PTFE gasket is a kind of gasket which is widely used at present. It is the gasket with the best resilience in the semi-metal gasket. It is made of V-shaped or W-shaped thin steel strip and various fillers. It can withstand high temperature, high pressure and adapt to ultra-low temperature or vacuum conditions. In order to strengthen the main body and accurately locate, the PTFE gasket is provided with a metal inner reinforcement ring and an outer positioning ring, and the inner and outer steel rings are used to control the maximum compression degree. The surface precision of the flange sealing surface contacting the gasket is not high.

By changing the material combination of the gasket, the chemical corrosion of the gasket can be solved by various media, and the structural density can be made according to different locking force requirements, and the PTFE gasket with excellent resilience can be applied to the pipeline system. The pressure thermal cycle and vibration are automatically adjusted, especially suitable for occasions where the load is uneven, the joint force is easy to relax, the temperature and pressure are periodically changed, and there is shock or vibration. It is a static sealing original for valves, pumps, heat exchangers, towers, manholes, hand holes, etc. It is widely used in petrochemical, machinery, electric power, metallurgy, and other departments. PTFE seals, gaskets, gaskets, Teflon seals, gaskets, and gaskets are molded by suspension polymerization of polytetrafluoroethylene resin. Teflon has excellent chemical resistance and temperature resistance compared to other plastics, and it has been widely used as a sealing material and a filling material.