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Industrial Valves
Butterfly Valve

Butterfly Valves

Our butterfly valves are low torque, quarter turn, rotary action with a straight through flow configuration in which a disk is turned in axial trunnion bearings onto a single seat and intrudes into the flow passage in the fully open position. Their compact design may be obtained with or without flange and lining. seats may soft or metal.

There are two main types:

  • Conventional – shaft passes through the disk axis and they are generally soft(elastomer) seated for low pressure
  • High Performance – with offset disk/seats and soft or metal seated for higher pressure

Valve Specs

Valve DesignWafer, Lug, Flanged
ConstructionSingle, Double or Triple Eccentric Disk
Trim DesignTrunnion
Size2" - 72"
Pressure Range150# - 600#
DesignAPI 609 - BS 16.34
BoreFull
MaterialsCarbon Steel, Stainless Steel
Bronze
Conform To NACE MR 01-75
Material StatusForged or Cast
SeatsSoft or Metal
SealsO-Rings
TestingAPI 598 - API 6D
OperatorWrench, Gear, Actuated

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