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What are the precautions when installing mechanical seals

by:Lepu Seal     2021-07-29

If the mechanical seal wants to give full play to its use efficiency, it has strict operating requirements and precautions during installation, which can effectively achieve the purpose of improving the use of equipment and avoiding equipment failure.
   1. During installation, the surface in contact with the seal should be coated with a layer of clean mechanical oil for smooth installation;
  2. The sealing cavity of the equipment should be kept clean during installation, and the sealing parts should be cleaned to keep the sealing end face intact to prevent impurities and dust from being brought into the sealing part;
  3. It is strictly forbidden to knock and knock during the installation process, so as to avoid damage to the mechanical seal and cause seal failure;
  4. The vigorous runout of the shaft of the equipment should be ≤0.04mm, and the axial runout is not allowed to be greater than 0.1mm;
  5. When installing the static ring gland, tighten the screws must be evenly stressed to ensure that the end face of the static ring is perpendicular to the shaft;
  6. ??After installation, push the moving ring by hand, which can make the moving ring move flexibly on the shaft, and has certain flexibility;
  7. Rotate the shaft by hand after installation, and the shaft should not feel light or heavy;
   8. The equipment must be filled with medium before operation to prevent dry friction and seal failure;
   9. For crystalline and granular media, when the temperature of the media is greater than 80°C, corresponding washing, filtering, and cooling measures should be taken. For various auxiliary devices, please refer to the relevant standards of mechanical seals.
   In short, in the installation of the mechanical seal, strictly abide by the above points of attention, which can effectively avoid the occurrence of equipment failure and effectively improve the efficiency of the equipment.
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