Compressed fiber gaskets Planiflex™

Composition

PF41 - Cellulose fibres, inert filler and NBR binder

PF64 - Aramid fibres, inert filler and NBR binder

PF81 - Aramid fibres, graphite and inert filler and NBR binder

Characteristics

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

Applications

Planiflex™ can be applied continuously in the temperature range according to the data sheet 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™
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Properties thickness 1,5 mm Unit PF41 PF64 PF81
Binder -- NBR NBR NBR
Compressibility ASTM F 36 % 9 11 11
Recovery ASTM F 36 % 60 50 50
Tensile strength DIN 52910 N/mm2 8 8 8
Density +/- 5% g/cm3 1,8 1,9 1,9
Stress resistance DIN 52913        
16 h, 300 °C, 50 N/mm2 N/mm2 -- 22 22
16 h, 175 °C, 50 N/mm2 N/mm2 20 28 28
Thickness increase acc.to ASTM F 146
Oil IRM 903, 5 h, 150 °C % 10 5 5
ASTM Fuel B, 5 h, 23 °C % 10 5 5
Distilled water. 5h. 100°C % 4 2 2
Max. operating conditions
Peak temperature °C 180 350 350
Continuous temperature °C 140 250 250
Continuous temperature with steam °C 120 220 220
Pressure bar 40 100 100
Size 1500 x 1500
1500 x 3000		 60
Thickness 0,40 ÷ 5,00 1/32 ÷ 3/16