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Causes of severe leakage at the packing of slurry pump
Published:
Jan 10,2025
The packing seal of the slurry pump is one of the important components of the slurry pump. Severe leakage at the packing area is one of the common failures during the use of the slurry pump. This article lists the possible causes of severe leakage at the packing area of the slurry pump, as well as preventive and corrective measures.
The main reasons for severe leakage at the packing of the slurry pump include the following:
1. Severe wear of the packing: Wear of the packing can lead to a decrease in sealing effectiveness, resulting in leakage. The solution is to replace the packing with new one.
2. Severe wear of the shaft sleeve: Wear of the shaft sleeve can cause poor sealing at the packing, leading to leakage. The solution is to replace the shaft sleeve with a new one.
3. Unclean or insufficient sealing water: Unclean or insufficient sealing water can prevent the packing from sealing effectively. The solution is to replace it with clean sealing water and increase the water pressure.
4. Improper selection of packing: If the selected packing is not resistant to medium corrosion, high pressure, vacuum, high temperature, or low temperature, it can lead to packing failure and leakage.
5. Packing gland not tightened: The packing requires a certain amount of tightening force to produce radial deformation and achieve sealing. If the tightening force is insufficient, the packing cannot seal effectively.
6. Packing too fine or too hard: Packing that is too fine or too hard can affect its sealing effectiveness. The solution is to choose suitable packing.
Preventive and corrective measures:
1. Regularly check and replace worn packing and shaft sleeves to ensure they are in good condition.
2. Maintain the cleanliness and sufficient pressure of the sealing water to ensure the sealing effectiveness of the packing.
3. Correctly install and adjust the packing gland to ensure appropriate tightening force.
4. Choose suitable packing to avoid using packing that is not resistant to medium corrosion or unsuitable for working conditions.
5. Regularly maintain and service the pump shaft and sealing water ring to prevent wear or damage.
Keyword:
Slurry pump
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