Pressure Sand filters

 

We produce wide range of standardized and custom built filtration system to remove suspended solids from water. Pressure sand filter are used as per treatment system in RO plant (ROP) and post treatment system in Waster water treatment plants (STP & ETP).

PRESSURE SAND FILTER PROCESS

Raw water is passed through the pressure sand filter, the filter media is supported on gravel bed that consists of multiple layers of Graded quartz sand, Fine sand, Super fine white sand and pebbles of progressively larger sizes. During the filtration cycle the filter bed retains the dirt and suspended particles from the water and accumulates within the filter the water and accumulates within the filter bed. As the filtration progress the filter media gets loaded with retained suspended particles, this results in a continuous increase of pressure drop across the filter, when a predetermined pressure drop level is achieved the filter is shut down for cleaning.




BACK WASH
As the filtration progress the filter media gets loaded with the retain the suspended particles, this results in a continuous increase of pressure drop across the filter, when a predetermined pressure drop level is achieved the filter is shut down for cleaning. The filter media is cleaned by backwash system. After backwashing the filter is rinsed with raw water and after the required quality of water is achieved the filter is put back into service. Depending on the filtered water quality required backwashing is either done with raw water or with filtered water.

PRODUCT MODEL AVAILABILITY
Our Pressure sand filter plants are comprises of Mild Steel /SS / FRP Pressure Vessel, Frontal piping wok with manual / Automatic multi port valve butterfly valve / conventional valves for easy operation and control. Available from 1,000 Liters/hr. to 1,00,0000 Liters/hr.