Skip to main contentA diaphragm pump is a positive displacement pump that uses a combination of reciprocating action and either a flapper valve or a ball valve to transfer liquids. This pump is sometimes referred to as a membrane pump. Diaphragm pumps are self-priming and are ideal for viscous liquids.
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NEW Nilfisk Hot Pressure WashersPressure WashersMachine Parts by BrandPumps & SparesPopular High Pressure HosesHose ReelsNozzlesPressure Washer TriggersUnloader ValvesInterpump Service KitsFlojet, Everflo, Shurflo Diaphragm Pumps and Spares
Flojet, Everflo and Shurflo diaphragm pumps and spares for water, chemical and beverage systems. The range includes Flojet Triplex, Versijet, Duplex II, 4000 Series and Par-Max pumps in 12V, 24V and 230V, Flojet G70 air driven pumps, and spares such as pressure switches, diaphragm kits, check valve kits and quick connect port adaptors. Match a replacement pump by voltage, flow and pressure.