D Series Horizontal Multistage Centrifugal Pumps D, DF, DY series of sub-horizontal single-suction multi-stage centrifugal pumps, using the state recommended ... the name, concentration, specific gravity, temperature and pump inlet pressure pump such as a reasonable choice of material, sealed ... motor and so on. 3, DY Model: DY series of pump used for delivery does not contain solid particles, the ...