Bolted bonnet bellows seal globe valves
Category: Gate, globe & check valves
Product line: Pressure seal (forged and cast steel)
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Features and benefits
● Long cycle life bellows (3000 cycles) in Gr. 321 (stainless) or Inconel. Designed and successfully tested in high pressure/temperature conditions.
● Two-part bellows.
● Two secondary stem seals: a) Backseat in open position; b) Graphite packing.
● Low torque due to: a) Non-rotating stem prevents torsion of bellows; b) Stem nut thrust bearings; c) Central lubrication.
● Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.
● Forged for higher safety: Increased toughness, strength and fatigue resistance.
● Guided disc: Seat and disc hardfaced with CoCr alloy, ground and lapped.
Product information
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| Cast steel bellows seal gate | Extended body bellows seal gate valves | Bellows seal globe valves, y-pattern |
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| Cast steel bellows seal globe | Bellows seal globe valves | Bellows seal gate valves |
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| Cast steel bellows seal gate | Cast steel bellows seal globe | Extended body bellows seal gate valves |
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| Bellows seal globe valves | Bellows seal gate valves |
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