Plant & Works Engineering
Multiple control options
Published:  23 March, 2016

wanner_international.jpgWANNER INTERNATIONAL says its Hydra-Cell Metering and Dosing solutions range includes variants with integrated variable speed drives and says the innovative design combines an AC induction motor with a Variable Frequency Drive (VFD inverter) mounted on the motor.

Combining the motor and drive together is claimed to be simple to use while being highly accurate and repeatable.

Because Hydra-Cell pumps are true positive displacement pumps, flow rate is directly proportionate to input shaft speed and virtually independent of system discharge pressures.

Wanner says flow rate can therefore be varied proportionately by motor speed control offering turndown ratios of 10 to 1 or better and a variety of control methods is available.

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