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Wedge Wire Type Self-Cleaning Filters
Wedge Wire Type Self-Cleaning Filters
This is a pressure filter. Coolant from semi clean coolant pump is passed to self-cleaning filter. This filter operates on differential pressure created across the filter. Filter media is cleaned automatically when differential pressure reaches 1 bar. Wedge wire screen having the slit size of 200 microns is used in this filter to give effective filtration of 50 to 70 microns when differential pressure reaches to 1 bar. Flow direction is from in to out through filter media. All the sludge is collected on inner surface of the wedge wire screen. There is motorized scraping system mounted on the center shaft to wipe out sludge from inner surface. Further cleaning takes place with pressurized incoming coolant when drain line of the filter is opened up to atmospheric pressure with help of the pneumatically operated drain valve. Operations of this valve have been synchronized with the drive motor. Drained coolant along with sludge is further passed through the cartridge filters to trap sludge & collect coola
