China Automatic Backwash Filter Manufacturers and Suppliers - Factory Direct Wholesale

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Your Professional Automatic Backwash Filter Supplier！

Xiamen Superb Technology Co., Ltd. is a professional Chinese manufacturer of irrigation‑and‑cooling solutions. Established in 2003, our factory offers a comprehensive range of rugged, high-performance products, including drip tape, plastic and metal sprinklers, pop-up sprinklers, LDPE tubing, fog nozzles, fog machines, filters, misting cooling systems with pumps, and solenoid valves. Each item is designed with precision engineering, stringent quality control, and innovative research.

2" T Type Auto Disc Filtration System
2 T Type Auto Disc Filtration System - Expert in Automatic Backwash Double Barrel Disc FiltrationCombining deep filtration and intelligent self-cleaning technology, it automatically detects pressure
3" T Type Auto Disc Filtration System
3-inch T-type automatic disc filtration system - high flow fully automatic backwash filtration expert

Why Choose Us

Quality Control

From raw material selection to final inspection, our structured quality control system ensures product consistency, while fast response times and ongoing technical support help reduce purchasing risks.

OEM/ODM

We offer customized product design, specifications, and packaging to match different market standards, helping buyers adapt quickly to regional requirements and improve market competitiveness.

Sales Market

With more than 20 years of export experience, we serve customers in South America, North America, Europe, Oceania, Africa, Southeast Asia, and the Middle East, 50+ countries.

Rapid Response

24‑h turnaround on all inquiries. Dedicated support team for all pre‑, in‑, and post‑sales stages.

Overview of Automatic Backwash Filter

An automatic backwash filter is a self-cleaning filtration system that removes contaminants from liquids (like water or oil) without manual intervention, using a pressure-sensitive, automated cycle to clean its own filter media. It ensures continuous, uninterrupted, high-capacity filtration, protecting downstream equipment from debris, sediment, and fouling.

Product Specification

We offers the following product specifications：

Filter unit	2 inch
Number of filter elements	1
Filtration accuracy	20um-400um
Backwash pressure	greater than 2.8Bar
Maximum working pressure	10Bar
Filtration area	880cm3
Backwash flow rate	8.11m3/h x 1
Maximum flow	20t/h
Backwash time	10-20 seconds
External material	Reinforced Nylon, PP
Inlet and outlet interface	2-inch NPT, clamp
Dimensions	490 x 290 x200
Weight	6kg

Product advantages

Automatic online continuous filtration – The filter system does not have to be taken offline to enter the cleaning mode because the backwash cycle cleans the screen segment wise without interrupting the fluid flow and continue filtering the fluid.

A gear motor is used to drive the filter backwashing system.

The unique and innovative internal structure ensures delivery of a high-quality backwashing and filtration system.

Provides the end-user with long term operation and precision filtration with no flow interruption. Impurities are easily flushed away from the filter screen.

The filters are equipped with wedge wire screen or multi layered filter element. These elements provide precision filtration (as fine as 50μm), are corrosion resistant, and sustain much more wear and tear.

Cost effective, easy to operate, requires minimal maintenance and is environmentally friendly.

The control system can be tailored to monitor pressure and time settings for various fluids.

Compact design – Installation requires minimal space and is easy to install. The inlet and outlet ports are adjustable according to the end-user’s requirements.

Components

Filter (filter element)

The filter is the core component of the automatic backwash filter, which is used to intercept particulate impurities in the water. Common filter materials include stainless steel, nylon, copper, etc. The filter aperture can be adjusted according to actual needs, usually between 10 and 200 microns.

Shell

The shell is used to protect the filter and other internal components. It is usually made of stainless steel, carbon steel or plastic and has good corrosion resistance and pressure resistance. The design of the shell must ensure the sealing of the equipment and be easy to clean and maintain.

Backwash device

The backwash device is a key component of the automatic backwash filter, which is responsible for starting the cleaning process when the filter is blocked. The backwash device includes a backwash arm, a backwash valve, and a cleaning motor. The backwash arm is usually located inside the filter.

Control system

The automatic control system is the core of realizing the automatic backwashing function. The control system consists of a pressure difference sensor, a time controller, and a solenoid valve. It can monitor the working status of the filter in real time and automatically start the backwashing process according to the preset program or pressure change.

Drain port

The drain port is used to discharge impurities washed off the filter during the cleaning process. The drain port is usually connected to the drain pipe so that the dirt can be discharged in a centralized manner.

Application

Metallurgical Industry:
Used for turbid circulating water filtration, steel mill cooling water, and recirculating water systems — primarily for removing impurities such as steel scale and iron filings.

Industrial Filtration:
Applied in cooling water filtration, industrial circulation water treatment, water recovery filtration, workshop process water, pickling systems, continuous casting water filtration, HVAC systems, and spray nozzle protection.

Seawater Desalination:
Widely used in pre-filtration for seawater desalination to prevent blockage caused by sand, algae, and suspended solids in plate heat exchangers and other equipment.

Environmental Water Treatment:
Mainly used as pre-filtration for RO systems and for removing sand, algae, and organic matter from groundwater extraction.

Agricultural Irrigation:
Our suction-type backwash filters are suitable for water treatment in spray and drip irrigation systems, including groundwater, municipal water, rivers, lakes, seawater, orchards, nurseries, golf courses, and parks.

Customization Process

Requirement Discussion: Contact us and provide your design drawings, size specifications, and other technical parameters.

Design Proposal: Our professional team will develop a design proposal and provide a quotation based on your requirements.

Sample Production: We produce samples according to the design proposal and conduct rigorous testing.

Mass Production: Upon your approval, we commence mass production to ensure timely delivery and consistent quality.

After-Sales Service: We offer ongoing technical support and service to ensure the long-term stable operation of our products.

Certifications

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Package & Delivery

Package: Standard export package or Custom

Delivery: By air express, by sea

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FAQ

Q: What is an automatic backwash filter and how does it work?

A: An automatic backwash filter is a self-cleaning filtration system that removes accumulated debris from the filter element by reversing the flow or using internal suction mechanisms, without interrupting normal operation.

Q: What are the main advantages of automatic backwash filters?

A: They reduce manual maintenance, ensure continuous operation, improve filtration consistency, and lower long-term labor and operational costs compared to manual cleaning systems.

Q: What applications are these filters commonly used for?

A: They are widely used in agricultural irrigation, industrial water treatment, cooling systems, municipal water supply, and pre-filtration for sensitive equipment.

Q: What types of filter elements are used in backwash systems?

A: Common filter elements include screen, disc, or mesh structures, depending on the design and filtration requirements.

Q: What triggers the backwash cycle?

A: Backwashing is typically triggered by pressure differential, time intervals, or manual override. Advanced systems may use programmable controllers for precise operation.

Q: Does backwashing interrupt system flow?

A: High-quality systems are designed to maintain continuous flow during backwashing, either through parallel units or internal mechanisms that clean sections sequentially.

Q: What filtration levels are available?

A: Automatic backwash filters are available in a wide range of micron ratings, typically from 20 to 500 microns, depending on application needs.

Q: What is the typical operating pressure range?

A: Most systems operate within 2 to 10 bar (30 to 150 PSI), though industrial models may support higher pressures.

Q: How much water is used during backwashing?

A: Water consumption during backwash is relatively low and optimized for efficiency. It typically represents a small percentage of total system flow.

Q: What materials are used in construction?

A: Systems are commonly built with stainless steel, carbon steel with anti-corrosion coatings, or high-performance polymers, depending on environmental and operational requirements.

Q: Are these systems suitable for high-contamination water sources?

A: Yes, automatic backwash filters are designed to handle high levels of suspended solids and are often used as primary or secondary filtration in challenging conditions.

Q: What maintenance is required?

A: Routine maintenance is minimal and includes periodic inspection of filter elements, valves, and control systems. Proper setup significantly reduces manual intervention.

Q: Can these filters be integrated into automated systems?

A: Yes, most units support integration with PLC systems, remote monitoring, and smart control platforms, making them suitable for modern automated operations.

Q: What certifications should buyers consider?

A: Buyers should look for ISO-certified manufacturing, CE compliance for Europe, and other relevant standards depending on application and market requirements.

Q: What factors should be considered when selecting an automatic backwash filter?

A: Key considerations include flow rate, filtration precision, pressure rating, automation features, water quality conditions, installation space, and after-sales support.

We're well-known as one of the leading automatic backwash filter manufacturers and suppliers in China. With a professional production team, we are able to meet the needs of the majority of our customers. Please rest assured to wholesale high quality automatic backwash filter from our factory.

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