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Gasket for maximum corrosion resistance, long gasket life, excellent for most corrosive chemicals, widely using plastic flange sealing.
Material: PTFE , Non-asbestos, EPDM, Metal
PTFE Envelope gaskets have three structure PMF, PMS, PFT and PFF. Gaskets are manufactured by gasket core with a PTFE lamination. They combine the mechanical strength, resilience and bolt load retention of gasket with the chemical resistance of PTFE. They are used in equipment with glass; ceramic or glass coated steel flanges. Maximum service temperature is 500oF (260oC), the limit for PTFE.
Chemical, engineering, foodstuff, pharmaceutic industry where contamination is not allowed. Water, steam, oils, fuels, solvents, acids and alkalies except for strong oxidants.
Chemical engineering, foodstuff, pharmaceutic industry where high purity and corrosion resistance is required. Water, steam, oils, fuels, solvents, acids and alkalies except for strong oxidants.
It is most useful in slower shaft speed applications. The rubber core provides a low friction finish and prevents leakage through the braid. Chemical, paper, dye and fertilizer industries. Steam, fuels, water, dilute acids and alkalies, organic compounds, oils, greases and solvents, etc.