Product Description: Suitable for uneven load, easy connection force relaxation, cyclical changes in temperature and pressure, there is shock or vibration of the occasion. A static seal original, widely used in petrochemical, machinery, electric power, metallurgy, shipbuilding, medicine, atomic energy and space sectors valves, pumps, heat exchangers, towers, manholes, hand holes and other flange connection. A wide range of operating conditions apply. High temperature, high pressure and adapt to the conditions or the use of ultra low temperature under vacuum. By changing the gasket material combinations, solve a variety of media for the gasket chemical corrosion problems. 2, the stress compensation ability. Temperature, pressure fluctuations frequent station, stable sealing performance and reliable. 3, excellent sealing performance. 4, in contact with the flange gasket sealing surfaces less precision. 5, easy installation, low pressure preload shim.