Triple Offset Butterfly Valve

Product Specifications

Product Type	Triple Offset Butterfly Valve Side Entry / Top Entry Full Bore / Reduced Bore Cast / Forge 2Pc / 3Pc Design Bolted Body / Welded Body Soft Seated / Metal Seated
Valve Size	2" to 48"
Pressure Class	150, 300, 600, 900, 1500, 2500
Ends	RF, RTJ, BWE
Operation	Lever, Gear, Actuator (Pneumatic, Hydraulic, Electrical)
Materials	Carbon Steel, Stainless Steel, Alloy Steel, DSS & SDSS
Design Features	Anti-Static Design Anti-Blow out Stem Double Block & Bleed DIB-1 & DIB-2 Configuration Self Relieving / Non-Relieving Seats Drain & Vent Connections Sealant Injection in Seats & Stem

Triple offset butterfly valves (TOV) have three separate offsets as shown in the picture above to the right. Two offsets are placed from the center while the third is on the seating surface which creates a cone type shape of the disc and seat.

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

Product Enquiry

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Why Triple Offset Butterfly Valve?

Full internal weld overlay or weld overlay on seat pocket area and body cavity can be provided.
Fully welded ball valves can be provided eliminating the potential flange leak path.
Stem extension can be provided upon customer requirement.
Lip seals provided for low temperature services.
ISO 5211 top mounting plate for direct mounting of a wide range of actuators and gears.