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Micro-mesh PTFE gasket for glass lined equipment.

GYLON® 3540 gasket is a highly compressible micro-mesh PTFE gasket designed for uneven surfaces and suitable for flanges with low stress, such as glass-lined flanges and equipment.

Features / Benefits
  • Tighter seal
  • Highly compressible PTFE seal under low bolt load
  • Compressible material adapts to uneven surfaces, especially suitable for warped, dentted or scratched flanges
  • Reduced cold flow and creep
  • Pure PTFE is resistant to many chemicals
  • Soft PTFE is easily cut from larger plates, reducing inventory costs and costly downtime
  • Does not support combustion
  • Does not support bacterial growth
specification
  • Shape is plate or cutting gasket
  • white
  • Microgrid PTFE
  • Meets FDA regulations
  • Minimum temperature: -450 ° F / -268 ° C
  • Maximum temperature: 500 ° F / 260 ° C
  • Maximum pressure: 1200 PSI / 55 bar
  • PxT 1/16: 350,000 ° F x PSIG / 12,000 bar x ° C
  • PxT 1/8: 250,000 ° F x PSIG / 8,600 bar x ° C
application
  • Suitable for many non-metallic flanges *
  • strong base
  • strong acid
  • hydrocarbon
  • chlorine
  • Cryogenic substance
  • Glass lined equipment
* For flat flanges, when applied to liquids with a pressure of 150 psig, we recommend a minimum compressive stress of 1,500 psi on the gasket contact surface. Consult the flange manufacturer to confirm that sufficient compressive stress can be achieved.
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