Horizontal sand filter are made of polyester reinforced with fiberglass; they are totally anti-corrosivem and have high mechanical , chemical and thermal resistance, higher quality water is achieved with their greater filtering capacity. Indexes of turbidity and contaiminants of the filtered water are reduced due to their increased retention capacity, the time between back washed increases proportionally with the height of the filter bed, meaning there are fewer intereeuptions in filtration, and lower water consumption, because the number of back washes needed is decreased and there is less erosion of the filtering material.
A horizontal filter is the ideal choice in cases where a great volume of water is to be treated, and in cases which require optimization of the available space, as a single horizontal filter can suitable up to 3 vertical filters of the same diameter simply by incresing its length.
￠1200mm
| Model | Length (mm) | Pipe Size (inches) | Filter Area (m2) | Design Flow (m3/h) | 0.4-0.8mm Sand Weight (kg) | 1-2mm Gravel Weight (kg) | Volume (L) | Total Weight (kg) | Standard Volume (m3) |
| WL-HF121900 | 1900 | 3 | 1.96 | 59 | 1100 | 425 | 1900 | 3220 | 3.10 |
| WL-HF122300 | 2300 | 3 | 2.42 | 72 | 1425 | 550 | 2350 | 3960 | 3.75 |
| WL-HF122500 | 2500 | 3 | 2.65 | 79 | 1750 | 700 | 2580 | 4320 | 4.10 |
| WL-HF122700 | 2700 | 4 | 2.87 | 86 | 2075 | 825 | 2800 | 4690 | 4.40 |
| WL-HF123000 | 3000 | 4 | 3.21 | 96 | 2325 | 925 | 3140 | 5240 | 4.90 |
￠1400mm
| Model | Length (mm) | Pipe Size (inches) | Filter Area (m2) | Design Flow (m3/h) | 0.4-0.8mm Sand Weight (kg) | 1-2mm Gravel Weight (kg) | Volume (L) | Total Weight (kg) | Standard Volume (m3) |
| WL-HF141900 | 1900 | 4 | 2.23 | 67 | 2100 | 575 | 2530 | 4250 | 4.85 |
| WL-HF142500 | 2500 | 4 | 2.42 | 91 | 2825 | 800 | 3460 | 5740 | 6.25 |
| WL-HF143000 | 3000 | 4 | 3.67 | 110 | 3450 | 1000 | 4230 | 6990 | 7.45 |
￠1600mm
| Model | Length (mm) | Pipe Size (inches) | Filter Area (m2) | Design Flow (m3/h) | 0.4-0.8mm Sand Weight (kg) | 1-2mm Gravel Weight (kg) | Volume (L) | Total Weight (kg) | Standard Volume (m3) |
| WL-HF161900 | 1900 | 4 | 2.47 | 74 | 2850 | 600 | 3220 | 5430 | 5.50 |
| WL-HF162500 | 2300 | 4 | 3.36 | 101 | 3875 | 850 | 4430 | 7400 | 7.20 |
| WL-HF163000 | 2500 | 6 | 4.10 | 123 | 4750 | 1050 | 5430 | 9020 | 8.65 |
￠1800mm
| Model | Length (mm) | Pipe Size (inches) | Filter Area (m2) | Design Flow (m3/h) | 0.4-0.8mm Sand Weight (kg) | 1-2mm Gravel Weight (kg) | Volume (L) | Total Weight (kg) | Standard Volume (m3) |
| WL-HF182500 | 2500 | 6 | 3.74 | 112 | 4850 | 975 | 5530 | 9170 | 10.45 |
| WL-HF183000 | 3000 | 6 | 4.58 | 137 | 5925 | 1225 | 6800 | 11230 | 12.30 |
| WL-HF183500 | 3500 | 6 | 5.41 | 162 | 7000 | 1475 | 8070 | 13290 | 14.25 |
￠2000mm
| Model | Length (mm) | Pipe Size (inches) | Filter Area (m2) | Design Flow (m3/h) | 0.4-0.8mm Sand Weight (kg) | 1-2mm Gravel Weight (kg) | Volume (L) | Total Weight (kg) | Standard Volume (m3) |
| WL-HF202500 | 2500 | 6 | 4.34 | 130 | 6575 | 1050 | 6900 | 11300 | 13.25 |
| WL-HF203000 | 3000 | 6 | 5.30 | 159 | 8025 | 1300 | 8470 | 13790 | 15.70 |
| WL-HF203500 | 3500 | 6 | 6.25 | 187 | 9475 | 1550 | 10040 | 16280 | 18.15 |
| WL-HF204000 | 4000 | 8 | 7.21 | 216 | 10925 | 1800 | 11600 | 18780 | 20.58 |
| WL-HF204500 | 4500 | 8 | 8.16 | 245 | 12375 | 2075 | 13180 | 21380 | 23.05 |
Standard: maximum working pressure: 36psi/2.5kg/m2 Optional: maximum working pressure: 58psi/4.0kg/cm2
Maximum temperature: 50℃
