Disc valve

with handwheelregulatingpressure seal

● 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 Stellite 6, ground and lapped.