First clear role slurry pump seal, slurry mechanical seal is used to prevent the body of slurry pump between the shaft and the leak must be sealed components.

As for the choice of which slurry pump seal, according to the different conditions of the user. Because the seal in the form of three slurry pumps have their own advantages and disadvantages.

First, packing, packing is the most common kind of seal, seal water by injection in the form of continuous injection of water under pressure in the packed inside, to prevent the leakage of slurry pumps : not suitable for use to pay for the impeller shaft Tandem pump seal, with packing seal. Simple packing seal structure, easy maintenance, low price.

Followed expeller seal, expeller seal through a reverse centrifugal impeller force to prevent slurry leakage. The first stage slurry pumps import when positive pressure is not greater than the slurry pump outlet pressure value of 10% of the single-stage or multi-stage pump series pump shaft seal can adopt expeller, expeller seal has a seal without water do not dilute slurry, good sealing effect and so on. Therefore, in the case of the slurry does not allow dilution, consider expeller seal.

Once again, mechanical seals generally require a relatively high sealing case. In particular, some chemicals, the food industry, not only requires sealing, and most are not allowed to add extra ingredients into the slurry pumps . Mechanical seals disadvantage is the high cost, maintenance difficulties.

In short, slurry seal specific choice of which requires specific customer mining conditions. These three forms slurry pump seal itself no good or bad, you need to look at the customer's specific situation.