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POWERgraf HP gaskets

Seal made of homogeneous film of multi-layer expanded graphite reinforced with a larger number of inserts. Very low oxidation value. For higher pressures and temperatures. Dimensions according to standards and to order.

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Product description

We offer graphite gaskets according to CSN, EN, DIN, ANSI standards as well as custom-made ones.

POWERgraf 5 PREMIUM seals are made from multilayer expanded graphite reinforced with a larger number of inserts from stainless steel reed perforated sheet without the use of adhesives. The material has a very low oxidation value and is suitable for higher pressures and temperatures.

Available seal thicknesses: 1.5 - 2.0 - 3.0 mm

Technical specifications

POWER®graf HPValues
Temperature range in oxidizing atmosphere-200 to +450 ºC
Maximum operating pressureup to 120 bar
Compressibility (ASTM F 36 A)30 - 40 %
Reciprocating suspension (ASTM F 36 A)4 - 5 %
Film specific gravity1,0 ± 5 % g/cm³
Graphite content> 99 %
Sulphur content< 750 ppm
Leachable chloride content< 40 ppm

Features

Feature Value Unit
Operating temperature Teplotní odolnost grafitu je ovlivněna jeho čistotou - čím vyšší čistota, tím nižší oxidace (úbytek materiálu) za vyšších teplot.
-200 to 450 °C
Operating pressure
0 to 40 bar
Non-standard pressure Vysekávaná těsnění jsou standardně dimenzovaná pro použití do 40 barů (v závislosti na typu spoje). Pro vyšší tlaky doporučujeme kovová těsnění nebo aplikaci konzultujte.
41 to 120 bar
Compressibility V závislosti na tloušťce materiálu.
30 - 40 %
Reverse suspension
4 - 5 %
Specific gravity of the foil 0 ± 5 %
1 g/cm³
Graphite content
> 99 %
Sulfur content
< 750 ppm %
Content of leachable chlorides
< 40 ppm -

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