PTFE envelope gasket are type of static seal. It is composed of elastic materials such as compressed non-asbestos sheet ,rubber,Ceramics, etc., and a PTFE envelope cove
&©|12288;&©|12288;PTFE has superior properties against chemical (not affected by all chemicals except molten alkali metal and fluorine at elevated temperature) and a wide working temperature range. (from ?80~260&©|8451;) the coefficient of static and dynamic friction of PTFE are very low. PTFE is the best of the “non-stick?materials. It has excellent weathering and aging characteristics.
&©|12288;&©|12288;Application:PTFE envelope gasket is used to seal pipe flanges glass lined, PVC or FRP. Low bolt torque effecting a seal and chemical co***tibility is a main characteristic of this type of gasket. |
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