Shallow Sand Filter

1. Filtration Grade: 20-50 micron standard (10 micron upgrade available)

2. Flow Capacity: 50-300 m³/h per unit (scalable systems)

3. Operating Pressure: 2-6 bar

4. Pressure Drop: 0.2-0.5 bar

5. Backwash Frequency: 24-72 hour intervals (condition-based)

6. Backwash Duration: 5-8 minutes

7. Backwash Water Consumption: 1-3% of total flow

System Components

1. Vessel Construction:

FRP (Fiber Reinforced Plastic): 6-12mm wall thickness

Stainless Steel: 304/316L, 3-6mm thickness

Carbon Steel: 4-8mm with epoxy coating

2. Filtration Media:

Silica Sand: 0.4-1.2mm effective size

Support Gravel: 2-32mm layered bedding

Alternative Media: Anthracite, garnet, activated carbon

3. Distribution System:

Lateral pipe design

Nozzle spacing: 100-150mm

Flow velocity: 0.3-0.5 m/s

1. Higher Filtration Velocity: 15-20 m/h vs. 8-12 m/h in conventional systems

2. Smaller Footprint: 40-60% space savings

3. Reduced Media Volume: 30-50% less media required

4. Lower Headloss: 0.3 bar vs. 0.6-1.0 bar typical

Industrial Applications

1. Process Water Treatment:

Cooling tower make-up

Boiler feed water

Process rinse water

2. Wastewater Recycling:

Tertiary treatment

Membrane pretreatment

Water reuse systems

3. Specialized Applications:

Food & beverage production

Pharmaceutical water

Microelectronics

1. Optimized Flow Distribution: Patented inlet diffuser design

2. Efficient Backwashing: Air scour option available

3. Corrosion Protection: FRP or epoxy-coated internals

4. Modular Construction: Easy field assembly

Quality Assurance

1. ISO 9001:2015 certified manufacturing

2. ASME Section VIII Division 1 design

3. CE/PED compliant

4. Factory acceptance testing

Maintenance Requirements

1. Annual media inspection

2. Biannual valve maintenance

3. 5-year vessel inspection

4. 10-year structural integrity check

1. Foundation requirements: 150mm concrete pad

2. Piping connections: Flanged 80-300mm

3. Electrical requirements: 220-440V, 50/60Hz

4. Space requirements: 1m clearance for maintenance

Operational Data

1. Typical service life: 15-20 years

2. Media replacement: 5-7 year intervals

3. Energy consumption: 0.5-1.5 kWh/m³

4. Operational availability: >98%

1. Case Studies

Chemical Plant Expansion:

Installed 6 units @ 200 m³/h each

Achieved 5 micron filtration

Reduced water consumption by 18%

Municipal Water Treatment:

12-unit installation

50,000 m³/day capacity

30% lower operating costs

2. Technical Support

Process engineering services

CFD modeling available

Installation supervision

Operator training programs

3. Ordering Information

Standard lead time: 8-12 weeks

Expedited delivery: 4-6 weeks (additional cost)

Shipping: Containerized or bulk

Conclusion

Our shallow sand filtration systems provide an optimal balance of performance, efficiency, and cost-effectiveness for industrial water treatment applications. With 16 years of continuous improvement, we deliver reliable solutions that meet the most demanding operational requirements.