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Sand Filter Technology

Pressure sand filters provide proven, efficient removal of suspended solids, turbidity, and organic matter from water and wastewater streams. Our vertical and horizontal vessels are engineered for filtration rates of 5–15 m/h, with dual-media (anthracite + sand) and multimedia configurations available for enhanced performance.

Automatic backwash systems using air scour and reverse flow clean the media bed without manual intervention. Pressure differential switches trigger backwash cycles based on actual headloss, conserving water and extending filter runs. Options include internal epoxy coating, stainless steel internals, and pre-fabricated skid mounting.

Specifications & Operating Parameters

Flow Range

5 – 500 m³/hr per vessel

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Vessel Diameter

300 – 3,600 mm

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Operating Pressure

Up to 10 bar

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Media Depth

600 – 1,500 mm

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Filtration Rate

5 – 15 m/hr (gravity), 10 – 30 m/hr (pressure)

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Backwash Flow

25 – 40 m/hr for 10 – 15 minutes

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Materials

Carbon steel (rubber-lined), SS304, SS316, FRP

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Valve Configuration

Manual, semi-auto, or fully automatic

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Where This Equipment Is Used

Proven across a wide range of industrial water and wastewater treatment processes.

Suspended Solids

Removing particulate matter from water and wastewater streams.

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Polishing

Final treatment stage to achieve very low residual contaminant levels.

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Pretreatment

Initial conditioning of raw water to protect sensitive downstream equipment.

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Cooling Water

Treating recirculating cooling water to prevent corrosion and biofouling.

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Irrigation

Treating water for agricultural irrigation and landscape watering.

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Process Water

Supplying treated water for industrial manufacturing processes.

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Related Processes

This equipment is commonly integrated into the following treatment processes.

Filtration Systems

Complete filtration train design and supply.

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Desalination Plants

RO pretreatment and media filtration.

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Cooling Water Treatment

Side-stream and full-flow filtration.

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Process Water

Industrial process water polishing.

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Related Equipment

Explore complementary equipment within our product range.

Multimedia Filter

Advanced multi-layer media filtration.

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Activated Carbon Filter

Organics, chlorine, and odour removal.

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Self-Cleaning Filter

Automatic screen filtration for continuous duty.

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Backwash Pump

Centrifugal pumps for filter backwash.

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Multimedia Filter — Technical Library

For the depth-filtration step in this process we use multimedia filters with graded anthracite/sand/garnet beds. The technical detail behind sizing, media specification, backwash hydraulics and field troubleshooting lives in a dedicated library — pick the topic:

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.