Brush Type Automatic Self-Cleaning Filter PLC Control for Cooling Tower Circulating Wate

2026-10-26

• Product Description

  Self-cleaning filter with filtration accuracy from 50 to 5000 microns can be selected, with large filtration area and high dirt-holding capacity, which can be customized by users according to actual working conditions. The cleaning method is simple, and the cleaning cycle is monitored to realize automatic cleaning and discharging, and all parameters in the automatic filter control system can be adjusted. It is equipped with motor overload protection, which can effectively protect the motor.

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  Applications	Agricultural irrigation, raw water treatment, industrial circulating water filtration, cooling water treatment, paper industry, plastic industry, power industry and other industries
  Filtration media	water body suspended matter, particulate matter, water dirt, bacteria and algae, rust, etc

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• Product Features

  It adopts electromechanical integration design. The automatic self-cleaning filter is composed of main parts such as driving mechanism, control pipeline (including differential pressure switch), main tube assembly, filter element assembly, cleaning mechanism and connecting flange. The electric controller, control pipeline and drain valve constitute the control part of the filter, which is used to realize the automatic cleaning and discharging process. The control pipeline consists of accessories such as differential pressure switches, pipe joints and brass pipes. The filter uses stainless steel brushes for conventional products, and other materials of brushes.
  (1) The filtration precision is 100 microns by default, and it can be selected from 50 to 5000 microns, with large filtration area and high dirt-holding capacity, which can be customized by users according to actual working conditions.
  (2)The cleaning method is simple, and the cleaning cycle is electronically monitored, which can realize automatic cleaning and discharging. The parameters in the control system of automatic self-cleaning filter can be adjusted.
  (3)With motor overload protection, which can effectively protect the motor.
  (4)It has the characteristics of uninterrupted water supply and no bypass when cleaning and discharging, and the cleaning time is short and the water consumption of discharging is small, not more than 3% of the total flow.
  (5) Strong maintenance, easy to install and disassemble. The connection with the user's pipeline is flange connection, and the flange adopts the national standard flange, which has strong universality.

• Working Principle

  The automatic self-cleaning filter has the function of filtering the raw water and automatically cleaning and discharging the filter element, and the system has uninterrupted water supply when cleaning and discharging.
  The cleaning of automatic self-cleaning filter has two control methods: automatic control and manual control.
  Automatic control: automatic control has two ways: timing and differential pressure. Set the filtering time on the filtering time timer, when the filtering time comes, start the discharge, and the discharge time is set by the discharge time timer; at the same time, the control system compares the system pressure difference with the pressure difference set by the user in real time, and when the system pressure difference reaches the set pressure difference, the filter is also cleaned and discharged, and the discharge time is set by the discharge time timer. When the discharge time is up, the cleaning will stop and the system will return to its initial state, ready for the next filtration process.
  Manual control: Turn the manual/automatic selector switch on the operation panel to the manual position, and the filter will be discharged.

  
  

  Design the corresponding piping interface according to the different working conditions

  

  

  

  

  

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• Key components of the equipment:

  Selection of imported bipolar reducer, electrical components. Adopting PLC Siemens control system. Optional electric ball valve. The whole equipment system can run efficiently and stably..

• Technical parameters

  

  Use pressure: 0.2~2.5MPaTank material: Q235B,SS304, SS316L, carbon steel lined with rubber

  Operating temperature: 80°CCleaning brush material: 304, 316L

  Use voltage: 380V 50HZCleaning method: brush type

  Backwashing water consumption: W 2%Washing time: 60s adjustable

  Filtration precision: 50~5000 micronsFilter element material: 304, 316L, 2205

  Control mode: manual, automatic (differential pressure, time)

  Can be customized according to different working conditions

  Model number	Tank specification	Inlet &Outlet	Max flow rate t/h	Accuracy class	Motor power / Reducer model
  LFZ-250-50	Φ273*1000	DN25-DN50	50	≥50μm	0.18KW/RV040
  LFZ-300-100	Φ325*1200	DN80-DN125	100	≥100μm	0.37KW/RV063
  LFZ-400-150	Φ426*1300	DN150	200	≥200μm
  LFZ-480-200	Φ480*1550	DN200	300	>≥300μm
  LFZ-530-250	Φ530*1650	DN250	450	≥300μm	0.75kw/RV075
  LFZ-600-300	Φ600*1750	DN300	550	≥300μm
  LFZ-700-350	Φ700*2000	DN350	700	≥500μm
  LFZ-800-400	Φ800*2150	DN400	1000	≥800μm
  LFZ-900-450	Φ900*2300	DN450	1200	≥1000μm
  LFZ-1000-500	Φ1000*2500	DN500	1500	≥1500μm
  LFZ-1100-600	Φ1100*2600	DN600	1800	≥3000μm	1.5kw/RV090
  LFZ-1200-700	Φ1200*2800	DN700	2300