Inner and outer ring graphite spiral wound high pressure gasket
Profile
Can temperature, high pressure and adaptation cryopreservation or vacuum under the conditions use, by changing gasket material combination, can solve the various media gasket the chemical corrosion problem, its structure density on the basis of different locking force requirements to making for strengthening main body and the accurate localization, winding gasket with metal inner stiffening ring and outer retaining ring, taking advantage of steel ring to control its maximum pressure tightness, gasket contact flange sealing surface accuracy requirements not high.
Main purpose
The inner and outer metal winding gaskets with excellent resilience can automatically adjust the pressure thermal cycle and vibration of the pipeline system, especially suitable for uneven load, easy relaxation of joint force, periodic changes in temperature and pressure, occasions with shock or vibration. It is the static sealing original part at the flange joints of valves, pumps, heat exchangers, towers, manholes, hand holes, etc. It is widely used in petrochemical, machinery, electric power, metallurgy, shipbuilding, medicine, departments such as atomic energy and aerospace. For the convenience of installation in the appearance design of the flange pad, according to the diameter of the gasket, Weld 2~8 positioning belts on the periphery of the gasket, and make the positioning belts buckle on the flange hole, prevent the gasket from shifting or falling off during installation, thus saving auxiliary materials and working hours. Generally, it can be divided into the following types: the inner and outer metal winding gaskets adopt high-quality SUS304, SUS316 ("V" or "W") metal belts and other alloy materials and graphite, asbestos, polytetrafluoroethylene, the soft materials such as asbestos-free are alternately overlapping and spiral winding to each other, and the metal belt is fixed by spot welding at the beginning and end. The metal winding gasket is the gasket with the best resilience in the semi-metal sealing gasket. The structural density of the inner and outer metal winding gasket can be made according to different locking force requirements, and the internal and external steel rings are used to control its maximum compactness, and the surface precision of the flange sealing surface contacted by the internal and external winding gaskets is not high. The inner and outer metal winding gaskets are especially suitable for occasions where the load is uneven, the joint force is easy to relax, the temperature and pressure change periodically, and there is impact or vibration. Winding gasket is an ideal static seal for flange joints such as valves, pumps, heat exchangers, towers, manholes, hand holes, etc.
Application Scope
The flange joints of pipelines, valves, pressure vessels, condensers, heat exchangers, towers, manholes and hand holes in petroleum, chemical industry, metallurgy, electric power, ships, machinery and other industries are sealed.
Use of:
the use of Temperature: -196 ° C -650 ° C （Oxidation medium does not exceed 450 ° C)
the use of pressure ≤ 25MPa
gasket thickness :2.5-4.5 mm
Performance:
1, the scope of application-Canton. Can high temperatures, high pressure and adapt to ultra-low-temperature vacuum or use.
2, the ability of compensation. At high temperature, high pressure fluctuations frequent-position, the sealing performance stability and reliability.
3, a good sealing performance.
4, the use of the installation convenience
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