About metal wound gasket
Metal wound gasket is a kind of sealing gasket widely used at present. It is the gasket with the best resilience in semi-metallic gaskets. It is made of V-shaped or W-shaped thin steel strips alternately wound with various fillers. High temperature, high pressure and use under the conditions of ultra-low temperature or vacuum. By changing the material combination of the gasket, the problem of chemical corrosion of the gasket by various media can be solved. Its structural density can be made according to different locking force requirements. The main body and accurate positioning, the winding gasket is provided with a metal inner reinforcing ring and an outer positioning ring. The inner and outer steel rings are used to control its maximum compression degree, and the surface accuracy of the flange sealing surface contacted by the gasket is not high.
For the convenience of installation on the appearance design of the flange gasket, the metal wound gasket is welded with 2 ~ 8 positioning bands on the periphery of the gasket according to the diameter of the gasket, so that the positioning band is buckled on the flange hole to prevent the gasket from being installed. Displacement or falling off, currently mainly used for sealing flange connections of pipelines, valves, pressure vessels, condensers, heat exchangers, towers, manholes, hand holes, etc. in the petroleum, chemical, metallurgy, power, shipbuilding, machinery and other industries .