Compact Structure Rapid Backwash Sand Filter Low Energy Consumption Continuous Filtration
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Compact Structure Rapid Sand Filter Low Energy Consumption Continuous Filtration
Brief Description
Compact structure saves space, stable operation and low energy consumption, making it an ideal choice for modern industrial water treatment. Utilizing the shallow filtration principle, combined with automatic differential pressure or timer control, it achieves continuous and uninterrupted filtration. Widely used in the raw water pretreatment stages of the power, metallurgical, and chemical industries to ensure clean water quality and extend equipment lifespan.

Product Overview
The automatic shallow filter device consists of multiple standard high speed sand cylinder units equipped with unique water distributors and collectors.With dual direction automatic flushing valves, it ensures efficient and automatic cleaning of sand filters during normal system operation.
Technical Advantages
The automatic shallow filter utilizes high-quality quartz sand filter material as the medium filter element and achieves fully automatic program control through plc combined control of multiple electric valves.It features advantages such as low backwash water consumption, easy equipment installation, and user friendly operation.With high flow capacity and no maintenance required, this equipment is suitable for water quality treatment in industrial, residential, and landscaping circulating water systems.
Technical Parameters
| Filtration performance | Inlet SS: 15-30mg/L; Outlet SS: ≤5mg/L |
| Design pressure | 1.0MPa |
| Design inlet pressure | 0.25-0.35MPa |
| Design backwash pressure | 0.25-0.35MPa |
| Design filtration rate | Normal 35-45m/h, maximum 50m/h |
| Electrical conditions | Without water pump: 220V; With water pump: 380V |
| Backwash control | Manual, time, differential pressure, all adjustable on-site |
| Backwash time | Factory preset 5min (adjustable on-site) |
| Communication interface | RS485, passive dry contact |
Equipment Model
SYS 1200 A 1.0 QCS
1 2 3 4 5
1…………Water Doctor Brand Code
2…………Shallow filter tank diameter (mm)
3…………Number of booster backwash pumps (A: Single pump configuration; B: Dual pump configuration)
4…………Operating pressure
5…………Shallow sand filter
| Model | Filter flow rate (m³/h) |
| SYS-600A1.0QCS | 10-17 |
| SYS-800A1.0QCS | 17.5-27 |
| SYS-1000A1.0QCS | 27.5-35.5 |
| SYS-1200A1.0QCS | 36-51 |
| SYS-1400A1.0QCS | 54-70 |
| SYS-1600A1.0QCS | 70-90 |
| SYS-1800A1.0QCS | 89-110 |
| SYS-2000A1.0QCS | 110-141 |
| SYS-2200A1.0QCS | 133-171 |
| SYS-2400A1.0QCS | 158-203 |
Application Areas
Cooling circulating water systems, Chilled water circulating water systems, Heating circulating water systems, Industrial circulating water systems
Company Profile
Beijing SYS Science & Technology Co., Ltd was founded in 2000 and is an innovative comprehensive service provider specializing in integrated water environment governance. Adhering to the mission of "taking water treatment as its own responsibility", SYS continuously optimizes and innovates core technologies and services from a systematic perspective, based on its proprietary core technologies and 25 years of experience in water environment governance. It has established a full-lifecycle integrated management service system covering "consultation, planning, design, manufacturing, implementation, and operation", and possesses strong market competitiveness in fields such as basin planning and governance, construction and upgrading of urban and industrial park sewage treatment facilities, water quality improvement of rivers, lakes and landscapes, black and odorous water treatment, rural sewage treatment, and circulating water system treatment.
Rooted in China and serving the world, SYS has carried out exchanges and cooperation with more than 20 countries and regions globally. Over the past 25 years, it has participated in the construction and operation of more than 1,000 water resources projects and over 5,000 circulating water projects.
As a national high-tech enterprise, SYS has successively overcome key technical challenges such as ultra-limit nitrogen removal, ultra-limit phosphorus removal, low-temperature sewage biological treatment, sludge source reduction, and micro-polluted water treatment through continuous R&D and technological accumulation. It holds 124 independent intellectual property rights, including 24 invention patents. Its three core proprietary technologies—Rapid Separation Biological Treatment Technology, Spore Transfer Technology, and Ion Balance Device Technology—have been evaluated by experts from the Ministry of Science and Technology as reaching the international advanced level and leading domestic level overall.
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