Cryogenic Ball Valve Selection for LNG: Extended Bonnet, Seat Materials and Testing
Quick Summary: Selecting a cryogenic ball valve for LNG requires more than specifying stainless steel and a low-temperature rating. LNG valve procurement should verify minimum design temperature, low-temperature material toughness, extended bonnet geometry, cryogenic seat materials, cavity pressure relief, installation direction, cryogenic testing and project documentation. For EPC and LNG terminal projects, buyers should confirm […]
Trunnion Ball Valve Design: Seats, DBB & Selection
Trunnion Ball Valve Design Guide: Seats, DBB, Cavity Relief, Torque and Pipeline Selection A trunnion mounted ball valve is a quarter-turn isolation valve in which the ball is mechanically supported rather than allowed to move freely between the seats. That fixed-ball arrangement changes how pressure loads are carried, how the seats create sealing force, how […]
Trunnion Ball Valve Design Guide: Seats, DBB, Cavity Relief, Torque and Pipeline Selection
Trunnion Ball Valve Design Guide: Seats, DBB, Cavity Relief, Torque and Pipeline Selection A trunnion mounted ball valve is a quarter-turn isolation valve in which the ball is mechanically supported rather than allowed to move freely between the seats. That fixed-ball arrangement changes how pressure loads are carried, how the seats create sealing force, how […]