Centrifugal pump flange connection liquid leakage caused by the following 5 reasons:
1. The working medium in a centrifugal pump temperature change is too large is one of the reasons caused the leakage of flange joints. Because the bolt is not directly in contact with the pipe, so the change of the bolt temperature lags behind the change of the flange temperature. When the pipeline temperature dropped rapidly, the bolt temperature has not decreased, which resulted in temperature difference of flange and bolt, so that their expansion is not the same, causes the flange tightening force disappeared, cause fluid leakage.
2. The flange connection of the heat insulation is not good or no heat preservation material.
3. The bolt materials do not meet the requirements, or misuse of the bolt material should not use the.
4. The flange joint surface of the metal tooth shaped gasket material is not qualified, or the position of the tooth shaped pad is not suitable.
5. The flange bolts bearing unevenness, or bolt fastening in tight, will cause leakage of liquid on the surface of the flange joint
