POWERgasket 350 A

Seal made of aramid fibre rubber plates with CSM binder. Good chemical resistance, for various aggressive media. Dimensions according to standards and to order.

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Product description

We offer fibre rubber seals according to ČSN, EN, DIN, ANSI standards as well as non-standard ones to order.

POWERgasket 350 A gaskets are made of fibre-rubber board made of aramid fibres with CSM binder.

  • For various aggressive media, very good chemical resistance to acids and alkalis.
  • Graphite coating, PTFE and antistatic coating on request.

Available seal thicknesses: 0.5 - 1.0 - 1.5 - 2.0 - 3.0 mm

Technical specification

POWER®gasket 350 AASTMValue
Temperature range in oxidizing atmosphereup to +200 ºC
Operating pressureup to 60 bar
CompressibilityF 368 %
Reverse suspensionF 3645 %
Weight increase:
5h / ASTM IRM 903 at 150 ºC
5h / ASTM Fuel B at +21 ÷ +29 ºC
F 146-
-
Increase in thickness:
5h / ASTM IRM 903 at 150 ºC
5h / ASTM Fuel B at +21 ÷ +29 ºC
F 146-
-
Tensile strength-10 N/mm²
Specific gravity-approx. 1,7 g/cm³

Features

Feature Value Unit
Operating temperature
0 to 150 °C
Operating pressure
0 to 40 bar
Non-standard temperature Vláknitpryžová těsnění bez ohledu na výrobce mají z důvodu obsahu pryže stálou teplotní odolnost maximálně 150 °C, při vyšších teplotách použití konzultujte.
151 to 200 °C
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 60 bar
Compressibility Metoda ASTM F 36
8 %
Reverse suspension Metoda ASTM F 36
45 %
Tensile strength
10 N/mm²
Specific gravity
1.7 g/cm³

Questions and Answers

For fibre rubber materials, it is generally true that the weakest part is the rubber, i.e. NBR, CSM, etc. In particular, the temperature resistance of elastomers ranges from -20 °C to maximum 150 °C. For this reason, the temperature resistance cannot be increased even by the addition of e.g. graphite, aramid, etc. Nevertheless, it is often argued that these materials can be used "short term" even at 350 °C. But can the term "short term" be specified?

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