Cangzhou Puhui Electromechanical Equipment Co., Ltd
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Electric automatic sewage filter
Electric automatic sewage filter
Product details
电动式自动排污过滤器

Electric automatic sewage filter

One Introduction to electric automatic sewage filter

Electric automatic sewage filterAlso known as electric automatic backwash sewage filter, it has backwash function.
The electric automatic sewage filter consists of a housing, a stainless steel filter tube, an impurity collection section, an electric impurity sewage outlet, an electric water flow guide valve, an electric actuator, and an electric control box. The filter has a timed setting function, which can set the backwash filtration time according to the quality of the medium and the needs of the pipeline system. It relies on an electric actuator to achieve timed fully automatic backwash filtration, sewage discharge, and cleaning. And its cleaning and discharge are completed simultaneously during the online filtration process, without the need to stop the water flow. Fully automated, automatic filtration, sewage discharge, and automatic backwashing have been achieved. The biggest feature is the realization of unmanned operation.

Product parameters of electric backwash sewage filter

1. Supply caliber range DN50 DN65、DN80、DN100、DN125、DN150、DN200、DN250、DN300、DN350、DN400、DN450、DN500、DN600。 It refers to the inner diameter of the inlet and outlet of the electric filter.
2. Pressure rating: 1.0MPa, 1.6MPa, 2.5MPa.
3. Main components: filter body, electric device, control box.
4. Material of the filter itself: carbon steel, stainless steel.


II There are two types of control forms for electric automatic sewage filters

A automatically discharges pollutants according to the set pressure difference; B discharges pollutants at designated intervals. Regardless of which form is chosen, on-site manual operation control is retained.
B. According to the set interval time and on-site conditions, freely setting the interval time and timed discharge is a highly recommended form of automatic discharge. According to the cleanliness of the medium and the needs of the pipeline system, the backwash filtration time can be set, relying on an electric actuator to achieve timed online non-stop fully automatic backwash filtration, sewage discharge, and cleaning.

A. According to the set pressure difference, when the electric sewage filter is in normal filtering state, the electric reducer does not start and the sewage valve is closed. Water enters the water filter cylinder from the inlet, creating a pressure difference. As the filtration continues, impurities adhere to the filter screen, causing the pressure difference to increase. When the pressure difference reaches the preset value, the filter enters a self-cleaning state. The electric reducer starts to drive the filter core at the set speed, and the electric sewage starts. At this time, impurities will be discharged from the pipeline system through the sewage outlet with a certain amount of water, completing automatic rotation, automatic cleaning, and automatic sewage discharge process. After the automatic sewage discharge process, the electric reducer stops running, the electric sewage valve closes, and the filtration system runs normally for filtration work, waiting for the next self-cleaning cycle to enter.

III Working principle of electric automatic sewage filter:

The electric automatic sewage filter is developed based on the mechanical automatic sewage filter. So its working principle is the same as the filtering, discharging, and working principle of the automatic sewage filter. The difference, and most importantly, is the addition of an external control and execution mechanism. Relying on this external control actuator to achieve fully automatic electric discharge.
The electric automatic sewage filter inherits the advantages of traditional automatic sewage filters, and with the help of current technological strength, further meets the usage requirements of different customers, and has successfully developed an electric automatic sewage filter. We have been on the market for 5 years and our mature products have been recognized and welcomed by customers.

Four. Working principle of electric automatic sewage filter

Caliber DN DN100 DN125 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500
Angular formula A import to export mm 200 280 310 350 440 520 630 720 840 950
B center to sewage outlet mm 290 400 450 525 660 800 950 1090 1230 1380
L total length mm 370 530 580 670 820 1000 1180 1350 1500 1680
Cut-Through A import to export mm 350 438 525 700 875 1050 1200 1400 1550 1700
L imported to the sewage outlet mm 260 326 390 520 650 780 885 1040 1145 1250
Discharge outlet 32 40 50 65 80 100 125 150 150 150

Electric filter filtration accuracy

Mesh size mm 4.75 4 3.35 2.8 2.36 2 1.7 1.4 1.18 1 0.85 0.71 0.6
Standard mesh size 4 eyes 5 eyes 6 eyes 7 eyes 8 eyes 10 eyes 12 eyes 14 eyes 16 eyes 18 eyes 20 eyes 25 eyes 30 eyes

Pratt&Whitney filter products also include:Y-shaped filterSemi automatic backwash filterDiffusion filterXH-SLAngle filter.

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