spiral wound gasket adopts high quality SUS304, SUS316 ("V" shape or "W" shape) metal belt and other alloy materials and graphite, asbestos, polytetrafluoroethylene, non-asbestos and other soft materials alternately overlapping spiral winding, use spot welding to fix the metal band at the beginning and end. Metal spiral-wound gasket is the gasket with the best resilience in semi-metal sealing pad, and the structural density of metal spiral-wound gasket can be made according to different requirements of clamping force, and the internal and external steel rings are used to control its maximum compression degree, the surface accuracy requirement of flange sealing surface contacted by winding gasket is not high. Metal spiral-wound gasket is especially suitable for occasions with uneven load, easy relaxation of joint force, periodic changes of temperature and pressure, and shock or vibration. Spiral wound gasket is an ideal static seal original for flange joints such as valve, pump, heat exchanger, tower, manhole, hand hole, etc.
The flange joints of pipelines, valves, pressure vessels, condensers, heat exchanger, tower, manhole, hand hole and so on in industries such as petroleum, chemical industry, metallurgy, electric power, ship and machinery are sealed.