G12147A05A Impeller is a main rotating component installed on 14x12G-AH Slurry Pump.

Tobee G12147A05A Impeller is a main rotating component installed on 14x12G-AH Slurry Pump.

Tobee® offers three different types of slurry pump impellers: open, closed, and semi-closed. And the number of impeller vanes usually varies between three and six depending on the size of the particles in the slurry.

Slurry impellers are more commonly of the closed type (with a front shroud) but open type impellers (without a front shroud) are sometimes used for special applications.

Impellers are generally closed because of higher efficiencies and are less prone to wear in the front liner region. Open impellers are more common in smaller pumps or 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 black to the impeller eye, and reducing stuffing box pressure) and keeping solids out of the gaps between the casing and impeller by centrifugal action.