Function and replacement cycle of slurry pump sealing ring

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• TIME : 2025-06-27

The role of the sealing ring in the slurry pump

The sealing ring of the slurry pump is an important component of the slurry pump, and its main function is to prevent the slurry conveyed in the pump body from leaking between the shaft and the pump body. The sealing ring forms a rotating sealing surface by tightly fitting with the shaft and pump body, thereby achieving effective sealing effect. Specifically, the function of the slurry pump sealing ring includes:

Sealing performance: The leakage rate of the slurry pump seal is generally between 0.01-5ml/h, and with special design, the leakage rate can be reduced to ensure that the slurry inside the pump body does not leak to the outside.

Service life: The typical service life is over 8000 hours, and it can maintain good sealing effect during long-term operation.

Low friction power: The friction power is only 20% -30% of the packing seal, reducing energy loss.

Reduce wear and tear: Due to its special structure, the pump can still maintain good performance within a certain range of vibration, extending the life of the shaft and sleeve.

Easy maintenance: The slurry pump does not require frequent adjustments during operation, and the daily maintenance workload is small.

Replacement cycle of slurry pump sealing ring

The replacement cycle of the sealing ring of the slurry pump depends on various factors, including the working conditions of the pump, the properties of the medium, the operating environment, and the maintenance situation. Generally speaking, when the sealing ring encounters the following situations, replacement may need to be considered:

Severe wear and tear: Due to long-term operation, the sealing ring may experience wear and tear, leading to a decrease in sealing performance.

Damage: If the sealing ring is physically damaged, such as cracks, fractures, etc., it needs to be replaced immediately.

Leakage increase: When the leakage of the pump is significantly increased beyond the normal range, it may be a signal of seal ring failure.

Abnormal operation: such as increased vibration and noise of the pump, which may also be related to the sealing ring, needs to be checked and may be replaced.

There is no unified standard for the specific replacement cycle, and it is usually recommended to conduct regular inspections and maintenance based on the actual operating conditions of the pump and the manufacturer's recommendations. Under certain harsh working conditions, it may be necessary to inspect and replace the sealing ring more frequently to ensure the normal operation and safety of the pump.

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(Editor in charge: Slurry Pump https://www.fuyangpumps.com/)

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