SPIRAL WOUND GASKETS

SPIRAL WOUND GASKETS

Sealing element with outer & inner ring: Flexitallic style CGI for use with raised and flat face flange configurations.

Spiral wound gaskets are widely used in many industries to seal a vast array of media across a wide range of temperatures and pressures. The key to the gaskets versatility is the inherently resilient sealing element. The spiral wound sealing element is manufactured by spirally winding a preformed metallic strip and filler material around the periphery of a metal mandrel.

Pressure Range: Full vacuum to > 450 bar
Temperature Range: -250C to 1050C

Materials: Spiral wound gaskets can be constructed using many different combinations of materials. Material selection is generally dictated by application conditions namely temperature, pressure and media. In the oil, gas and power generation industries a common sealing element material combination is 316 stainless steel metallic strip with Flexicarb™ (graphite) filler material. However gaskets made from many other material combinations are commonly available. General guidelines for filler material selection are as follows:
FlexicarbTM (Graphite): Hydrocarbon and steam service up to 450C
Thermiculite® (Silicate): Hydrocarbon, steam and chemical service up to 1050C
Polytetrafluoroethylene (PTFE): Chemical, oxygen and clean service up to 260C