1. HLG/HLW series of centrifugal pumps according to hydraulic principle of the pump design, noise, running quiet. 2. Pump body and flange, the material of the slag basket is filled with GF/PP, and the material of the impeller is filled polystyrene. 3. Axial inlet and radial outlet, compact structure. 4. Transparent filter basket, easy to determine whether the need for cleaning, large capacity. 5. Motor have two models: inner cooling steel plate motor and outer cooling aluminum alloy motor.