Technical essentials for mechanical seal installation and use-

Technical essentials for the installation and use of mechanical seals

　2017-01-04　　

Technical essentials for the installation and use of mechanical seals:

1) The radial runout of the shaft of the equipment should be ≤0.04mm, and the axial runout is not allowed to be greater than 0.1mm;

2) The sealing part of the equipment should be kept clean during installation, the sealing parts should be cleaned, and the sealing end face should be intact to prevent impurities and dust from being brought into the sealing part;

3). It is strictly forbidden to knock or knock during the installation process to avoid damage to the mechanical seal due to friction and seal failure;

4). A layer of clean mechanical oil should be painted on the surface in contact with the seal during installation, so that it can be installed smoothly

5) When installing the static ring gland, the tightening screws must be evenly stressed to ensure that the end face of the static ring is perpendicular to the axis line;

6). Push the moving ring by hand after installation, which can make the moving ring move flexibly on the shaft and have certain flexibility;

7). Rotate the shaft by hand after installation, and the shaft should have no light or heavy feeling;

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> 80oC, corresponding washing, filtering, and cooling measures should be taken. For various auxiliary devices, please refer to the relevant standards of mechanical seals.

10). When installing, apply a layer of clean mechanical oil on the surface in contact with the seal. Pay special attention to the choice of mechanical oil. For different auxiliary sealing materials, avoid causing O-rings to infiltrate and expand or accelerate aging Cause the seal to fail prematurely.　　224.html,

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