Brush type pipeline automatic backwash filter

Product introduction

Brush type pipeline automatic backwash filter is a kind of automatic self-cleaning filter suitable for harsh environment, for different use requirements can be equipped with 3500-50 micron screen, 8 "-36" caliber. The filter self-cleaning process is initiated by a differential pressure switch that monitors the differential pressure at the inlet and outlet of the filter at all times. The differential pressure switch is usually preset to 0.5bar (7psi).

Working principle

When the pressure difference between the filter inlet and outlet reaches a preset value, the filter will start the self-cleaning process. The whole self-cleaning process consists of two steps: opening the blowdown valve on the upper cover of the filter; The motor drives the two stainless steel brushes in the body filter screen to rotate, and the impurities caught by the filter screen are brushed down by the steel brush and discharged from the blowdown valve. The whole cleaning process takes about 15-60 seconds. The system does not interrupt the flow during cleaning. The whole operation process of the filter is controlled by a randomly equipped control box.

Characteristics and advantages

Uninterrupted water supply: cleaning water is very little, is 5% of the filter water output, flushing time is 2 ~ 15 seconds, the whole system uninterrupted water supply.

High filtration accuracy: the maximum filtration accuracy can reach 20 microns, there are a variety of precision screen for you to choose.

Large filter area: the effective filter area of the standard filter screen is 7 ~ 40 times of the entrance area.

Reliable cleaning: there are a variety of control methods, manual, pressure difference, time, PLC program logic control and other options.

Economical and simple installation: the structure is diverse, suitable for all kinds of site installation, without affecting the operation effect.

Long service life: the normal life is more than 10 years, the screen is stainless steel, according to the need, can be easily replaced with different specifications of the screen.

Comprehensive parameter

Operating flow: 20-5000m3/h

Please contact the manufacturer for details. Different water quality & accuracy and corresponding flow rate are different

Minimum working pressure: 2Kg

If the working pressure is too low, booster pump equipment can be set up at the sewage outlet

Maximum working pressure: 10Kg; 150psi

According to user requirements can be special high pressure type, details contact with the manufacturer

Filter area: 3000cm2 -20000 cm2

Inlet/outlet diameter:,80,100,150,200,250,300,350,400,500,600,800 50 mm;

Maximum operating temperature: 70°C;

Detailed presentation