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PTFE envelope gasket are use for type of static seal. PTFE envelope gasket is composed of elastic materials. such as PTFE envelope gasket composed of compressed non-asbestos sheet and a PTFE envelope cove,PTFE envelope gasket composed of rubber and a PTFE envelope cove,PTFE envelope gasket composed of Ceramics and a PTFE envelope cove,etc.PTFE envelope gasket has superior properties against chemical (not affected by all chemicals except molten alkali metal and fluorine at elevated temperature).PTFE envelope gasket has a wide working temperature range. (180-260).PTFE envelope gasket has low coefficient of static and dynamic friction. PTFE envelope gasket is the best of the non-stick materials. PTFE envelope gasket has excellent weathering and aging characteristics.PTFE envelope gasket is used to seal pipe flanges glass lined, PVC or FRP.PTFE envelope gasket has low bolt torque effecting a seal and chemical compatibility.
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