Spiral wound gasket is formed of V-shaped of W-shape stainless steel stripe and soft nonmetallic packing or the material of flexible graphite asbestos, nonasbestos, PTFE etc by means of piled. It can use inner ring and outer ring as different material such as carbon steel, stainless steel 304, 316, 316L and etc. The static sealing element of pipe, valve, pump, thermal exchange, condensing motorcycle, auto vent-pipe, tower, plain hole and hole of flange, etc.
This gasket is similar to the basic type spiral wound gasket, however, it has an inner ring. Solid inner metal ring acts as a compression stop and fills the annular space between flange bore and the inside diameter. Designed to prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion of flange faces. It is suitable for male and female pipe flanges.
Inner & outer ring material
Normal thickness mm
Inner & outer ring