www.saVRee.com Diaphragm Pump Explained| pg. 1
What is a diaphragm pump?
A diaphragm pump is a type of positive displacement pump that uses a flexible
membrane (diaphragm) as its primary pumping element to move and pressurise a fluid.
Diaphragm pumps are used for low pressure, low flow, applications, and can be used
to pump many types of gases, liquids, and slurries.
Diaphragm Pump
Good to know – the diaphragm pump gets its name from the diaphragm that it uses to pump
fluid. Pumps are often named after the part of the pump that causes the pumping action e.g.
gear pump, piston pump etc.; the same is true for valves, which are usually named after the
disc that is used to open and close the valve e.g. ball valve, gate valve, etc.
What are the main parts of a diaphragm pump?
A diaphragm pump is composed of relatively few main parts, these are:
Non-return valves (suction and discharge)
Pumping chamber
Diaphragm
Suction manifold
Discharge manifold