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The MGF works on principle of retention and removal of physical impurity in agraded manner through Voids of the filtering media.
The physical impurities of raw water i.e. suspended solids, dirt, dust, allvisible particles are removed in Multi Grade Filter up to 50 micron.
Multi grade filter isa depth filter that makes use of coarse and fine media mixed together in afixed proportion. This arrangement produces a filter bed with adequate poredimensions for retaining both large and small suspended particles. This filterperforms at a substantially higher specific flow rate than conventional filters
Raw water passed through the Multi Grade Filter, it consists of multilayers offilter media consisting graded sand, white sand, fine sand, activated carbonand pebbles layers, which retain the suspended particles. During the filtrationcycle the filter bed retains the dirt and suspended particles from the waterand accumulates within the filter bed. As the filtration progress the filtermedia gets loaded with the retained particles, this results in a continuousincrease of pressure drop across the filter, when a predetermined pressure droplevel is achieved the filter is shutdown for cleaning.
The filter media is cleaned by backwash system. After back-washing the filteris rinsed with raw water and after the required quality of water is achievedthe filter is put back into service. Depending on the filtered water qualityrequired back-washing is either done with raw water or filtered water.
RANGE OF PRODUCT MODEL AVAILABILITY Multi grade Filter is comprises ofMild Steel /SS / FRP Pressure Vessel, Frontal piping wok with manual /Automatic multi port valve butterfly valve /conventional valves for easy operationand control. Available from 1,000 Liters/hr. to 1,00,0000 Liters/hr.