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Product Detail

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Bellows seal globe valves, hermetically-sealed y-pattern

Description

EASY IN-LINE SERVICING: Stem-bellows assembly can easily be removed and replaced on valves with threaded (O-ring seal) bonnet. On seal welded valves, removal and replacement of weld is necessary. Special power operated tools are available for cuttingt he seal weld.



Features and benefits

  • NO TORSION OF BELLOWS: Splined stem prevents torsion of bellow sand assures long cycle life.
  • LONG CYCLE LIFE BELLOWS (5000 cycles): Designed for, and successfully tested in, high pressure–temperature conditions.
  •  LOW TORQUE due to: a) Non-rotating stem; b) Stem nut thrust bearings; c) Central grease fitting for lubrication of stem nut.
  •  TWO SECONDARY STEM SEALS: a) Backseat; b) Stem packing.
  •  VALVES ARE FIRE SAFE: Operate normally during and after fire test.