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The Multigrade Sand Filter is a depth filter that makes use of coarse and fine media mixed together in a fixed proportion. This arrangement produces a filter bed with adequate pore dimensions for retaining both large and small suspended particles. This filter performs at a substantially higher specific flow rate than conventional filters. Specific flow rates of 15-30m/h have been successfully obtained for treating water containing 50-25ppm suspended solids respectively to produce a filtrate with less than 5ppm. |
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| Sand Filter | |||
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| Features : | |||
• Higher specific velocity. • Raw water can be used for backwashing the filter. |
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| Advantages : | |||
• Higher specific flow rate than conventional down flow filters thereby saving on Space & cost. • Very little maintenance required. • Lower backwash water requirement. • In most cases, raw water can be used for backwash. |
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| Applications : | |||
• The Multigrade sand filters filter is an ideal choice for all applications where a conventional sand filter is used. • It is extensively used in side stream filtration of cooling water & in potable water treatment. • It is ideal for filtration of clarified water. • In addition it finds application in sea water filtration & in filtration of chemical solutions. • For these types of filtrations rubber lined or epoxy painted filters can be offered. |
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| Specifications : | |||
• One vertical cylindrical Mild steel/FRP pressure vessels with dished ends. Mild Steel pressure vessel are painted internally with anticorrosive bitumastic paint and externally with a protective coat of red oxide primer. • One set of internal water distribution & collection system. • One initial charge of filter sand & underbed material • One set of frontal pipe work & valves. • Two pressure gauges to monitor head loss across the filter. • One orifice board (optional) for indicating wash water flow to be fitted in drain sump. Maximum / minimum operating pressure will be 3.5kg/cm2g & 2.0 kg/cm2g respectively. • Multigrade sand filters are available from 600 to 3000mn diameters.
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Address : 9/10, Dattani, 5-A,
Near Santoshi
Mata Temple, Shivaji Road, Kandivali (West), Mumbai - 400067, Maharashtra, India. Tel. No : (022) 28642832 E-Mail : response@watertreatmentplant.co.in / pbs999@rediffmail.com |
