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Mechanical seals for agitators generally have the following typical structures: 1. Non-cartridge single-end face type; 2. Single-end face cartridge type; 3. Single cartridge with bearing type; 4. Double cartridge type; 5. Double cartridge with bearing type; 6. Radial double end ty pe; 7. Bottom entry & side entry cartridge types types; 8. Belt Short axis integrated cartridge type. So what are the precautions for their installations respectively?
Precautions for installation of mechanical seal for kettle (I)
1.After the vertical container is installed, first calibrate the level of the container mouth and make sure that the foundation is stable;
2. Check the radial runout of the stirring shaft in the sealing part before installing the mechanical seal: the steel reactor is less than "d/100mm; the radial runout of the glass-lined reactor is less than "d/30mm; the axial runout of the stirring shaft is less than 0.5mm;
3. The tolerance of the stirring shaft is h8 (h9 for glass-lined stirring), and the surface roughness is ≤1.6μm (subject to the latest standard)
4. The transition chamfer of the stirring shaft end must be checked before the mechanical seal is installed on the agitator body: generally 3×20° and a smooth transition should be made.
1.After the vertical container is installed, first calibrate the level of the container mouth and make sure that the foundation is stable;
2. Check the radial runout of the stirring shaft in the sealing part before installing the mechanical seal: the steel reactor is less than "d/100mm; the radial runout of the glass-lined reactor is less than "d/30mm; the axial runout of the stirring shaft is less than 0.5mm;
3. The tolerance of the stirring shaft is h8 (h9 for glass-lined stirring), and the surface roughness is ≤1.6μm (subject to the latest standard)
4. The transition chamfer of the stirring shaft end must be checked before the mechanical seal is installed on the agitator body: generally 3×20° and a smooth transition should be made.
（To be continued）
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