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PTFE Coated Graphite Gasket

PTFE Coated Graphite Gasket

PTFE/GRAPHITE GASKET PTG-90 Stick PTFE film on both sides of expanded graphite sheet or reinforced graphite gaskets. Cut it into different size as customers request. It has excellent corrosion resistance and compression resilient. Even under very low Pre-tightening torque, still have excellent...

  • Features & Specification

    PTFE/GRAPHITE GASKET PTG-90

    Stick PTFE film on both sides of expanded graphite sheet or reinforced graphite gaskets. Cut it into different size as customers request. It has excellent corrosion resistance and compression resilient.  Even under very low Pre-tightening torque, still have excellent sealbility. Special for hot press oil, LNG, LN2, and strong acid and alkali, etc. media.


         Code No


         
         Insert
         Material

    (N/mm2)
         DIN 52913
         Stability Under
         Compressive Stress

    Temperaure(℃)

    %
         ASTM F36A-66
         Compressibility

    %
         ASTM F36A-66
         Recovery

    cm2/min
         DN3535Gas Permeability
         (Thickness 1.5mm)

    (F-37B)
         Sealability
         ( Thickness 1.5mm)

    ASTM
         Sealing Constants


         ml/hr
         N2

    A ml/hr
         Buring oil A

    factor

    stress
         psi

    PTG-90


         Pure Graphite Gasket

    ≥30

    -240-280

    40-50

    15-30

    ≤0.4

    30

    <0.5

    2.0

    900

    PTG-90(R)


         Reinforced Graphite Gasket

    ≥45

    -240-280

    35-45

    15-25

    ≤0.4

    30

    <0.5

    2.5

    4000

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