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GEFA – Your Partner for Triple Eccentric Valves

Triple Eccentric Valve Type HGT 1

The seat sytem

Laminated seat

The laminated stainless steel/graphite seat ensures bi-directional, zero leakage shut-off throughout the full temperature range of -50 °C to +450 °C.

  • Bi-directional zero-leakage shut-off
  • Metal-Metal, frictionless non-interference disc operation
  • Continuous smooth jam-free operation due to the offset angle of the sealing surface
  • Laminated seat/seal system, made of stainless steel/graphite
  • Seat/seal system integral to valve body - not on the disc
  • The insert ring, mounted against the direction of flow, actively protects the laminated seat/seal system against wear.
  • Additionally the laminated seat will not wear prematurely as it is common with laminated disc seal systems.
  • The flexible metal laminated seat/seal system is securely fastened by the insert ring positioned in front. The floating, self-centered design of the laminated seat/seal system ensures accurate mounting in the valve body.
  • When re-seating the disc, the laminated seat/seal system self-centres to the disc.
  • The elasticity of the laminated seat/seal system ensures uniform peripheral sealing with the disc.
  • Zero leakage acc. to DIN EN 12266-part 1, leakage rate A as well as low torques and continuous smooth operation.

 

 

 

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