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Home > Product Division > Valves > Butterfly Valve > Double Offset

Double Offset, Butterfly Valve

Metaval’s Double Offset Butterfly Valve is designed for higher pressure and temperature applications where long life and improved sealing are required. By offsetting both the stem and the disc, this design reduces seat contact during operation, lowering wear and torque. It’s the ideal balance between performance, economy, and durability, suitable for both soft and metal seated configurations.

Size Range

2” to 48”

DN Range:

50 to 1200

PN Range:

PN 10 to PN 64

Size Range:

2” to 48”

DN Range:

DN 50 to 1200

PN Range:

PN 10 to PN 64

Pressure Rating:

Class 150 / 300 / 600

Temperature Range:

Up to 400°C (depending on materials)

End Connections:

Wafer, Lug, Flanged, Semi-Lug

  • Valve Design: API 609, EN 593, BS 5155, AS4795.2, ISO 5752
  • Material Standards: EN 16668
  • Face-to-Face: API 609, EN 593, EN 558, ISO 5752, ASME B16.10
  • Top Flange: ISO 5211
  • Flange Drilling: EN 1092-1, AS 2129, AS 4087, BS 5155, ASME B16.5/B16.47
  • Testing Standards: EN 12266-1 & 2, API 598

Body: WCB, CF8, CF8M, CF3M, Ductile Iron, Duplex, Super Duplex, Monel, Inconel
Disc: Stainless Steel, Duplex, Super Duplex, Monel, Inconel
Seat: Soft (EPDM, PTFE, Viton, PFA) or Metal Seated (Hard-faced SS)
Stem: Stainless Steel (410, 304, 316), others on request
Gasket: Spiral Wound SS / Graphite / PTFE

  • Double Offset Geometry: Minimizes disc-seat contact for lower wear
  • Soft and Metal Seated Options: Versatile for standard or severe service
  • Bi-directional Shut-off: Reliable sealing in both flow directions
  • High-Performance Sealing: Enhanced pressure and temperature resistance
  • Fire Safe Design: Available as per API 607
  • Actuation Ready: ISO 5211 top flange for direct actuator mounting
  • Hydrostatic Shell and Seat Testing
  • Pneumatic Seat Leakage Test
  • Fugitive Emission Testing (optional)
  • PMI, RT, UT, MPI, DPT
  • Hardness, Tensile, Microstructure Analysis
  • Surface Finish, Spectrometer Testing
  • Dimensional Verification and Oxygen Cleaning
  • Oil and Gas
  • Chemical and Petrochemical Plants
  • Power Generation
  • Desalination
  • Water Transmission and Distribution
  • Pulp and Paper Industry
  • Fire Water and Cooling Water Systems
  • Corrosive Liquids
  • Steam
  • Slurries
  • Industrial Water
  • Hydrocarbons
  • Gases and Vapors
  • CE Certified
  • Pressure Equipment Directive (PED 2014/68/EU)
  • ISO 9001:2015 – Quality Management
  • ISO 14001:2015 – Environmental Management
  • ISO 45001:2018 – Occupational Health & Safety
  • Fire Safe Design as per API 607

Documentation

Complete In-House Manufacturing Control

From forging and casting to machining, assembly, and testing — every step is managed under one roof to ensure consistent quality, faster lead times, and zero compromise.

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