High Temperature Metal Seated Ball Valve

ALIS Valves offers High Temperature Metal Seated Ball Valves for industrial applications requiring reliable flow isolation and durable performance under elevated temperature conditions. These valves feature a spherical ball with a central bore that rotates to open or close the flow passage, providing dependable on-off control for compatible process media. The metal-to-metal seating arrangement uses metallic sealing surfaces designed to withstand demanding thermal conditions where conventional soft seats may not be suitable. Depending on the application, heat-resistant body and ball materials, metallic seat components, suitable surface treatments and high-temperature stem packing can be selected to meet the specified operating requirements. The valve design helps reduce the risk of seat degradation associated with elevated temperatures, while manual, pneumatic or electric actuation options may be available to suit different operating and automation needs.

High Temperature Metal Seated Ball Valves are used in power generation plants, refineries, petrochemical facilities, steel manufacturing, thermal oil systems and industrial processes involving hot gases, steam or other compatible high-temperature media. Their suitability depends on the selected materials, pressure rating, seat construction and temperature limits of the complete valve assembly. Important selection factors include maximum operating temperature, working pressure, valve size, process media, body and ball materials, metal seat design, allowable leakage rate and operating torque. Buyers should also evaluate thermal expansion, stem sealing, actuator temperature protection and the required shut-off performance. Metal-seated valves may have different leakage characteristics from soft-seated designs, so the required leakage class should be confirmed during specification. Selecting the appropriate valve configuration helps support dependable isolation, resistance to thermal degradation and reliable performance under the intended high-temperature operating conditions.