715701

Solenoid valve with a plastic body, incorporating an EPDM diaphram and EPDM sealing rings. Maximum working pressure 8.0 bar. Maximum operating temperature 65°C.

Section:
2240 Valves
Section Subtitle:
Solenoid, plastic.
WRAS Approval Number:
250715701
Basis of Compliance:
Tested to regulators Specification Test Code Sheets
Size:
38.1 mm x 22.9 mm (L x W)
Marking:
Volong, 6V and production date (YYYYMMDD) on body.
Installation Requirements:
R001 R008
Expiry date:
31/07/2030
Model:
NA1278

Approval Holder:
ZHEJIANG VOLONG SANITARY WARES CO., LTD.
Company Name
ZHEJIANG VOLONG SANITARY WARES CO., LTD.
Address
No.467 Jinhai 2nd Road, Xinghai Street, Longwan District, Wenzhou City, Zhejiang Province
Country
China
Phone
0086‐577‐85236000
General Email
sale@volong.com

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Manufacturer:
ZHEJIANG VOLONG SANITARY WARES CO., LTD.
Company Name
ZHEJIANG VOLONG SANITARY WARES CO., LTD.
Address
No.467 Jinhai 2nd Road, Xinghai Street, Longwan District, Wenzhou City, Zhejiang Province
Country
China
Phone
0086‐577‐85236000
General Email
sale@volong.com

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#250702038

Range of angled spherical valves with (brass bodies - various finishes), PTFE seats and NBR seals. Model Art. 1251 incorporates a stainless-steel filter. Maximum working pressure 10.0, 35.0 or 55.0 Bar (see models) Maximum operating temperature 90.0°C (Art. 1251 Cold water only)

Section:
2260 Valves
Section Subtitle:
Spherical valve(s) with metal body
WRAS Approval Number:
250702038
Basis of Compliance:
Tested to regulators Specification Test Code Sheets
Size:
1/2" BSP (M) x 1/2" BSP captive nut
Marking:
NV and Novasfer logo on body (Art. 1240) NV, Novasfer logo, size and DoM (YY/MM) on body (Art. 1230) Novasfer logo, size and flow arrow on body (Art. 1251) Novasfer logo, size and DoM (YY/MM) on body (Art. 1581)
Installation Requirements:
R001
Expiry date:
31/07/2030
Model:
Art. 1240 (35.0 Bar + Brass finish) Art. 1230 (35.0 Bar + Chrome finish) Art. 1251 (55.0 Bar + Chrome finish) Art. 1581 (10.0 Bar + Brass finish)

Manufacturer:
Novasfer
Company Name
Novasfer
Address
Via Galileo Galilei 3, 25080 Carzago Riviera BS
Postcode
Italy

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