Welcome to "PBS"  

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 upto 100m3/hr have been successfully obtained for treating water containing 25-50 ppm suspended solids respectively to produce a filtrate with less than 5ppm.


Higher specific velocity.
Raw water can be used for backwashing the filter.

Higher specific flow rate than conventional downflow filters thereby saving on  space & cost.
Very little maintenance required.
Lower backwash water requirement.
In most cases, raw water can be used for backwash.

The Multigrade sand filters filter is an ideal choice for all applications where a conventional   sand filter is used.
It is extensively used in sidestream 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.

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 pipework & 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.

Our range of MS/MSRL/NG series of manual activated carbon filters are manufacture using granular activated carbon as media, making them ideally suited for dechlorination of water with free chlorine content & for the effective removal of organic matter. We use superior grade of fibre reinforced plastic (FRP) and allied materials that helps in making our products more durable.


Light weight equipment.
Easy to install - does not require concrete foundation
(NG Series)
The NG series of activated carbon filters are aesthetic, light weight and easy to install.

Light weight equipment, which is easy to install.
Do not require concrete foundations.
Single lever operated multi-port valve makes it more user friendly and easy to operate.
Plastic pressure vessel and piping do not require maintenance & are corrosion resistant.

For dechlorination of water for industrial/drinking water applications.
Removal of organic matter from water.
Filters are available in MS,MSRL,FRP,operating in Manual/Auto mode.
Also Available with 7.5 minutes and 15 minutes contact time.

FRP pressure vessel, fitted with plastic internal fittings.
Set of plastic frontal piping, linking multi-port valve/plastic ball valves to FRP vessel.
Complete charge of suitable filter media with supporting under bed media.
One pressure vessel.



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