“aira” triple eccentric butterfly valves are metal-to-metal seated, offering zero leakage, bi-directional flow control, and low emissions. They are suitable for extreme temperatures from -10°C to 400°C, with a triple offset sealing system that ensures friction-free operation and adaptability to temperature fluctuations.
Specification & Standard
| Specification | Details |
|---|---|
| Design & Manufacturer | API 609 Category "B" / BS EN 593 |
| Valve Face To Face Dimension | API 609 / BS EN 558 |
| Flange Standard Conformity | ANSI B16.5, 16.47 150# / 300# / 600# |
| Inspection & Testing | FCI-70-2 / B16,104 / ISO 5208 / BS EN 12266-1 |
| Pressure Temperature Rating | ASME B 16.34 |
| Top Mounting Standard | ISO 5211 |
| Stem Square Drive | ISO 5211 |
| Seat Leakage Class | IV / V / VI |
| Top Flange Drilling | ASME B16.5 / 16.47 Class 150 |
| End Connection | WAFER TYPE- D/F- AWWA C 504 D/F - IS 13095 - 150# 300# 600# PN-10 PN-16 PN-20 PN-25 PN-40 |
| Size Range | 1.1/2" To 48" (Above 48" On Request) (40 MM To 1200 MM) |
| Temperature Range | Up to 400°C |
| Pressure Class | 150#, 300#, 600# PN-10 PN-16 PN-20 PN-25 PN-40 |
| Media | Water, Oil, Steam, Air, Gas, Chemical & Vacuum |
| Leakage Class | Class VI As Per ANSI B16.104 |
| Body Material | CI, DI, S.G.I, WCB, CF8, CF8M, CA15, WCC, LCB, WC6, WC9, WC12, HAST ALLOY C, NICKEL ALUMINIUM BRONZE, DUPLEX 4A, 5A, 6D, SUPER DUPLEX, ALLOY 20 |
| Disc Material | CI, DI, S.G.I, WCB, CF8, CF8M, CA15, WCC, LCB, WC6, WC9, WC12, HAST ALLOY C, NICKEL ALUMINIUM BRONZE, DUPLEX 4A, 5A, 6D, SUPER DUPLEX, ALLOY 20 |
| Seat Material | SS 304, SS 304L, SS 316, SS 316L, SS 304 + STELLITE 6, SS 316 + STELLITE 6, SS 316 + STELLITE 21, INCONEL, DUPLEX 4A, DUPLEX 5A |
| Flanged Drilling | ASME B16.5 / 16.47 Class 150 |
| Certification | Design CE Approved, SIL3 Approved, Fire Safe Design Approved 150# PN 10 / PN 16 / PN 20 & 300# PN 25 / PN 40 |
