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1. The non-cartridge single-end mechanical seal is installed step by step according to the steps in the instruction manual;
2. Do a static pressure test for the double mechanical seal first. The test pressure is the design pressure. The test medium is oil or water. After holding the pressure for 30 minutes, the average leakage is less than 5ml/h, and the mechanical seal can be installed;
3. Apply a small amount of grease on the outside of the shaft or sleeve where the mechanical seal is installed, install the mechanical seal on the stirring shaft, pull out the shaft by about 50mm, and wipe off the grease on the locking chuck;
4. Install the frame, coupling, motor reducer and other transmission components of the mechanical seals in order, and confirm that the matching and positioning meet the design standards;
5. Then lock the positioning screw connecting the lower part of the mechanical seal to the agitator mouth, (use a special tool if the gasket has a locking force standard to meet the requirements), fix the locking chuck on the upper part of the mechanical seal, and finally remove the positioning card on the upper part of the mechanical seal;
6. For mechanical seals without auxiliary devices, open the sealing liquid port and fill it up with sealing liquid, then plug it up. (Clean glycerin, engine oil, pure water, etc. are generally used for the sealing liquid.) If the sealing liquid uses medium, it should be clearly specified when ordering. It can only be used when the influence of the medium has to be considered .
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