Cryogenic Trunnion Mounted DBB Ball Valve F316 - Gear Operated | Reliable China Suppliers & Factory

The trunnion mounted ball design mechanically supports the ball from both top and bottom, which distributes pipeline loads away from the seats. This significantly reduces seat wear and extends the overall service life of the valve, especially in high-pressure cryogenic applications.

The extended stem creates a thermal barrier between the cryogenic media and the packing or actuator. This prevents cold temperature transfer that could cause packing failure or actuator malfunction. The anti-blowout feature also ensures the stem remains securely retained under full operating pressure.

Lip seals are specifically engineered to maintain their flexibility and sealing integrity even at extreme cryogenic temperatures (down to -196°C / -320°F). Unlike standard seals that may become brittle and lose their sealing capability, lip seals provide consistent, reliable sealing under these demanding conditions.

ISO 5211 is an international standard that defines the interface dimensions between a valve and its actuator or operator. By conforming to this standard, the worm gear operator allows easy interchangeability and direct mounting of electric or pneumatic actuators without the need for additional adapters, saving time and cost during upgrades.

Yes. Thanks to the ISO 5211 compliant mounting pad on the worm gear operator, these valves can be easily upgraded from manual operation to electric or pneumatic actuation. This makes them highly versatile for automated pipeline systems and remote-controlled process environments.

These cryogenic ball valves are designed for applications involving liquefied gases such as LNG (liquefied natural gas), liquid nitrogen, liquid oxygen, and liquid argon. They are widely used in LNG terminals, cryogenic storage facilities, air separation plants, and industrial gas processing systems where reliable shut-off at extreme low temperatures is critical.