Installation and disassembly of a centrifugal pump mechanical seal
1. Check the mechanical seal components and the parts of the installation parts for damage before installation.
2. The moving ring and the static ring end face should be coated with oil before assembling the mechanical seal of the centrifugal pump. For the friction section inspection of the moving ring and the static ring, there must be no collision.
3, should pay attention to adjust the compression of the spring, not too loose or too tight, pay attention to eliminate the deviation
4, the mechanical seal of the screw should pay attention to uniform force, to avoid uneven tightening force can easily lead to damage to the mechanical seal.
5. When disassembling the mechanical seal, pay attention to the disassembly order of the parts.
Analysis of the causes of failure of centrifugal pump seal
1. The mechanical ring and the static ring end face are worn.
2. The mechanically sealed fixing screws are loose or not tightened under long-term work, resulting in mechanical seal failure or moving ring tilting.
3. There is a debris in the mechanical seal between the moving ring and the stationary ring end.
4, mechanical seal dynamic and static ring assembly deflection
