The Speroni Submersible Borehole Pump Range Covers A Wide Range Of Pumping Duties For Agricultural And Domestic Applications. Floating Type Impellers Require Less Starting Torque And Are Less Affected By Sand Or Other Abrasive Materials. Pumps With Less Than 19 Impellers Are Fitted With One Shaft Bearing And Pumps With More Than 19 Impellers Are Fitted With Two Bearings. Application: Water Supply; Irrigation And Pressure Boosting. Materials: Shaft Hex 304 Stainless Steel; Shaft Coupling 304 Stainless Steel; Impeller Noryl; Strainer 304 Stainless Steel And Discharge Head 304 Stainless Steel. Discharge: 32mm.