D,DG Series pump is horizontal single suction multistage sectional centrifugal pump with high efficiency, wide performance, steady and safety operation, low noise,long operation,easy installation.
It can deliver the medium with solid particles(the diameter of the solid particles should less than quarter of the impeller channel), besides, it can be changed the pump materials(or flow channel materials), seal way, add cooling system then can deliver the hot water, oils, corrosive liquid, and abrasive medium.
D,DG Series horiozntal multistage centrifugal pump adopt the symmetrical setting impeller. It can eliminate the axial force, the remain axial force can born by a pair of back to back angular contact ball bearing. As there is no balance device, that is no friction loss and return loss in the balance disc. So the pump efficiency is greatly higher 5-14% than common multistage pump.
Adopt mechanical seal with high quality. 
The bearing seat can not allow the water in.