Shallow sand filters consist of one or more standard high-speed sand tank units, featuring a unique distributor and collector system internally. Equipped with a distinctive automatic backwash valve, they enable sequential individual backwashing of multiple standard high-speed sand tanks during normal system operation through fully automated program control. Advantages include minimal backwash water consumption, convenient installation, and ease of operation. This equipment delivers high flow rates with minimal maintenance requirements. Available in both vertical and horizontal configurations to meet diverse user specifications, it serves water treatment needs across multiple industries.
Filtration Status
The shallow sand filter consists of multiple filtration units arranged in parallel. During filtration, raw water is evenly distributed through a proprietary water distributor, flowing in laminar flow through the filter media bed (high-grade uniform-grain quartz sand). Impurities are trapped within the media bed as water passes through. Multiple uniformly distributed collectors at the filter's base evenly gather and discharge the filtered water. This cross-flow filtration enables the filter to achieve excellent filtration results even at high flow rates.
| Model |
Tank Specification |
Control valve specifications |
Discharge port diameter |
Maximum flow rate per tank m³/h |
Maximum flow rate of two tanks connected in parallel m³/h |
Maximum flow rate of three tanks in parallel m³/h |
Maximum flow rate of four tanks in parallel m³/h |
Maximum flow rate of five tanks in parallel m³/h |
| LFQ-600 |
Φ600*1550 |
DN50 |
DN50 |
15 |
30 |
45 |
60 |
75 |
| LFQ-800 |
Φ800*1650 |
DN50 |
DN50 |
30 |
60 |
90 |
120 |
150 |
| LFQ-1000 |
Φ1000*1750 |
DN80 |
DN80 |
45 |
90 |
135 |
180 |
|
| LFQ-1200 |
Φ1200*1950 |
DN80 |
DN80 |
60 |
120 |
180 |
240 |
300 |
| LFQ-1400 |
Φ1400*2150 |
DN80 |
DN80 |
70 |
140 |
210 |
280 |
350 |
| LFQ-1600 |
Φ1600*2200 |
DN100 |
DN100 |
100 |
200 |
300 |
400 |
500 |
| LFQ-1800 |
Φ1800*2250 |
DN100 |
DN100 |
120 |
240 |
360 |
480 |
600 |
| LFQ-2000 |
Φ2000*2300 |
DN150 |
DN100 |
150 |
300 |
450 |
600 |
750 |
| LFQ-2200 |
Φ2200*2300 |
DN150 |
DN100 |
200 |
400 |
600 |
800 |
1000 |
| LFQ-2400 |
Φ2400*2300 |
DN200 |
DN200 |
230 |
460 |
690 |
920 |
1150 |

| Model |
Tank specifications |
Import and export specifications |
Single tank flow |
Work pressure |
| LFQ-400 |
ф400*1550 |
DN50 |
4t/h |
16kg |
| LFQ-500 |
ф500*1550 |
DN50 |
6t/h |
16kg |
| LFQ-600 |
ф600*1550 |
DN50 |
10t/h |
16kg |
| LFQ-800 |
ф800*1650 |
DN50 |
25t/h |
16kg |
| LFQ-1000 |
ф1000*1750 |
DN80 |
35t/h |
16kg |
| LFQ-1200 |
ф1200*1950 |
DN80 |
50t/h |
16kg |
| LFQ-1400 |
ф1400*2150 |
DN80 |
60t/h |
16kg |
| LFQ-1600 |
ф1600*2200 |
DN100 |
80t/h |
16kg |
| LFQ-1800 |
ф1800*2250 |
DN100 |
100t/h |
16kg |
| LFQ-2000 |
ф2000*2300 |
DN125 |
120t/h |
16kg |
| LFQ-2200 |
ф2200*2300 |
DN125 |
160t/h |
16kg |
| LFQ-2400 |
ф2400*2300 |
DN150 |
190t/h |
16kg |






1. Question: What industrial water filters do you mainly produce?
A: Our factory mainly produces self-cleaning filters, security filters, bag filters, sand and gravel filters, fiber ball filters, dirt removers, backwash filters, etc., which are mainly used in industrial water treatment equipment. In addition, we also produce accessories for filters such as filter screens, filter cartridges, filter bags, and other filter elements.
2. Question: What is the maximum processing capacity of the Shallow Sand Filter?
A: This filter can achieve a maximum processing capacity of 1000m ³/h.
3. Which type of filter can be used to reduce turbidity?
A: You can use our quartz sand filter, which uses quartz sand as the filtering medium to filter water with high turbidity through a certain thickness of granular or non granular quartz sand under a certain pressure, effectively intercepting and removing suspended solids, organic matter, colloidal particles, microorganisms, chlorine, odors, and some heavy metal ions in the water.
4. Question: Where is your factory located? How can I get there?
A: Our factory is located in Xinxiang City, Henan Province. It takes 2 hours by high-speed rail from Beijing or fly to Zhejiang Airport, and then we will pick up your team. We warmly welcome you to visit us anytime.
5. Q: What is the installation method of the filter?
A: Skid loading and transportation. Just connect the inlet/outlet flange and drain it.
6. Question: Can you customize products?
Of course, if you can provide us with detailed specifications or drawings. Our mission is to inspire customers with ideas about our products and provide satisfactory solutions.