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Views: 0 Author: Site Editor Publish Time: 2020-07-25 Origin: Site
Fire protection structure design of trunnion ball valve
J-VALVES trunnion ball valve is equipped with O-ring seal and metal graphite wound gasket in the sealing part of the valve. When the trunnion mounted ball valve is in fire, the valve seat sealing ring and seal made of non-metallic materials such as rubber and PTFE When gaskets, O-rings and other seals are damaged, the outer layer of metal graphite is wrapped with graphite to provide auxiliary sealing; when the sealing ring on the valve seat is burned, the metal valve seat will automatically form a metal seal with the ball under the thrust of the spring, effectively Control the internal leakage and external leakage of the valve. The design of the mounting trunnion ball valve fully meets the requirements of API 607, API 6FA, BS 6755 and JB/T 6899 and other standards and specifications, and has passed the API 607 fire test.