Backwash Filters: Efficient Filtration Solutions for Industrial Applications

Introduction

As a leading manufacturer of backwash filters with years of expertise, we specialize in high-performance filtration systems designed for industrial, commercial, and municipal applications. Our self-cleaning backwash filters ensure minimal maintenance, high efficiency, and long-term reliability. This article explores their working principle, key features, advantages, specifications, and applications.

How Does a Backwash Filter Work?

A backwash filter is an automatic self-cleaning filtration system that removes suspended solids from liquids (water, oils, chemicals) without interrupting the flow.

Working Principle:

1. Filtration Phase:

Liquid enters the filter and passes through a stainless steel wedge-wire screen (or other filter media).

Contaminants are trapped on the screen’s surface while clean fluid exits.

2. Backwash Phase:

When pressure differential (ΔP) increases due to clogging, the system triggers automatic backwashing.

A rotating suction scanner or reverse flow mechanism cleans the screen by flushing trapped debris out through a discharge valve.

The process lasts 10-30 seconds and requires no manual intervention.

3. Continuous Operation:

The filter resumes normal operation immediately after backwashing, ensuring uninterrupted flow.

Key Features of Our Backwash Filters

Our filters are engineered for durability, efficiency, and low maintenance:

✔ Self-cleaning design – No manual cleaning required.

✔ High filtration accuracy – Ranging from 20 to 3000 microns.

✔ Stainless steel construction – Resistant to corrosion and high pressure.

✔ Low pressure drop – Energy-saving operation.

✔ PLC control system – Fully automated with customizable settings.

✔ Compact & modular design – Easy installation and scalability.

Advantages Over Conventional Filters

Compared to traditional bag or cartridge filters, our backwash filters offer:

✅ No filter replacement costs – Eliminates disposable cartridges/bags.

✅ Zero downtime – Continuous operation during backwash.

✅ Reduced maintenance – Fully automated, saving labor costs.

✅ Long service life – Robust construction for harsh environments.

✅ Environmentally friendly – Less waste generation.

Applications of Backwash Filters

Our filters are widely used in:

1. Water Treatment

Municipal drinking water

Wastewater recycling

Irrigation systems

2. Industrial Processes

Cooling water filtration

Chemical & pharmaceutical manufacturing

Oil & gas pipelines

3. Marine & Offshore

Ballast water treatment

Seawater desalination

4. Food & Beverage

Process water filtration

Sugar & beverage production

Why Choose Our Backwash Filters?

As a trusted manufacturer, we guarantee:

🔹 Customized solutions – Tailored to your flow rate, pressure, and media.

🔹 ISO-certified production – Strict quality control.

🔹 Global shipping – Reliable logistics support.

🔹 24/7 technical support – Expert assistance post-purchase.

Conclusion

Our backwash filters provide a cost-effective, low-maintenance solution for industries requiring high-efficiency liquid filtration. With automated self-cleaning, robust construction, and versatile applications, they outperform traditional filters in reliability and operational savings.