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

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

OffsetFunction
1st OffsetShaft positioned behind the seat plane, creating a cam-action seal
2nd OffsetShaft positioned offset from the bore centerline, enabling full disc clearance
3rd OffsetConical 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

ParameterSpecification
Valve TypeTriple-Offset Lug Butterfly Valve
Size RangeDN80 to DN1200 (3" to 48")
Pressure RatingANSI 150lb / 300lb / 600lb
Body MaterialWCB Carbon Steel / CF8M SS316
Disc MaterialCF8M SS316 / Duplex / Inconel
Seat TypeLaminated Metal / Stellite Hardfaced
OperationManual Gear / Pneumatic / Electric Actuator
Fire SafeAPI 607 / ISO 10497 Compliant
Leakage ClassZero Leakage (Class VI)
Operating Temperature-196°C to +800°C
CertificateISO 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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High-Performance Triple-Offset Lug Butterfly Valve Featuring Metal Seat Extended Service Life Zero Leakage

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

Veson Valve Ltd.

Verified Supplier
8 Years
Since 2007
Business Type :
Manufacturer, Exporter
Main Products :
Pneumatic Air Actuator, Pneumatic Rack And Pinion Actuator, Scotch Yoke Pneumatic Actuator
Total Annual :
5000000-7000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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