Seawater filter automatic backflushing filter: High flow continuous automatic operation during backflush wedge wire multi-element filtration from 25 microns
The seawater filter is a backflushing filter for the removal of solid contaminants from water and emulsions. Filtered residues are automatically discharged without interrupting the filtration process. The robust design of this filter ensures high functional reliability and minimum running costs.
This automatic back flushable water filter is suitable for all types of water particle filtration as the main full flow filter or as a by-pass filter. It is particularly suitable for the filtration of seawater for cooling engines, generators, heat exchanger and other special equipment that needs protection. Process and wastewater from petrochemical and chemical plants can also be treated.
This system may also treat process water for the oil and gas industry, onshore or offshore for water inspection, seawater, produced oily water, HVAC cooling water and firewater where precise filtration is necessary.
The fluid to be filtered passes through the inlet into the bottom housing section. Half of the fluid enters the lower end of the filter elements. The other half of the fluid passes through the central riser, and enters the top end of the filter elements.
Dirt particles are captured over the entire length of the filter elements from the inside to out. Backflushing is activated as a function of the differential pressure or a pre-set time, depending on the degree of contamination of the elements.
After one revolution of the flushing device the electronic control, switches the gear-motor off when the filter is clean. With centrifugal pumps or buffered systems, there is little change in the flow rate at the filter outlet during the flushing period. The regulating valve in the backflush line allows the backflushing volume to be optimized, depending on the available pressure and type of contamination.
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