How to keep the gasket effectively sealed for a long time
2019-10-04 03:04:52
Any type of gasket must have the following eight important features to ensure effective sealing for long periods of time in harsh environments:
1. Air tightness of anti-corrosion gasket For the medium of the sealing system, the gasket will not leak at the recommended temperature and pressure for a certain period of time.
2. The contact surface of the compressible gasket and the flange should be well matched after the connecting bolt is tightened to ensure the seal.
3, creep resistance gasket Under the influence of pressure load and use temperature, the creep resistance should be better, otherwise it will cause bolt torque loss, resulting in a reduction of the surface stress of the gasket, and thus hard gas system leakage.
4, the chemical resistance of the selected gasket should be free from corrosion of chemical media, and can not contaminate the media.
5. Resilience Even under the condition of stable system, the two flanges connected with each other will certainly have slight displacement due to the influence of temperature and pressure. The elastic function of the gasket should be able to compensate this displacement to ensure the system's tightness.
6, anti-adhesion gaskets should be able to easily remove from the flange after use, do not stick.
7. Non-corrosive gaskets should not corrode the flanged surfaces.
8. The gasket used for temperature resistance should be used normally under the lowest temperature and highest temperature of the system.
1. Air tightness of anti-corrosion gasket For the medium of the sealing system, the gasket will not leak at the recommended temperature and pressure for a certain period of time.
2. The contact surface of the compressible gasket and the flange should be well matched after the connecting bolt is tightened to ensure the seal.
3, creep resistance gasket Under the influence of pressure load and use temperature, the creep resistance should be better, otherwise it will cause bolt torque loss, resulting in a reduction of the surface stress of the gasket, and thus hard gas system leakage.
4, the chemical resistance of the selected gasket should be free from corrosion of chemical media, and can not contaminate the media.
5. Resilience Even under the condition of stable system, the two flanges connected with each other will certainly have slight displacement due to the influence of temperature and pressure. The elastic function of the gasket should be able to compensate this displacement to ensure the system's tightness.
6, anti-adhesion gaskets should be able to easily remove from the flange after use, do not stick.
7. Non-corrosive gaskets should not corrode the flanged surfaces.
8. The gasket used for temperature resistance should be used normally under the lowest temperature and highest temperature of the system.
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