Slurry seal Slurry from physics principle, belongs to a centrifugal pump, conceptually refers to the centrifugal force by means of the solid, liquid mixed media kind of mechanical energy increases, the energy is converted into kinetic and potential media devices .
The name is a centrifugal slurry pump from the perspective of the transmission medium to the division. Slurry seal in the form of the three have their own advantages and disadvantages.
First packing is the most common kind of slurry seals, seal water is injected through the form, constantly inject water under pressure inside the packing, a slurry pump to prevent leakage: not suitable for use for the payment of the impeller shaft seal Tandem pump, using the packing seal. Simple packing seal structure, easy maintenance, low price.
Second, expeller seal, through a reverse impeller centrifugal force to prevent slurry leakage. The first stage pump in the pump inlet positive pressure pump outlet pressure is not greater than 10% of the value of a single-stage or multi-stage pump can be used to pay tandem pump impeller shaft seal, slurry pump manufacturer expeller seal has a seal without water, without diluting the slurry body, good sealing effect and so on. Therefore, in the case of slurry dilution is not allowed, consider such a seal. Again, mechanical seals, slurry seals in general is relatively high demand situations.
In particular, some chemicals, food areas, not only requires sealing, but most are not allowed to add extra ingredients into the pump. The disadvantage is the high cost and maintenance difficulties.
Post time: Jul-13-2021