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High-Performance Triple-Offset Lug Butterfly Valve Featuring Metal Seat Extended Service Life Zero Leakage

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High-Performance Triple-Offset Lug Butterfly Valve Featuring Metal Seat Extended Service Life Zero Leakage

Name: HighPerformance TripleOffset Lug Butterfly Valve Featuring Metal Seat Extended Service Life Zero Leakage
Brand: VESON
Price: 150 USD

Buy cheap High-Performance Triple-Offset Lug Butterfly Valve Featuring Metal Seat Extended Service Life Zero Leakage product

Disc Material : CF8M SS316 / Duplex / Inconel

Leakage Class : Zero Leakage (Class VI)

Certification : ISO 9001:2015 SGS

Seat Type : Laminated Metal / Stellite Hardfaced

Supply Ability : 3000 Pieces per Month

Pressure Rating : ANSI 150lb / 300lb / 600lb

Brand Name : VESON

Size Range : DN80 to DN1200 (3" to 48")

Delivery Time : 3-5 working days for stock, 15-25 days for production

Operation : Manual Gear / Pneumatic / Electric Actuator

Payment Terms : T/T,L/C,PayPal,Western Union

Price : USD 150-3500 / Piece

Place of Origin : Shanghai, China

MOQ : 1 Piece

Body Material : WCB Carbon Steel / CF8M SS316

Fire Safe : API 607 / ISO 10497 Certified

Certificate : ISO 9001:2015, SGS, API 607

Valve Type : Triple-Offset Lug Butterfly Valve

Packaging Details : VESON branded plywood case with shock-proof foam insert, export-grade packaging

End Connection : Lug (ANSI B16.5)

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High-Performance Triple-Offset Lug Butterfly Valve with Metal Seat

The VESON Triple-Offset High-Performance Lug Butterfly Valve represents the premium tier of butterfly valve technology. The triple-offset design eliminates friction between disc and seat throughout the full stroke, while the metal-to-metal seating delivers zero leakage and fire-safe performance for critical isolation applications in oil and gas, petrochemical, and power generation.

Triple-Offset Explained

Offset	Function
1st Offset	Shaft positioned behind the seat plane, creating a cam-action seal
2nd Offset	Shaft positioned offset from the bore centerline, enabling full disc clearance
3rd Offset	Conical seat angle geometry, eliminating sliding friction for extended seat life

Key Features

Metal-to-Metal Seating: Laminated stainless steel/graphite seat ring provides zero leakage with fire-safe compliance to API 607
Friction-Free Operation: Triple-offset geometry ensures disc lifts off seat instantly without rubbing, extending seat life to 100,000+ cycles
High-Temperature Rated: Suitable for temperatures from -196°C (cryogenic) to +800°C with appropriate trim materials
Bi-Directional Sealing: Full-rated shutoff in both flow directions eliminates installation orientation constraints
Stellite Hardfacing: Optional Stellite 6 or 21 hardfacing on seat and disc for superior wear resistance in abrasive service

Technical Specifications

Parameter	Specification
Valve Type	Triple-Offset Lug Butterfly Valve
Size Range	DN80 to DN1200 (3" to 48")
Pressure Rating	ANSI 150lb / 300lb / 600lb
Body Material	WCB Carbon Steel / CF8M SS316
Disc Material	CF8M SS316 / Duplex / Inconel
Seat Type	Laminated Metal / Stellite Hardfaced
Operation	Manual Gear / Pneumatic / Electric Actuator
Fire Safe	API 607 / ISO 10497 Compliant
Leakage Class	Zero Leakage (Class VI)
Operating Temperature	-196°C to +800°C
Certificate	ISO 9001:2015, SGS, API 607

Target Applications

Refinery critical isolation valves
Petrochemical process shutoff
Steam and thermal oil systems
Cryogenic LNG and ethylene service
Power plant main steam isolation

Each valve undergoes factory hydrostatic, pneumatic, and fire-safe type testing. Full PMI, NDE, and functional test documentation provided.

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