®SIGRAFLEX a special variant of Waveline-WLP®

Challenge

Highly temperature resistant


High pressure gaskets must withstand high temperatures in the areas of power station technology as well as motor, plant and container fabrication. Frequently the limits for use of fibrous materials and exposed graphite are exceeded.

At the same time, unevenness and heat distortion have to be compensated for at the gasket surfaces.

 

 

Solution

®SIGRAFLEX, a special variant of Waveline-WLP®
meets most important user criteria when exposed graphite oxidises.

  • high thermal stability for applications to 650°C and higher (depending on installation and operating conditions)
  • good adaptivity to uneven and distorted gasket surfaces
  • good behaviour under changing temperatures, high pressure stability, bursting resistance, rigidity, long-term compression and spring-back behaviour.

Structure

The interior structure of the sheet consists of several 0.5 mm layers of high-grade graphite film and 0.05 mm layers of sheet metal and stainless steel foil.
The surface consists of a 0.05 mm layer of stainless steel foil 1.4401.
The entire compound is free of adhesives.

Waveline-WLP® design

  • reduces cross-section leakage through pre-compression of gasket and reduces surface leakage through "O ring effect"
  • reduces surface leakage of a flanged gasket in a particularly significant manner
  • compared to a smooth metal flange, it provides improved ease of installation due to increased rigidity

Inside flange

  • increases blow-off safety
  • protects medium and gasket from contamination
  • reduces cross-section leakage
  • increases buckling stability and improves handling

Application

  • increases blow-off safety
  • protects medium and gasket from contamination
  • reduces cross-section leakage
  • increases buckling stability and
  • improves handling

Benefits

  • good compressibility and spring-back, high pressure stability
  • thermal and chemical resistance, no material ageing
  • temperature resistant to 650° and good behaviour when subjected to temperature changes
  • extensive protection from oxidation
  • adhesive-free compound
  • high blow-off safety
  • no contamination of medium due to gasket
  • no contamination of gasket with toxic media
  • high installation safety and improved handling through Waveline WLP®