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Virtually pulse-less flow

16 May 2016

The special multi-diaphragm arrangement of Hydra-Cell metering and dosing pumps from Wanner is claimed to remove the need for pulsation dampeners in many circumstances.


Hydra-Cell pumps have multiple, hydraulically balanced diaphragms in a single head, that operate sequentially, dramatically reducing system pulsation and the damage it causes. The cost of additional pulsation dampeners, along with ongoing costs of charging and maintenance is avoided in many instances and Wanner says systems become more reliable.

Pulsation is usually observed as noisy vibration in system components or rapid gauge fluctuation. This can be a major problem, potentially causing component failure through fatigue or simply leakage in discharge pipe work due to pipe strain.

The Hydra-Cell pump range can accommodate measured flow requirements from 1 to 6360L/h at pressures to 172 bar with virtually no pulsation. The seal-less pumps exceed API 675 performance requirements in terms of repeatability, linearity and steady state accuracy and can pump abrasives and liquids that contain solid particles. They can also pump hazardous liquids safely and run dry indefinitely without suffering damage.

 
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