Manual control dosing pumps
Published: 05 November, 2015
WANNER INTERNATIONAL reports it has introduced a range of Hydra-Cell, ATEX approved Dosing Performance Pumps with precise mechanical variator control, all mounted on a substantial stainless steel base plate.
The company says these seal-less pumps are designed for use in ATEX classified environments, coupled to compatible, explosion proof motors, completely removing the need for complex and costly external VFD ATEX control.
Because Hydra-Cell pumps are true positive displacement pumps, Wanner says flow rate is directly proportionate to input shaft speed and virtually independent of system discharge pressures. Very precise and repeatable, infinite adjustment of shaft speed is achieved from almost zero rpm, through a simple manual adjust hand wheel on the variator.
Flow rate is adjustable in operation and at rest and exhibits linear setting characteristics.
t: 01252 816847
e: NHerrington@wannerint.com
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WANNER 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.
WANNER says its new, seal-less, hydraulically balanced diaphragm pump offers flow rates up to 366 lpm at pressures up to 103 bar.
WANNER INTERNATIONAL says its exclusive new "Control Freak" electronic controller provides motor speed control for Hydra-Cell Metering Solutions pumps (or Hydra-Cell bare shaft pumps in metering applications) and is able to control multiple pumps with Variable Frequency Drives (VFDs) from a single point and because motor speed is directly proportionate to flow rate in a Hydra-Cell pump, high accuracy can be achieved through the use of VFDs.
WANNER says its Hydra-Cell seal-less pumps, have solved a pump seal wear problem for a major producer of acoustic panels. When pumping abrasive coatings, pumps with dynamic seals can eventually wear and leak, performance accuracy deteriorates and maintenance downtime for seal replacement can prove expensive as the Corporation found to its cost.
