Monolingual examples (not verified by PONS Editors)

English
There are different types of fillers used in the filling system like auger or agitator filling machines, flow filling machines, tablet filter, positive displacement pump filters, etc.
www.digitaljournal.com
Positive displacement pumps are the most effective for low vacuums.
en.wikipedia.org
This is the principle behind positive displacement pumps, like the manual water pump for example.
en.wikipedia.org
Values of specific speed less than 500 are associated with positive displacement pumps.
en.wikipedia.org
Dynamic compressors are most often matched with gas turbine drives due to their similar high-speed characteristics, whereas positive displacement pumps usually use one of the mechanical drives.
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Its purpose is to achieve higher vacuum (lower pressure) than is possible by use of positive displacement pumps alone.
en.wikipedia.org
Momentum transfer pumps, which bear some similarities to dynamic pumps used at higher pressures, can achieve much higher quality vacuums than positive displacement pumps.
en.wikipedia.org
A relief or safety valve on the discharge side of the positive displacement pump is therefore necessary.
en.wikipedia.org
Hydraulic gear pump is fixed displacement pump which has a set flow rate.
www.digitaljournal.com
Some positive displacement pumps use an expanding cavity on the suction side and a decreasing cavity on the discharge side.
en.wikipedia.org

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