A positive displacement pump makes a fluid move by trapping a fixed amount and displacing that trapped volume into the discharge pipe. Some positive displacement pumps use an expanding cavity on the suction side and a decreasing cavity on the discharge side.
The benefit of a positive displacement pump is that the volume of liquid is constant for each operational cycle.
There are many benefits of positive displacement pumps for varying applications.
Positive displacement pumps have a wide variety of applications within industrial processing markets such as:
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