Spiral wound gasket is a kind of sealing gasket widely used. It is the gasket with the best resilience in semi metal sealing gasket. It is composed of V-shaped or W-shaped thin steel strip and various fillers alternately. It can withstand high temperature, high pressure and adapt to the conditions of ultra-low temperature or vacuum. By changing the material combination of the gasket, the chemical corrosion problem of various media on the gasket can be solved, and its structure density can be improved The spiral wound gasket is made according to different locking force requirements. In order to strengthen the main body and accurately locate, the spiral wound gasket is equipped with metal inner reinforcing ring and outer locating ring. The maximum compression degree is controlled by the inner and outer steel ring, and the surface precision requirement of flange sealing surface contacted by gasket is not high.

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