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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PTFE Coated Graphite Gasket
PTFE Coated Graphite Gasket
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