The Positive Displacement Pumps has a special pumping principle used utilizes an extremely accuracy manufactured Metallic Single helical rotor transforming inside a double internal helical resilient stator. Consequently forming cavities confined by a “Sealing Line” which is preserved at standstill as well as during turning. While the blades revolves in the stator, the cavity created between them advances from suction to delivery side, gently carrying the tool.

ISPI pumps are created for transferring viscous liquids with high strong web content. Typically, the sludge transfer pump style is a favourable variation pump to allow the handling of heavy, viscous, as well as rough fluids.