Analysis of Failure of Mechanical Seal of Centrifugal Pump

① The main reasons for the leakage of the sealing surface of the dynamic and static rings of the centrifugal pump are: the flatness of the end surface, the roughness does not meet the requirements, or the surface is scratched; there is particulate matter between the end surfaces, which causes the two ends to not operate at the same time; the installation is not in place and the method is incorrect .

②The leakage of the sealing ring of the compensation ring is mainly caused by: deformation of the gland and uneven pre-tightening force; incorrect installation; the quality of the sealing ring does not meet the standard; the selection of the sealing ring is incorrect.