Trunnion Mounted Cryogenic Ball Valve

ALIS Valves offers Trunnion Mounted Cryogenic Ball Valves for industrial applications requiring reliable flow isolation and dependable operation at extremely low temperatures. These valves feature a trunnion-mounted ball supported at the top and bottom, helping maintain stable ball positioning and reduce excessive loads on the valve seats under high-pressure conditions. The ball rotates to align its bore with the pipeline for flow or turns to block the passage for shut-off. The cryogenic design incorporates suitable low-temperature body materials, ball and seat components, and sealing arrangements to maintain performance under specified operating conditions. An extended bonnet or stem arrangement can help keep the stem packing and actuator away from the coldest process zone, reducing the risk of excessive cooling at temperature-sensitive components. Depending on the application, the valve can be equipped with manual, pneumatic or electric actuation for reliable operation and integration with industrial control systems.

Trunnion Mounted Cryogenic Ball Valves are used in liquefied natural gas (LNG) terminals, natural gas processing plants, cryogenic storage facilities, industrial gas systems and other low-temperature process installations. Depending on the selected materials, pressure rating and sealing configuration, they can be specified for compatible cryogenic liquids and gases within their rated operating limits. Important selection factors include minimum operating temperature, working pressure, valve size, process media, body and seat materials, stem extension requirements, end connection standard and leakage performance. Buyers should also evaluate thermal contraction, low-temperature sealing reliability, actuator compatibility and required fire-safe or industry-standard qualifications where applicable. For liquid oxygen service, material compatibility and cleanliness requirements must be verified carefully. Selecting a properly engineered trunnion-mounted cryogenic valve helps support dependable isolation, stable ball operation and reliable performance under demanding low-temperature conditions.