A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve, butterfly valves, flap valves, or any other form of shut-off valves) .

A diaphragm pump is a positive displacement pump that uses a combination ofreciprocating 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.

Diaphragm pumps feature a flat, diaphragm inside of a housing held together by screws. When pumping, the diaphragm flexes up and down to create pressure. These pumps tend to be more durable because there is no contact with the cylinder wall. Diaphragm pumps can reach up to 60 psi.

Sprayer Pump Types, Costs, and Specifications. … Sprayer pumps are most commonly used for pumping water and/or chemicals. Pump pricing is dependent on its intended use due to work needs and ranges from $80 up to $3,000. Guide Contents: Operation performance and application information for the differentsprayer pump types.