Description
Size Range(s)
- NPS 2-1/2 – 6
- (DN 65 – 150)
Pressure Rating
- ASME Classes 600 – 1500
Standard Connections
- Butt Weld
Bolted Bonnet Bellow Seal Flexible Wedge Gate Valves
- 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.
- Two secondary stem seals: a) Backseat in open position; b) Graphite packing.
- Forged for higher safety: Increased toughness, strength and fatigue resistance.
- Two-part bellows.
- 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.
