Positive Ball Cavity Relief- An upstream relief hole inthe ball prevents dangerous overpressure due to thermal expansion.Onextended stem valves through 2", a one-piece stem with alignment pinassures proper orientation of the ball.

Pressure Safe Stem- Both single piece and two-piece,assembled-inside-the-body stems are safe from blowout and aresupported with Polyfill®thrustwashers.

Zero Leak Packing- Belleville live loaded TFE packing ringsand stem centering followers assure zero leakage through the toughest,high cycle applications.

Effective Bonnet Extensions- The stem extensionsof Worcester Controls’ cryogenic valves conform to standard industrialpractices.That means wall thickness and lengths that keep heat transferdown, the packing frost free, operational torques low, and actuatorssolidly supported.

High Performance/Low Thermal Stress- Thespecial "part compatibility" design of valve parts, Polyfill seats and bodyseals assure tight shutoff, zero body leakage and low torque throughlarge thermal excursions from ambient to -425°f.

Valves Designed for Automation- Approximately40% of cryogenic installations require fail-safe operation or automaticon-off control.Worcester Controls has the pneumatic and electronic,computer compatible controls for your installation.

Valves Designed for Fire Safety- A Series 94double graphite stem sealed fire tight version of our cryogenic valve isavailable through the Custom Products Department.These valves areespecially effective in hydrogen and liquefied natural gas systems