CPM centrifugal water pump:cast iron body,cast alu shell,brass/alu/ plastic impeller,B class insulation,IP44. centrifugal water pump(CPM130) consists of pumps with a single centrifugal impeller. These pumps have an essential form and are the result of precise design choices, made to obtain specific performance characteristic. the impeller, mounted on the end of the motor shaft. directly faces ...