Stronger, leakproof bolted body bonnet joint ensures joint tightness with a higher bolting torque.
Body guided disc eliminates side thrust and provides longer disc, seat and body life.
Impactor handwheel for tight shutoff.
Designed to ASME B16.34.
Long cycle life bellows (3000 cycles) in Gr. 321 (stainless) or Inconel. Designed and successfully tested in high pressure/temperature conditions.
Two secondary stem seals: a) Backseat in open position; b) Graphite packing.
Long cycle life bellows (10,000 cycles): Designed and qualification tested for high pressure/temperature applications.
Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.