F.E.I.T. PVM electric diaphragm pumps have special advantages of pumping liquids containing particles of solid matter in suspension including sand, mud stones, saw dust, seeds, sludge, hairs and cotton are just a few examples. Can run dry and prime from dry. As this pump is of the volumetric type, the outlet pipe must not be reduced in size, in addition taps, valves that regulate the flow must not be used on the delivery or suction hose. Supplied as standard with nitrile rubber diaphragm and check valves, upon request they can be supplied as vition. 1.5" inlet and 1.5" hose outlet