Brand: Mets
Min. Order: 1
Impeller are generally closed because of higher efficiencies and are less prone to wear in the front liner region. Semi-open impellers are more common in smaller pumps, where particle blockage may be a problem, or where the shear provided by an open impeller is an aid to pumping froth.
Another feature of slurry pump impellers is the pump out or expelling vanes on the back and front shrouds. These perform the dual function of reducing pressure (thus inhibiting recirculating flow back to the impeller eye and reducing stuffing box pressure) and keeping solids out of the gaps between the casing and impeller by centrifugal action.


Volute liner
Liner-easily replaceable liners are bolted, not glued, to the casting for positive attachment and east of maintenance. Hard metal liners are completely interchangeable with pressure molded elastomer. Elastomer seal rings back all liner joints.
The material selection for the pump liners and impellers is made from two basic types of materials:
*elastomers, including natural rubber, poly urethane, synthetic elastomers.
*wear / erosion resistant cat alloys.
Wear resistant cat alloys are used for slurry pump liners and impellers where conditions are not suited to rubber, such as with coarse or sharp edged particles, or on duties have high impeller peripheral velocities or high operation temperatures.