... input power. 2.Efficiency is higher Unloading pump Unloading pump can transfer medium that is from low ... Such as:conveying sewage,waste oil,mud water,mining waste,waste fuel oil,lime white,washing liquid,emulsion ... to another side along the pump shell.The cam rotor,driven by gear,rotates synchronously and makes the ... diameter of particles can be up to about 40 mm.3,Because the surface of salient pole ...