Intelligent PLC Self-cleaning Filter

Intelligent PLC Self-cleaning Filter is an inline unit for closed-loop water pipelines, fitted with stainless steel wedge wire screen, differential pressure sensor and PLC control box. Water flows through the screen to trap suspended solids. When pressure difference or timing signal triggers, PLC drives suction cleaning arm & backwash system to strip deposits, waste discharges via drain valve without flow interruption. It adopts flange connection to protect pumps and valves in industrial circulating water systems.

Product Advantages

Stainless steel filter screen enables solid–liquid separation by retaining suspended particles in flowing water.
Suction cleaning arm combined with automatic backwash structure removes accumulated solids during operation.
Gear motor drives the cleaning mechanism to perform controlled mechanical scraping and suction action.
Electrical control box integrates automated control of filtration, cleaning, and drainage cycles.
Continuous inlet and outlet flow design allows filtration and cleaning without interrupting system operation.
Backwash process uses controlled discharge flow to reduce water consumption during cleaning cycles.
Filter housing protects downstream equipment such as pumps, valves, and heat exchangers from particle damage and blockage.
Drain valve and discharge outlet structure enable direct removal of separated solids from the system.

Why Choose Us?

Stainless steel screen for solid-liquid separation in continuous flow.

Suction arm + backwash system cleans screen during operation.

Gear motor drives automatic cleaning mechanism.

PLC control integrates filtration, cleaning, and drainage cycles

Continuous inlet/outlet design ensures non-stop operation.

Drain valve discharges solids to protect downstream equipment.

Everything You Need to Know

Q1: Does the filter need to stop operation during cleaning?

No. The system uses a suction/backwash cleaning mechanism that removes particles while maintaining continuous inlet and outlet flow.

Q2: What triggers the automatic cleaning cycle?

Cleaning is activated by differential pressure signals or PLC time settings, typically when pressure reaches a preset range (e.g., 0.05–0.1 MPa).

Q3: What materials are used for the filter screen?

The filter screen is made of stainless steel, usually 304, 316L, or duplex stainless steel, selected based on water quality and corrosion conditions.

Q4: What systems can this filter be installed in?

It is installed in cooling water loops, HVAC circulation systems, and industrial process water pipelines using flange connections for inline operation.