“aira” Offers Double-offset wafer type butterfly valve ( resilient-seated ), available with long or short face – to – face length for use in most common flow control applications. Long service life, as the media does not come into contact with the bearing, and due to the wear – resistant, corrosion and infiltration-proof seat with weld overlay. Suitable for use water distribution, water treatment, pre – treated waste water, dams, power plants, industry and pressure management.
Specification & Standard
| Specification | Details |
|---|---|
| Design & Manufacturer | API 60/ BS 5155/ BS EN 593/ IS 13095/ AWWA C-504 |
| Valve Face To Face Dimension | API 609 (Short Pattern), BSEN 558 (Long Pattern), IS 13095 |
| Flange Standard Conformity | ASME / ANSI B 16.5 Class 300 & 600 |
| Inspection & Testing | API 598, BSEN 12266-1, AWWA C 504, AWWA C 516, IS 13095 |
| Top Flange Drilling | ASME B16.5 / 16.47 Class 150 |
| Seat Leakage Class | Class VI As Per ANSI B16.104 |
| End Connection | Double Flange – D/F- AWWA C 504 D/F – IS 13095 – 150#, 300#, 600#, PN-10, PN-16, PN-20, PN-25 |
| Size Range | 2″ To 24″ Double Flange 300# & 600# (50 MM To 600 MM) |
| Temperature Range | NBR -10°C To +90°C, EPDM -10°C To +90°C, VITON -10°C To +90°C |
| Pressure Class | 150#, 300#, 600#, PN-10, PN-16, PN-20, PN-25 |
| Media | Water, Oil, Steam, Air, Gas, Chemical & Vacuum |
| Body Material | CAST IRON, DUCTILE IRON, S.G IRON, WCB, CF8, CF8M, CA 15, WCC, LCB, WC6, WC9, WC12, HAST ALLOY C, NICKEL ALUMINIUM BRONZE, DUPLEX 4A, 5A, 6D, SUPER DUPLEX, ALLOY 20 |
| Disc Material | CAST IRON, DUCTILE IRON, S.G IRON, WCB, CF8, CF8M, CA 15, WCC, LCB, WC6, WC9, WC12, HAST ALLOY C, NICKEL ALUMINIUM BRONZE, DUPLEX 4A, 5A, 6D, SUPER DUPLEX, ALLOY 20 |
| Seat Material | EPDM / NBR / VITON |
| Design Standard | API 609, IS : 13095, BSEN 593, AWWA C 504, AWWA C 516 |
| Flange Drilling | ASME B16.5 / 16.47 Class 150 |
| Certification | Design CE Approved, SIL3 Approved, Fire Safe Approved |
