Pumps are required throughout all stages in the pulp & paper industry, to make raw material into pulp, and convert pulp into paper or card. First the fibers are pumped to central stock preparation area after mechanical and chemical treatment, the adhesive and colorants are also handled by single-screw pumps. Second to increase the surface strength of paper, a glue or starch solution is often added in press & dryer section by pumps, finally paper surface is coated with pigments or chemical as per requirement, PD pump is used in the production of the coating colour and feeding the coater in the coating area.