The gasket performance indicators and installation

Gasket all kinds of variety, but for different environmental conditions are also different, but no matter Raw Materials what type of gasket, must have the following important elements of characteristics:
Tightness
Media, gaskets for sealing system leakage does not occur in the recommended temperature and pressure within a certain time.
Compressibility
The bolt is connected, the contact surface of the gasket and the flange should be able to agree well, in order to ensure the sealing.
Creep resistance
Gasket under the influence of the pressure load and the use temperature, creep resistance should preferably Otherwise Press to cause bolt torque loss, resulting in surface stress of the gasket is reduced, and thereby the the hard gas system leaks.
Resistance to chemical corrosion
The choice of the gasket should be excluded from the chemical media corrosion, and can not be contaminated medium.
Resilience
Even in conditions of stability of the system, connected to the two flanges due to the temperature and pressure will definitely be the presence of small displacement, gaskets elastic function should be able to compensate for this displacement to ensure the tightness of the system.
Anti-bonding
Gasket after use can easily be removed from the flange, non-adhesive
Non-corrosive
The connection flange gasket response surface non-corrosive.
Temperature-resistant
The choice of gasket should ensure that the minimum and maximum temperatures of the system under normal use.
Ensure sealing of the system in addition to have a good sealing material, but also following the correct installation:
1, the gasket must be placed in the exact center of the flange, is particularly important in the face flange;
2, to ensure the sealing surface Reinforced Graphite Gasket flatness and accuracy of processing;
3 must be symmetrical tightening the connecting bolts;
4 spring washers must be used in order to ensure that the load is evenly fastening bolts using the torque wrench;
5, and system operation, inspection and recalibration connecting bolt torque;
6, in order to guarantee the life of the gasket, do not use liquid or metal matrix anti-blocking agent or lubricant.