subject: Pressure Sand Filter [print this page] Pressure Sand Filters offered by us is used for water purification processes for different types of water like river water, lake water, bore well water filtration and others. For delivering optimum performance, these pressure sand filters consist of a pressure vessel that can be either vertical/ horizontal-fitted with a set of:
- Frontal pipe work and valves
- Graded silica quartz sand that is supported by layers of graded under bed consisting of pebbles & gravels
- Distributor to distribute incoming water uniformly throughout the cross section of filter
- Air scouring available for high flow pressure vessel
- Automatic Valves are provided as per customer's need
- Manual, Semi Automatic & Automatic features are provided
Main Markets/Key Customers:
- India
- UAE
- Oil & Refineries
- Textile Plant
- Power Plant
- Pharmaceutical Industry
- Automobile Plant
- Paper Mills
pressures and filter consists of a pressure vessel-this could be either vertical or horizontal-fitted with a set of frontal pipe work and valves, graded silica quartz sand supported by layers of graded under bed consisting of pebbles and gravels, a top distributor to distribute the incoming water uniformly throughout the cross section of the filter, and an under drain system to collect filtered water.
The filter is now taken out of service and cleaning of the filter is effected by flow reversal. To assist in cleaning the bed, the backwash operation is often preceded by air agitation through the under drain system. The process of air scouring agitates the sand with a scrubbing action, which loosens the intercepted particles. The filter is now ready to be put back into service.
