Compressed fiber gaskets Planiflex™ PF81F

Composition

Carbon fibres, inert filler, graphite and NBR binder.

Characteristics

The compressed fiber gaskets Planiflex™ PF81F are a material with an excellent sealing performance, usable with oils, gas, fuel and inorganic acids. Planiflex™ PF81F shows excellent stress retention properties and excellent sealing performance.

Applications

Planiflex™ PF81F can be applied  in the temperature range -40°C÷320°C and in the pressure ranges up to ratings 600 lbs and PN40. These gaskets show chemical compatibility in the pH range typical of that of nitrile rubbers.

Compressed fiber gaskets Planiflex™ PF81F
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Properties thickness 1,5 mm Unit Value
Binder -- NBR
Compressibility ASTM F 36 % 10
Recovery ASTM F 36 % 50
Tensile strength DIN 52910 N/mm2 9
Density +/- 5% g/cm3 1,9
Stress resistance DIN 52913
16 h, 300 °C, 50 N/mm2 N/mm2 25
16 h, 175 °C, 50 N/mm2 N/mm2 30
Thickness increase acc.to ASTM F 146
Oil IRM 903, 5 h, 150 °C % 5
ASTM Fuel B, 5 h, 23 °C % 6
Max. operating conditions
Peak temperature °C 400
Continuous temperature °C 320
Continuous temperature with steam °C 250
Pressure bar 100

 

Size 1.500 x 1.500
1.500 x 3.000		 60” x 60”
60" x 120"
Thickness 0.8 ÷ 5.0 1/64” ÷ 7/32”