Automatic Backwash Prefilter for Reverse Osmosis System
Basic Info.
Power | 220V/110V |
Filtration Precision | 50/100/130/200/400 Micron |
Pressure Loss | 0.2-0.5 Bar |
Application | Irrigation/Industrial |
Control Way | Differential Pressure/Time/Manual |
Working Pressure(Min.) | 2 Bar |
pH Valve | 4-13 |
Filtration Modules | 3 Inch |
Working Pressure(Max.) | 8 Bar |
Pipe | Carbon Steel/Stainless Steel/HDPE |
Transport Package | Wooden Case |
Trademark | CDFS |
Origin | China |
HS Code | 8421219990 |
Production Capacity | 2600 Sets Per Year |
Product Description
Working principle Automatic disc filter system with disc filtering element(as below) with 2"/ 3" /4" backwash valves,air valve,manifolds,controller. Easy to install. Automation available in 220V.Filter materialsItems | Materials | |
Disc filter modules | Nylon | |
Pipeline | Carbon steel/HDPE /Stainless steel | |
Pressure gage | Stainless steel | |
Auto backwash valve | Nylon/stainless steel | |
Electromagnetic valve | Brass/nylon | |
Air valve | Plastic | |
Controller cover | Plastic/Stainless steel |
Design and selection of models1.Water quality classificationA.: Water of good quality: city tap water, well water from stable aquifer.B.: Water of general quality: cooled circulating water, surface water treated by sedimentation, and drained water treated by effective deposition and completely biological treatment.C.: Water of relatively poor quality: groundwater from aquifer of poor quality, drained water treated by effective deposition but with poor biological treatment, and surface water with enormous microbes.D. The worst quality: well water with rich iron and manganese elements, surface water affected by flooding and without sedimentation, and drained water without precipitation and biological treatment.Different water qualities have different influences on the filter's operation period, so in general it is better to keep the system's backwash intervals no less than 1 hour.
Raw water quality | Good water quality | General water quality | Poor water quality | The worst quality | ||||||||
Filtration range | 200 | 100μ | 50μ | 200μ | 100μ | 50μ | 200μ | 100μ | 50μ | 200μ | 100μ | 50μ |
Models | Flow(m3/h) | Flow(m3/h) | Flow(m3/h) | Flow(m3/h) | ||||||||
DLLF-4-3 | 224 | 176 | 128 | 168 | 129 | 102 | 120 | 88 | 70 | 72 | 55 | 40 |
DLLF-4-4 | 280 | 210 | 160 | 210 | 154 | 128 | 150 | 105 | 88 | 90 | 65 | 51 |
DLLF-4-5 | 374 | 294 | 214 | 281 | 216 | 171 | 200 | 147 | 118 | 120 | 91 | 68 |
DLLF-4-6 | 448 | 352 | 256 | 336 | 258 | 205 | 240 | 176 | 141 | 144 | 109 | 81 |
DLLF-4-7 | 522 | 410 | 298 | 392 | 301 | 238 | 280 | 205 | 164 | 168 | 127 | 94 |
DLLF-4-8 | 597 | 469 | 341 | 448 | 344 | 273 | 320 | 234 | 188 | 192 | 146 | 108 |
4 inch disc filter system demensions
Model | Water in/out(mm / inch) | H(mm) | H1(mm) | H2(mm) | D(mm) | L(mm) |
DLLF-4-3-A | 150 / 6 | 1416.5 | 282.5 | 594 | 1200 | 1195 |
DLLF-4-4-A | 200 / 8 | 1531.5 | 310 | 651.5 | 1200 | 1470 |
DLLF-4-5-A | 200 / 8 | 1531.5 | 310 | 651.5 | 1200 | 1745 |
DLLF-4-6-A | 250 / 10 | 1630.5 | 332.5 | 701 | 1200 | 2020 |
DLLF-4-7-A | 250 / 10 | 1630.5 | 332.5 | 701 | 1200 |
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