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Rubber Lined Double Flanged Butterfly Valve


Specification Details
Size Range 1.1/2″ To 48″ (40MM To 1200MM)
Temperature Range -20°C To 80°C For Nitrile Seat (Depending On MOC)
Working Pressure PN 10 / PN 16 (PN 20 On Request)

“aira” Offers Resilient-seated, butterfly valve for flange mounting to pipelines; concentric disc design; with replaceable liner. Suitable for use in cooling towers, waste-water applications, water treatment, water distribution, dams, gas main and service lines, pressure stations, gas storage tanks, power plants and gas pipelines industry.

Specification & Standard

Specification Details
Size Range 1.1/2″ To 48″ (40MM To 1200MM)
Temperature Range -20°C To 80°C For Nitrile Seat (Depending On MOC)
Pressure Class PN 10 / PN 16 ( PN 20 On Request )
Body Style Double Flanged
Seat Materials NBR / Nitrile / EPDM / Viton / Hypelon / Silicon / Neoprene
Flange Drilling IS 6392 / EN 1092 – 1 / EN 1092 – 2 / ASME B 16.5 150#
End Connection Double Flange As Per ASME B16.5 / ASME B 16.47 Class 150
Body Materials S.G.I / WCB / Gray Iron / Cast Steel / Ductile Iron / CF8 / CF8M / CF3M / CD4MCuN
Stem Materials SS 304 / 316 / 410 / 17 – 4 PH / Super Duplex 2507 / 2205
Disc Materials Gray Iron / Cast Steel / Ductile Iron / CF8 / CF8M / CF3M / CD4MCuN / S.G. Iron with Teflon / Teflon / Powder / Nylon Coated / Rubber Line / ASTM A – 995
Design And Manufacturer Short Wafer Type Double Flanged Centric Disc Butterfly Valves with Single Piece Rubber Lined Body
Testing Standard BSEN 12266 – 1, API 598
Face To Face BSEN 558

Features & Benefits

The Aira Rubber Lined Concentric Disc Double Flange Butterfly Valve is engineered for reliable sealing and durability in a range of industrial applications.

1 – Rubber Lining: Provides effective sealing and protection against corrosion, reducing leakage and extending valve life.

2 – Concentric Disc Design: Ensures smooth operation and minimal friction, enhancing control and performance.

3—Double Flange Configuration: This configuration features flanges on both sides for secure mounting and ease of installation in piping systems.

4 – Durable Construction: Constructed from high-quality materials to withstand challenging conditions and high pressures.

5 – Versatile Use: Ideal for water treatment, HVAC systems, and other industrial processes where reliable and efficient flow control is required.

Dimension Table

Size Range

1.1/2" To 48" (40MM To 1200MM)

Temperature Range

-20°C To 80°C For Nitrile Seat (Depending On MOC)

Working Pressure

PN 10, PN 16 (PN 20 On Request)

Enquiry Form


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