Tag Archive: “positive displacement pump”

Mar
17

Flow Control – Positive Displacement Pump Part 2

When using a positive displacement pump in flow control, then the minimum flow which may be achieved using a variable speed drive is limited by the motor low speed limit. It is possible to achieve a wider range of flow control by regulating flow using a fixed speed motor and a throttling valve in combination …

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Mar
10

Flow Control – Positive Displacement Pump Part 1

Positive displacement pumps may be used when it is necessary address flow requirements of 2GPM or less. The pump design ( e.g. vane, gear, peristaltic) selected for a particular application should be based on properties of the liquid and the expected operating condition. One characteristic of a positive displacement pump is that when it is …

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