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Edward Lowton
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Metering pumps with virtually pulseless flow
15 March 2018
Wanner's Hydra-Cell metering and dosing pumps are said to avoid the pulsation problems some pumps experience. The cost of additional pulsation dampeners and their on-going maintenance is also avoided in most instances, and Wanner says systems become more reliable.
The company says that having multiple diaphragms in a single pump head, operating sequentially and each pumping a relatively small volume of liquid at a greater frequency, virtually eliminates pulsation.
The Hydra-Cell metering and dosing pump range can accommodate measured flow requirements from 0.23 to 6360L/h at pressures to 245 bar. The pumps exceed API 675 performance requirements in terms of repeatability, linearity and steady state accuracy, and are able to pump abrasives and liquids that contain solid particles reliably due to special check valves, and they can even run dry indefinitely without suffering damage.
