In Piping Systems a Flange Gasket is placed between two connecting Flanges to create a leak proof seal. The three primary types of Flange Gaskets are Non-metallic, Semi metallic and Metal Gaskets.
The most widely used is the Spiral wound Flange Gasket, it is suitable for a wide range of temperature and pressure Classes. Normally a filler of Graphite or PTFE combined with a Stainless Steel or other Alloy is formed into a Spiral winding with a metal outer ring to seal the Flanged joint when compressed.
Spiral-Wound gasket is formed of V-shaped metallic stripe and soft non-metallic filler by means of piled, spiral wound and connected its end and beginning by dot welded. Depend on its excellent compression resilience it is suitable for sealing spots where the alteration of temperature and pressure are frequent. It can be used as the static sealing element of
pipe, valve, pump, thermal exchange, condensing tower, plain hole and man hole of flange, etc. It has been widely applied in the fields of petrochemical, mechanical manufactory, power station, metallurgy, ship building, medical and pharmaceutical nuclear power station and navigation, etc.
