How a Dosing Pump Works

A diaphragm or a plunger displaces a fixed chamber. Check valves let liquid in on the suction stroke and out on the discharge stroke. Stroke length or stroke rate sets the flow.

The drives on this site

A solenoid pump pulses an electromagnet. A motor pump uses a gearbox and a motor. A hydraulic diaphragm pump puts oil behind the diaphragm. The model page states which drive that card uses. We do not publish a stroke volume here.

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