Home/Products/High Performance Double Offset Butterfly Valves

High Performance Double Offset Butterfly Valves

Butterfly

Back to All Products
High Performance Double Offset Butterfly Valves
API 609ASME B16.34

Sizes 50mm–1000mm (2"–40"), Class 150–300. PTFE & metal seat options. Wafer, lugged & flanged ends.

Size Range50mm–1000mm
Pressure RatingClass 150–300
Body StylesWafer, lugged and double-flanged
Design StandardAPI 609 Category B / ASME B16.34
Soft-seat TestingAPI 598
Metal-seat LeakageANSI / FCI 70-2 Class IV
TemperatureMetal-seat combinations available up to 600°C, subject to material selection
Production Capacity24,000 units/year
CategoryButterfly

Key Features

Engineered for Performance

  • Double-eccentric cam action
  • Bubble-tight PTFE / RPTFE shutoff
  • Greatly reduced seat wear and operating torque
  • Blowout-proof one-piece stem
  • ISO 5211 direct actuator mounting
  • Live-loaded adjustable gland packing
  • Fire-safe secondary metal seat option
Request a Quote

Need custom specifications? Our engineering team can help you find the right solution.

Material Options

Typical Materials of Construction

BodyASTM A216 WCB carbon steel; ASTM A351 CF8, CF8M or CN7M stainless steel; duplex grades
DiscASTM A351 CF8, CF8M or CN7M stainless steel; duplex grades
SeatPTFE, RPTFE, ASTM A240 Type 316 or Inconel
StemASTM A564 Type 630 (17-4PH), Inconel 625, duplex or ASTM A276 Type 316
Stem bearingSS-backed PTFE, Inconel-backed PTFE or Ni-Resist

Final material selection depends on pressure, temperature, media and service conditions.

Applications

Common Service Areas

  • Oil & gas
  • Sea water & brine
  • Hydrocarbons
  • Power plants
  • Petrochemicals
  • Oxygen service
  • Exhaust gas
  • Slurries
  • HVAC

Related Products

More in Butterfly

Large Diameter Flanged Butterfly Valves

Large Diameter Flanged Butterfly Valves

EN 593AWWA C504ASME B16.34

Sizes 150mm–3000mm (6"–120"), PN 6–16. Double offset with rubber lined body option. Flanged ends.

View Details
Centreline Butterfly Valves

Centreline Butterfly Valves

API 609EN 593ASME B16.34

Sizes 50mm–1000mm (2"–40"), PN 6–16. Centreline design with replaceable or bonded seat. Wafer & lugged ends.

View Details
Triple Offset Butterfly Valves

Triple Offset Butterfly Valves

API 609ASME B16.34

Sizes 80mm–1800mm (3"–72"), Class 150–600. Metal-to-metal zero-leakage seating. Heavy duty, tight shutoff, replacing gate & ball valves.

View Details

Your Flow Challenge Deserves More Than a Catalogue.

Our engineering team works with you to specify, design, and deliver the exact valve solution your application demands.

Talk to Our Engineers