Polytetrafluoroethylene seals are a kind of semi-metal flat gasket made of v-shaped or w-shaped thin steel strips and filled with ptfe. The chemical corrosion of gaskets can be solved by changing the material combination of the gasket. This kind of gasket is good for compression, with multi-channel sealing and certain self-tightening function, which can partially eliminate the influence of pressure, temperature change and mechanical vibration.
Unbonded flange surface for easy maintenance and replacement. It can maintain its excellent sealing performance under high temperature, low temperature, high vacuum, shock vibration and so on. It is suitable for the sealing part of the pipe, valve, pump, heat exchanger, tower, manhole, hand hole and so on. Through changing winding steel belt tensioning force, will change the density of winding gasket (hardness) to meet the needs of various application areas, are widely used in petrochemical, machinery, electric power, metallurgy, shipbuilding, medicine, atomic energy, and aerospace industries.