Features and benefits

• 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.
• Two secondary stem seals: a) Backseat in open position; b) Graphite packing.
• Superior seating faces: Seats hardfaced with CoCr alloy, disc is solid CoCr alloy.