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Sand filter – Filtering system

SAND FILTER

Quartz sand filter removes impurities from raw water to achieve water reuse. Filter is automatic operation and back-flushing, under control system of dp-switch (pressure drop), butterfly and PLC control system.

SAND FILTER PICTURES

HOW DOES THE SAND FILTER WORKS

Raw water passes inside water distributor into filter media layer (quartz sand), which let impurities stay at sand layer. Clean water flow out stably from water collector. When the pressure drop reaches the given value, the cleaning cycle is started. The rinse control start working at pressure drop value at 0.05-0.15MPa, return to 0.02-0.04MPa after back flushing.
Quartz sand inside tank mixed with coarse and fine sands. They are allocated above water distributor averagely. Even in back flushing, water consumption is little. Tank inside has rubber line and plastic line for option. It is for anti-corrosion, which ensure a tank can be used 10-20years. The completed filter control system has finished already in factory.

SAND FILTER TECHNICAL PARAMETER

Single Flow Rate6-300m3/H 
Design Pressure7.5-16 bar 
Water inlet pressure2.5-3 bar 
The Range of Working Temperature20-120.C (68-248.F)
Seal TypeO-ring and Washer 
Connect MethodFlange 
Surface TreatmentMatt Spray Beads, Mirror Polishing, Electropolishing 
Control MethodDifferential pressure switch, Time control and manual control
Filter sand typeQuartz sand, activated carbon, Anthracite, fiber ball, resin 
Filter medium supplyWe can supply different kind filter medium and combination
Equipment Chamber MaterialCarbon steel 304ss or 316L
The key of filter effectwater distribution and catchment technology

WHERE TO USE SAND FILTER

Swimming pool, hotel spa, water entertainment, aquarium, fish farm
Irrigation in agriculture
Drinking water pre-treatment
Industrial recycled water, central air-condition system