Differences between gear pumps and diaphragm pumps
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I would like to ask the experts: What is the difference between gear pumps and diaphragm pumps?
Both gear pumps and diaphragm pumps belong to positive displacement pumps; gear pumps are rotary positive displacement pumps, while diaphragm pumps are reciprocating positive displacement pumps. They all feature high head and low flow rates
Diaphragm pump: high noise level, but strong resistance to contamination； Gear pump: small in size, with low pulsation and low noise
Diaphragm pumps have a wide range of applications, while gear pumps are generally used for transporting various types of oils.
The operating principles of the two are completely different; there is a huge difference between them. Although both are positive displacement pumps, diaphragm pumps operate in a reciprocating manner, while screw pumps operate in a rotational manner.