Compressed fiber gaskets Planiflex™ PF81

Composition

Aramid fibres, inert filler, graphite and NBR binder.

Characteristics

The compressed fiber gaskets Planiflex™ PF81 are a material with an excellent sealing performance, usable with oils, gas, fuel and inorganic acids. Planiflex™ PF81 shows excellent stress retention properties and excellent sealing performance.

Applications

Planiflex™ PF81 can be applied in the temperature range -40°C÷250°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™ PF81
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Properties thickness 1,5 mm Unit Value
Binder -- NBR
Compressibility ASTM F 36 % 11
Recovery ASTM F 36 % 50
Tensile strength DIN 52910 N/mm2 8
Density +/- 5% g/cm3 1,9
Stress resistance DIN 52913
16 h, 300 °C, 50 N/mm2 N/mm2 22
16 h, 175 °C, 50 N/mm2 N/mm2 28
Thickness increase acc.to ASTM F 146
Oil IRM 903, 5 h, 150 °C % 5
ASTM Fuel B, 5 h, 23 °C % 5
Distilled water. 5h. 100°C % 2
Max. operating conditions
Peak temperature °C 350
Continuous temperature °C 250
Continuous temperature with steam °C 220
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”