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Product Detail

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Bolted bonnet bellows seal flexible wedge gate valves

Description

Low torque due to: a) Non-rotating stem prevents torsion of bellows; b) Stem nut thrust bearings; c) Central lubrication. Seating faces hardfaced with CoCr alloy, ground and lapped.



Features and benefits

  •  Long cycle life bellows (2000 cycles) in Gr. 321 (stainless) or Inconel. Designed for, and successfully tested in high pressure/temperature conditions.
  • Bellows monitoring port (optional): Connected to the space above the bellows to monitor performance.
  • Non-rotating stem prevents torsion of bellows.