There are many reasons for water pump leakage, mainly mechanical seal leakage.
Causes and solutions for mechanical seal leakage are:
1. The pump was not filled with water during the trial run or the water was not used up during use.
Solution: Check the damage of the mechanical seal, replace the mechanical seal, and cultivate the correct operation method.
2. The mechanical seal is too tight or too loose.
Solution: Check the dynamic and static rings of the mechanical seal.
If there is no wear or scratches, you can reinstall and adjust. If the dynamic and static rings of the mechanical seal are worn or scratched, replace the new mechanical seal.
Check whether the sleeve length meets the requirements, and whether the seal of the mechanical seal wave tube or O-ring is too loose, too large, or not up to specification.
The bearing is damaged and the bearing is replaced. There are errors in the bearing gland, suspension, main shaft, etc., and replace the parts with poor size.
3. The liquid contains particles.
Solution: There are debris, welding slag or sediment in the pump cavity and the seal cavity, which will cause damage to the mechanical seal and the mechanical seal must be replaced.
4. Incorrect selection (not selecting a mechanical seal suitable for the use conditions according to the use requirements, especially the environment of conveying corrosive liquids).
Solution: Reselect a mechanical seal suitable for the use conditions according to the temperature, composition, and corrosiveness of the liquid.
5. The quality of the mechanical seal itself.
If there are parts that need to be replaced, replace them immediately; if there are no parts that need to be replaced, replace the entire set.