Compressed fiber gaskets Planiflex™ PF81R

Composition

Aramid fibres, graphite and NBR binder wire reinforced.

Characteristics

The compressed fiber gaskets Planiflex™ PF81R are a material with an excellent sealing performance, usable with oils, gas, fuel and inorganic acids. Planiflex™ PF81R shows excellent stress retention properties and excellent sealing performance.

Applications

Planiflex™ PF81R can be applied continuously 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™ PF81R
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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 15
Density +/- 5% g/cm3 2,3
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”x60”
60”x120”
Thickness 0.8 ÷ 5.0 1/32” ÷ 7/32"