Fig. 970W Butterfly Valve Fully Lugged (WRAS Approved)
Verified by manufacturer 11 days ago
DN50: Fig. 970W
DN50: Fig. 970W
A fully-lugged, wafer pattern, lever or gearbox operated butterfly valve.
Application
Valves may be used for flow regulation.
Description
A fully-lugged, wafer pattern, lever or gearbox operated butterfly valve.
Features and benefits:
- Ductile iron body.
- Aluminium bronze disc.
- Liner bonded to steel backing ring.
- High strength, low friction bearings for upper and lower shafts, to restrain shaft deflection and ensure effective stem sealing.
- Long neck for insulation.
- Maintenance free.
- Valves DN250 and larger supplied as standard with fully enclosed gear operator.
General information
Color | Blue Guidance for specification option: Body, shaft covering and lever. Yellow Guidance for specification option: Aluminium bronze disc. Silver Guidance for specification option: Stainless steel shaft. Black Guidance for specification option: Buna-N O-ring. |
Material | Cast iron |
Uniclass |
Product range |
Specification data - Butterfly valves
Standard | To BS EN 593: 2009. |
DN rating | DN50.Manufacturer guidanceNominal. |
PN rating | Temperature: -10 to +80°C: PN16.Guidance for specification option: Non-WRAS applications: -10 to +120°C: PN16. Manufacturer guidanceEach valve is individually hydrostatically tested to BS EN 12266-1 at the following test pressures: Shell (24 bar) and Seat (17.6 bar). |
Working conditions | |
Maximum working pressure | 10 to 16 bar. |
Materials | |
Body | Ductile iron.Guidance for specification option: ASTM A536 65-45-12 and BS EN 1563 EN-JS 1030 (Nearest BS material grade equivalent to ASTM grade). |
Shaft | Stainless steel grade 410, 1.4006.Guidance for specification option: To ASTM UNS41000 (SS410) and BS EN 10088-1: 2014 1.4006 (Nearest BS material grade equivalent to ASTM grade). |
Disc | Aluminium bronze.Guidance for specification option: To ASTM B148 C95400 and BS EN 1982:2008 CC331G (Nearest BS material grade equivalent to ASTM grade). |
Seat | Guidance for specification option:
|
Operation | |
Manual | Lever.Guidance for specification option: Fig. 970W. |
Dimensions | 195 x 83 x 44 x 32 x 102 x 260 x 32 mm. Guidance for specification option: Lever. Manufacturer guidance
|
Weight | 4.0 kg. |
Third-party accreditation | WRAS Approved. |
Sustainability data
Material | Cast iron |
Recyclability | Recycle locally |
Expected Life | 20 year |