Check the key points of the mechanical seal

Check the key points of mechanical seals. It is necessary to check the mechanical seals before assembling, especially to clean the moving ring, static ring and shaft sleeve completely. The following are some points to pay attention to when checking and cleaning the mechanical seal. 1. Checking the dynamic ring of the mechanical seal is the top priority to check the dynamic ring and static ring of the mechanical seal. When investigating, pay attention to whether there are defects such as scratches and cracks on the surface of the dynamic ring. If there are defects on the dynamic ring of the mechanical seal, There will definitely be leakage problems after use. When looking at the dynamic ring of the mechanical seal, use a professional tool to check whether the sealing surface is flat. If necessary, you can also do a hydraulic test on the mechanical seal. If the sealing surface of the dynamic ring of the mechanical seal enters pressure water, the dynamic ring will separate and seal. Invalidate.　　 When checking the dynamic ring seat of the mechanical seal, pay attention to whether there are any defects, such as whether there is damage to the dynamic ring seat, sealing rubber ring, etc., if there are defects, it will also lead to the failure of the mechanical seal. 2. Check other parts of the mechanical seal. When checking the shaft sleeve of the mechanical seal, pay attention to whether there are shortcomings such as burrs and groove marks; when checking the compensation spring of the mechanical seal, pay attention to whether there is deformation and damage. The mechanical seal is particularly Pay attention to whether the tenacious coefficient has changed. If the mechanical seal is equipped with pumping tissue, check whether the spiral of the mechanical seal is intact.　　 When checking the sealing rubber ring of the mechanical seal, pay attention to whether there are defects and impurities in the mechanical seal. If there are cracks or pores in the sealing rubber ring, it will affect the sealing effect in normal operation. In addition, when checking the rubber ring of the mechanical seal, pay attention to whether the diameter of the mechanical seal is within the scale of public service. Keywords: mechanical seal