Approvals
“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
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 & Vaccum
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
Features & Benefits
The aira Double Offset Disc Double Flange Butterfly Valve is engineered for high performance and durability in industrial applications.
1 – Double Offset Design: Reduces friction and torque, providing superior sealing and a tight shut-off.
2 – Double Flange Configuration: Ensures secure mounting with flanges on both sides for stability and ease of installation.
3 – Disc Design: The offset disc arrangement enhances flow control and minimizes wear.
4 – Robust Construction: Made from high-quality materials to handle extreme conditions and high pressures.
5 – Versatile Applications: Ideal for use in water treatment, chemical processing, and power generation.
Fire Safe Design
Direct Mounting As Per ISO 5211
Double Offset Disc
Double Flanged Butterfly Valve
Dimension Table
Double Offset Disc
Double Flanged Butterfly Valve
Dimension Table
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