Rubber-metal gaskets

Rubber-metal gaskets

Rubber-metal gaskets of NBR, EPDM and Viton materials. Use for potable water, gas, industrial canalization, chemicals and more.

Availability on request.

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Rubber-metal gasket made of NBR material
  • Temperature up to 80 °C
  • KTW, DVGW Certifications
  • Potable water, gas, industrial canalization for an admixture of oils and petroleum substances
Rubber-metal gasket made of EPDM material
  • Temperature up to 100 °C.
  • Potable water, canalization for an admixture of acids, lyes and more.
Rubber-metal gasket made of Viton material
  • High temperatures
  • Chemicals
DThanks to the use of a mould for each individual gasket the vulcanization is carried out at 190 °C and high pressure.
  • Usually, the rubber in rolls is vulcanized at a temperature of 140 °C at the pressure indicated by the cushioning rollers only in vulcanization.
Individual gaskets as an intermediate of raw rubber are placed in moulds where the intermediate is 5-6 mm high. At +190 °C temperature and higher pressure, vulcanization leads to a perfect forming of the raw rubber in a mould with a gasket height of 3 mm. The excess rubber is pushed out of the mould and once the gaskets have cooled each individual gasket is manually cleaned from overflows thereby performing visual inspection of each individual gasket.

 
Advantages versus die-cut gaskets:
  1. Higher quality rubber with SHORE 85 hardness.
  • Thanks to higher gasket hardness it makes its installation easier when it is being inserted between flanges of large pipe diameters - up to DN 2 000 mm.
  • Thanks to higher hardness also longer gasket life.
 2. Higher rubber density due to higher vulcanization temperature and pressure.
  • The inner and outer edge is stabilised by the vulcanization without abrasions, making it much more resistant to tearing and blowing the gasket.
3. Each gasket is marked with a print bearing the material details and the manufacturer's mark.
  • The material is guaranteed for use with potable water or gas.

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