When three pumps are better than one
Published: 11 February, 2015
Engineers at WANNER report they have designed a high flow rate skid that incorporates three of the company’s Hydra-Cell G35 pumps operating in parallel.
The system can pump up to 420 litres per minute at 83 bar pressure or up to 200 litres per minute at 100 bar pressure. Wanner says installing three Hydra-Cell pumps means three times the flow as they are true positive displacement pumps. This is not the case in a centrifugal pump system. With Hydra-Cell pumps the flow is maintained but the friction losses manifest themselves in increased system pressure.
The multiple pump system where all three pumps take suction from a common manifold and discharge into a common header is reported to be ideal in situations where some flow needs to be maintained continuously and system shutdown is not an option.
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e: NHerrington@wannerint.com
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Following extensive on-site testing, it is reported that HYDRA-CELL G04 pumps have now been uprated to 200 Bar when operated at a reduced speed and with a commensurate reduction on flow rate.
The unique 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 from Wanner have multiple, hydraulically balanced diaphragms in a single head, that operate sequentially, dramatically reducing system pulsation and the damage it causes.
