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กกกก 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
กกกกPTFE 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 จC180~260กๆ) the coefficient of static and dynamic friction of PTFE are very low. PTFE is the best of the กฐnon-stickกฑ materials. It has excellent weathering and aging characteristics.
กกกกApplication:PTFE envelope gasket is used to seal pipe flanges glass lined, PVC or FRP. Low bolt torque effecting a seal and chemical compatibility is a main characteristic of this type of gasket.

PTFE envelope gasket

Material ang type of PTFE envelope gaskets
FILLER MATERIALS Non-asbestos compressed sheet, Compressed fiber sheet, Asbestos compressed sheet Neoprene, Reinforced graphite sheet ,Corrugated steel
V-TYPE PTFE envelope gasket
U-TYPE PTFE envelope gasket
L-TYPE PTFE envelope gasket

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