Categories: Products: 
    Water Filter
    Self-cleaning filter
    Back flush filter
    UV Sterilizers
    Descaling equipment
    Water Treatment Accessori…
    Fitting
    Soft water series
    Filter Deaerator
    Condenser Tube Cleaning S…
    Liquid Dosing System
    Pump controlled pressuris…
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 -> Water Filter
Bypass filter for circulating water
Bypass filter for circulating water removes impurities from raw water to achieve water reuse. Filter is automatic operation and back-flushing, under control system of dp-switch (pressure drop), butterfly and PLC control system.
 
Pictures

      Big-flow auto              Small-flow auto             big-flow                      manual small-flow     manual
 
Parameter

Single Flow Rate

6-300m3/H 

Design Pressure

7.5-16 bar 

Water inlet pressure

2.5-3 bar 

The Range of Working Temperature

20-120℃ (68-248°F)

Seal Type

O-ring and Washer 

Connect Method

Flange 

Surface Treatment

Matt Spray Beads, Mirror Polishing, Electropolishing 

Control Method

Differential pressure switch, pneumatic butterfly valve, PLC

Filter medium type

Quartz sand, manganese sand, activated carbon, Anthracite, fiber ball

Filter medium supply

We can supply different kind filter medium and combination

Equipment Chamber Material

Carbon steel、 304ss or 316L

The key of filter effect

water distribution and catchment technology

 
 
How does the bypass filter for circulating water works
Raw water passes inside water distributor into filter media layer (quartz sand), which let impurities stay at sand layer. Clean water flow out stably from water collector. When the pressure drop reaches the given value, the cleaning cycle is started. The rinse control start working at pressure drop value at 0.05-0.15MPa, return to 0.02-0.04MPa after back flushing.
 
Quartz sand inside tank mixed with coarse and fine sands. They are allocated above water distributor averagely. Even in back flushing, water consumption is little.
Tank inside has rubber line and plastic line for option. It is for anti-corrosion, which ensure a tank can be used 10-20years. The completed filter control system has finished already in factory.
 
Where to use bypass filter for circulating water
Swimming pool, hotel spa, water entertainment, aquarium, fish farm 
Irrigation in agriculture
Drinking water pre-treatment
Industrial recycled water, central air-condition system
 
We have models for choose
bypass filter for circulating water with water enters from top
 

 

Item

Model 

Ø
mm

height
mm

Connect size
mm

Filter area

Flow rate
T/H

1

QLQ500×710

520

816

40

0.2

6-10

2

QLQ600×766

620

874

40

0.28

8-14

3

QLQ700×819

720

899

40

0.38

12-19

4

QLQ800×872

820

957

50

0.5

15-25

5

QLQ900×1024

920

1104

50

0.64

18-30

6

QLQ1000×1079

1000

1164

50

0.79

23-39

7

QLQ1100×1131

1100

1211

50

0.95

28-47

8

QLQ1200×1182

1200

1267

80

1.13

33-55

 
 

Item

Model 

Ø
mm

height
mm

Connect size
mm

Filter area

Flow rate
T/H

1

QLQ1400×1700

1400

1700

100

1.54

45-75

2

QLQ1600×1800

1600

1800

150

2.01

60-100

3

QLQ1800×1900

1800

1800

150

2.54

75-125

4

QLQ2000×2000

2000

1900

150

3.14

95-155

5

QLQ2000×2000

2200

2000

150

3.8

115-190

6

QLQ2400×2100

2400

2100

150

4.52

130-210

7

QLQ2600×2400

2600

2400

150

5.3

145-225

8

QLQ2800×2500

2800

2500

200

6.15

155-240

9

QLQ3000×2600

3000

2600

200

7

170-255

 
 
Diagram on pressure drop
 
 
Clear drawing help you understand
 
Attentions in using
1. When bypass filter for circulating water first into use, users should clean sand firstly, after that to start filtration.
2. Turn all operating valves slowly, to avoid water impact. 
3. Keep sharp or hard things away from filter. 
4. Keep away from fire and high temperature.
5. Make sure sand is clean when not using. 
 
How to install?
Before installing a bypass filter for circulating water , please make sure the ground is strong and even. The space is big enough for connecting pipes, valves and repair.
The filter needs changes sands after using some time. Follow below steps one by one:
1. Take down control valve
2. Pour sand into tank, by covering a protective cover at the inlet to avoid sand inside
After replacing new sand, return control valve, connect tightly. Remember there’s a pressure gauge, but not fasten it tightly. 
Make sure each pipe connection is correct and no leak. 
 
Inside look
 
Filter media
Natural quartz sand: contains SiO2, smooth and clean out appearance. 
Quartz sand from mine bed:  irregular shape of sand, with strong hardness.
Sea sand: smooth and clean out appearance. 
 
Other fittings
 
Manufacturing process
 
Packing

© 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    
Emma
Annie