Double-eccentric Butterfly Valve

  • The yoke is designed according to ISO5211, which is convenient for installing gearbox, pneumatic or electric actuator.
  • In addition to the wear-resistant standard V-ring packing, graphite high-temperature packing and low-leakage packing can also be adopted.
  • The bi-directional sealing can be the option
Applicable Standard

Design Standard

API 609

Design

API609

Structure

lug type, wafer type, double flange type

Face to Face

API 609

End Flange

ASME B16.5, ASME B16.47

BW Ends

ASME B16.25

Inspection and Test

API 598

Material
Size Range 2"~120"(DN50~DN3000) Pressure Rating ASME CLASS 150~600(PN16~PN100)
Body Materials Carbon Steel, Stainless Steel, Alloy Steel, Nickel Aluminum Bronze etc. Ball Materials Carbon Steel, Stainless Steel, Alloy Steel, Nickel Aluminum Bronze etc.
Stem Materials 410SS, 304SS&17-4PH,ect Seat Materials 316 SS Hardened PTFE, Graphite Laminated
Body Style Wafer, Lug and Double Flanged Operation Hand lever, Gear, Motor, Pneumatic, Hydraulic
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