Double Offset Butterfly Valve

Product Specifications

Product Type	Double Offset Butterfly Valve
Valve Size	2" to 24"
Pressure Class	150, 300
Ends	Flanged / Wafer Type / Lug Type
Operation	Lever, Gear, Actuator (Pneumatic, Electrical)
Materials	Cast Iron, Carbon Steel, Stainless Steel, Alloy Steel
Design Features	Anti-Blow out Stem Soft Seated / Metal Seated Reduced Seat wear Low operating torque

Double Offset Butterfly Valves are quarter-turn valves used to stop the flow of medium in pipelines. ... This support is in the shape of a shaft and is called a trunnion. The trunnion absorbs any added pressure from the flow, reducing stress on the ball and seats of the valve.

Applicable Standards

Design Standard	API 609, ASME B16.34
P-T Rating	ASME B16.34
Face to Face	API 609, ASME B16.10
End Connections	ASME B16.5
Testing	API 598
Fire Safe	API 607, ISO 10497
NACE Requirement*	NACE MR-01-75, NACE MR-01-03
FET Testing*	ISO 15848
Cryo Test*	BS 6364

* On request.

Industries

Pipeline & Process Industry
Oil & Gas Industry
Power Industry
Refinery & Petrochemical Industry
Chemical Industry
Water & Waste water Industry
Pharmaceutical Industry
Marine Industry

Product Enquiry

Product Enquiry Form

Why Double Offset Butterfly Valve?

Stellite hard face on the disc sealing face can be provided upon request.
Live loading can be provided, which maintain constant pressure on the gland.
Low emission packing set available for special service.
ISO 5211 top mounting plate for direct mounting of a wide range of actuators and gears.