3-Piece Cryogenic Ball Valve

ALIS Valves offers 3-Piece Cryogenic Ball Valves for industrial applications requiring reliable flow isolation and convenient maintenance at extremely low temperatures. These valves feature a three-piece body construction consisting of a central body section and two end connections, allowing the valve to be disassembled for inspection, cleaning or servicing according to the manufacturer’s design. The ball contains a central bore that rotates to open or close the flow passage, providing dependable on-off control for compatible cryogenic media. The valve is engineered with suitable low-temperature body materials, ball and seat components, and sealing arrangements to maintain performance under specified cryogenic conditions. Depending on the design, an extended stem or bonnet can help keep stem packing and the actuator away from the coldest process zone. Manual, pneumatic or electric actuation options may be available to meet different operating requirements.

3-Piece Cryogenic Ball Valves are used in liquefied natural gas (LNG) facilities, industrial gas processing plants, cryogenic storage systems, liquid nitrogen applications and other low-temperature process installations. Depending on the specified materials, pressure rating and sealing configuration, they can be selected 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, connection type, stem extension requirements and leakage performance. Buyers should also consider thermal contraction, low-temperature sealing reliability, maintenance access and actuator compatibility where automation is required. For liquid oxygen service, material compatibility and cleanliness requirements must be verified carefully. The valve should be specifically rated for the intended cryogenic duty, as ordinary ball valves may not provide suitable low-temperature performance. Selecting the appropriate three-piece construction helps support dependable isolation, serviceability and reliable operation under specified cryogenic conditions.