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Company name: Changzhou Peide Water Treatment Equipment Co.,Ltd.
Add: No.206 Qingyang North Road, Changzhou, Jiangsu province, China
Tel: +86-519-85500155
Fax: +86-519-85262955
E-mail:Sales1@cnpeide.com
Home -> Products -> Self-cleaning filter
Automatic self-cleaning filter system

How It Works
The unit consists of two stages of filtration, a coarse pre-filter and a stainless steel fine screen.
The unwanted solids accumulate on the inner surface of the fine screen, building up a filter cake,which filters out even finer particles, creating a pressure differential. Once the pressure drop reaches a preset level, a rinse cycle is activated by the factory supplied control system.

The solids are removed from the fine screen using a spot backwashing method, which aggressively sucks the dirt off the screen, similar to a vacuum cleaner, and are carried tothe drain via the rinse valve. The dirt collector rotates, ensuring the entire screen is cleaned each cycle. The process takes a matter of seconds, without interruption of system flow.    

Control method
Filter has differential switch and integrator. Once the pressure drop reaches a preset level, a rinse cycle is activated by the PLC controller. 

Feature
Structure compact
Low water consumption
Fine filter degree
Low pressure drop

Application
1、Chilling water treating: such like cooling tower, water supplement system, air conditioning system, heat exchange system.
2、Raw water treating: such like surface water, lake, sea water, tank water, well to remove grind, sand, algae, organism etc.
3、Cycling industry water: cooling tower, polishing process water, ion exchange water, spraying process water, heat exchange plant, rolling plant, casting plant etc.
4、Irrigation: farm, dip field, golf, lawn etc.
5、Recycle water

Outside view

          

 

Filter degree

mm

μm

mesh

1mm

1000μm

14

0.841mm

841μm

20

0.707mm

707μm

25

0.595mm

595μm

30

0.5mm

500μm

35

0.42mm

420μm

40

0.354mm

354μm

45

0.297mm

297μm

50

0.25mm

250μm

60

0.21mm

210μm

70

0.177mm

177μm

80

0.147mm

147μm

100

0.125mm

125μm

120

0.105mm

105μm

140

Horizontal type

 

Model

In and out diameter(mm)

Flow rate

(T/H)

Filter area

cm2

Drain

Water consumption(L)

Motor(KW)

Weight(KG)

XLQ-50XM

50

20

1500

50mm

75

0.55

85

XLQ-80XM

80

50

1500

50mm

75

0.55

87

XLQ-100XM

100

80

3000

50mm

150

0.55

210

XLQ-125XM

125

100

3000

50mm

150

0.55

212

XLQ-150XM

150

150

7000

50mm

150

0.55

212

XLQ-200XM

200

300

7000

50mm

150

0.55

220

XLQ-250XM

250

450

11000

80mm

400

0.55

395

XLQ-300XM

300

600

11000

80mm

400

0.55

405

XLQ-350XM

350

900

13500

80mm

400

0.55

625

 

Install way 

Horizontal

 Unit capacity

 15-900T/H,Achieve parallel install to achieve big capacity

 Min work pressure

 0.25Mpa

 Max work pressure

1.0Mpa,1.6Mpa

Filter precision

100-3000um

 Control way

Differential pressure, time and manual

 Max temperature

65℃ (reach to 100℃ if required) 

 Back wash time

50-90S

 Rotating speed

14-20rpm

 Clean way

Scanning type

 Differential pressure in cleaning

0.01-0.08Mpa

 Back wash water consumption

Approximate 280-310L

 Voltage

 

AC220V

380V、50Hz、3PH、CONTROLLER: 220V

 Motor power

0.37Kw 

Material

 Carbon steel with anti-corrosion painting

Screen

Multi stainless steel mesh + pvc structure 

 Drain valve

Cast iron with anti-corrosion painting 

PLC Control 

 

Pressure drop VS flow rate

 Vertical type

Model

In and out diameter(mm)

Flow rate

(T/H)

Filter area(cm2)

Drain

Water consumption(L)

Motor(KW)

Weight(KG)

XLQ-200XT

200

300

7500

50mm

250

0.55

340

XLQ-250XT

250

450

11000

80mm

400

0.55

350

XLQ-300XT

300

650

11000

80mm

400

0.55

365

XLQ-350XT

350

900

13800

80mm

400

0.55

630

XLQ-400XT

400

1200

13800

80mm

400

0.55

650

XLQ-450XT

450

1500

13800

80mm

400

0.55

690

 

 Install way

Vertical installation 

 Unit capacity

15-900T/H,Achieve parallel install to achieve big capacity 

 Min work pressure

0.25Mpa

Max work pressure 

1.0Mpa,1.6Mpa

 Filter precision

100-3000um

Control way

Differential pressure, time and manual

 Max temperature

 65℃ (reach to 100℃ if required)

 Back wash time

 60-120S

 Rotating speed

14-20rpm

 Clean way

 Scanning type

 Differential pressure in cleaning

0.01-0.08Mpa

Back wash water consumption

Approximate 500L

Voltage

 

220V

380V、50Hz、3PH、CONTROLLER: 220V

 Motor power

 0.37Kw

 Material

 Carbon steel with anti-corrosion painting

 Screen

316SS (Woven, ,multi-layer sintered, wedge) 

 Drain valve

Cast iron with anti-corrosion painting 

PLC controller 

 

  

Install notice
1、One check valve must be installed at filter outlet. Return pressure and back water is forbidden, in case of screen out of shape.
2、If system wok pressure over 0.8MPa, should install break valve at drain pipe to reduce impact to screen.
3、Notice motor rotating direction. Shut off power immediately once back rotating (anti-clock wise)occurs. )
4、Installation each part according to arrow direction.
5、Sudden pressure relief at outlet pipe is forbidden. Take normal work pressure 1.3MPa for example,if suddenly open branch valve at outlet, it will occur instant huge different pressure,which damage screen.
6、Make sure filter used under correct work pressure, capacity.
7、If alarms, open by-pass valve for temporary back washing solutions.
8、Make sure control box have constant power supply. If power off, users can open by-pass valve,close in and outlet valve and control box switch.

Installation view
Horizontal install

Vertical install

Install requirement
1、Keep space for filter install and maintenance.
2、Drainage pipe length not longer than 20m. Avoid more turns off, keep outlet pipe parallel with ground.

Testing
1、Close inlet outlet valve before testing. Open by-pass valve. Wash dirties staying in pipes.
2、Open inlet valve gradually. Let water into filter till air comes out from filter house.
3、Check leak at joint part, check in/outlet pressure gauge. Connect power when comes to system pressure.
4、Set up drainage time based on system pressure data.
5、Open outlet valve gradually if testing is normal. Close by-pass valve back to normal filtering.
6、Observe several differential pressure changes and drainage. Finish testing if normal.

Notice in using
Equipment can through into operation directly, as already has trial testing. Users can adjust settings based on actual use. Change relay’s program and parameter is forbidden.

1st operation notice
Follow below steps in 1st operation
Check drainage pipe connection. No up-inclined angle.
Check connection tighten or not.
Check control box in a dry environment.
Connect power cord, green light means normal. Make sure electrical parts is dry. Water is forbidden into control box.

Internal fitting


 

                     

Manufacturing Process 

 


Packing and Shipping 

© 2010 Changzhou Peide Water Treatment Equipment Co.,Ltd. All Rights Reserved
Add: No.206 Qingyang North Road, Changzhou, Jiangsu province, ChinaTel: +86-519-85500155Fax: +86-519-85262955    
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