SB type Pumping Drilling Fluid Pump The Depon® SB series centrifugal sand pump are mainly used to support the solids control circulationg system of oilfield drill rig. MSB sand pump can provide drilling liquid with pressure to desander, desilter and mud mixer, aimed at making them work efficiently. Explosion drawing Feature Open impeller, apply to transport high viscosity driling liquid Combination seal for a long service life Use universal bearing housed and bearings, convenient to maintain and cut costs The major parts are made from anti wear ductile iron, and long service life