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Filter withstands corrosive sea and estuary water

Published: 11 January 2012 - Heather Ramsden

Cross Manufacturing has introduced a filter designed for the corrosive environment of sea water and estuary water systems.

Cross claims to have developed long lasting, money saving, reliable automatic filtration equipment that can be installed in modules to meet even the largest flow. It says desalination plants, coastal power stations and cooling tower circuits could see huge savings in short timescales.

The technology is based on a patented stainless steel ‘zero gravity’ filter coil which is already in use in many areas of industry including water and wastewater treatment and heating and air conditioning plant rooms. A set of filter coils is fitted into a pod and each pod can be backwashed individually and automatically at a selectable differential pressure value. The filtration process is not interrupted which ensures minimal effect on flow and the need for any redundant filtration capacity is eliminated. Automation is PLC controlled and actuation is pneumatic in larger systems.

Cross’s research identified that a filter of alloy 625 combined with a large polypropylene housing, polyethylene pipework and bronze backwashing valves is ideal for large scale sea water and estuary filtration systems.



 
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