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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 -> Back flush filter
Automatic backwash water filter
Product Model:FLQ-PZ

Function and Application
Automatic backwash filter is widely used in a variety of water systems, process water systems and industrial cooling water systems, especially in online 24 hours system. It can remove all kinds of mechanical impurities in water, ensure safe and reliable operation of system. Our filter is the ideal alternative products, the indicators can reach the same level of imported filters.

Structure and Working Principle
P-type automatic sewage filter is made of high-quality carbon steel cylinder, the special structure of the stainless steel wedge filter screen, flow direction valve and sewage drain. In the working status, flow direction valve is on, the water flow from the inlet into the filter, through the filter screen to the outlet (see Figure 1). When the filter needs sewage, flow direction valve closed, open the drain valve, water flows through the first half of the mesh filter, part of the water flow into the system from the outlet, the remaining water flow from the backside of the filter into the inside, automatic backwash the filter screen (see Figure 2). So that the entire washing process is operating normally, without downtime.
Flow direction valve opening mechanism include sub-manual and electric type, when using an electric opening mechanism with clock control electrical control box, it can set the time required to achieve automatic cleaning sewage, then the outfall installed electric ball valves, flow direction valve and sewage electric valve to achieve linkage.

Figure1 Normal status(flow direction valve open) Figure2 Backwash status(flow direction valve closed)

Features:
1.Small volume, low cost, no filter, a small amount of maintenance. Long mesh tube network life and high reliability.
2.High degree of automation, easy operation and management, long-term unattended operation.
3. Low pressure loss, energy saving, the use of the main channel hydraulic backwash, no need for backwash water.
4. Filtration precision: 1000-5000μm.
5. Easy to install, can be installed directly on the pipe, particularly suitable for field use under various process conditions.
6. Widely usage, ensure a safe operation of the water utility, simple and reliable method in any backwash process, can maintain uninterrupted normal operation.

Applications:
1. The domestic water supply, water supply and pre-filtering for industrial water supply;
2. steel, petroleum, chemical, paper, automotive, food, metallurgy and other industries beginning circulating water filtration;
3. Fist stage of circulating cooling water filtration;
4. The water reuse, waste water treatment filter;
5. Central air conditioning, boiler return early filter;
6. Municipal, green spraying, irrigation, agricultural irrigation, drip irrigation water filter early.

Models-Manual type

P-type backwash filter installation diagram

Model
Inlet&outlet
A
L
d
Flow rate
inch
mm
mm
mm
mm
T/H
FLQ-2P
2
50
410
340
25
19
FLQ-3P
3
80
500
400
25
50
FLQ-4P
4
100
580
470
40
80
FLQ-5P
5
125
640
530
40
125
FLQ-6P
6
150
730
610
50
180
FLQ-8P
8
200
900
750
50
320
FLQ-10P
10
250
1059
900
50
490
FLQ12P
12
300
1300
1100
65
710
FLQ-14P
14
350
1450
1250
65
970
FLQ-16P
16
400
1600
1350
65
1260
FLQ-18P
18
450
1800
1500
100
1590

Parameter

Single flow rate 20-1000m3/h(88-4400GPM)
The least working pressure ≤2.5bar
The pressure loss of cleaning ≤0.15bar
The highest temperature of working ≤150℃=302°F
The water consumption of self-cleaning one time 1%-2% of all water flow
Cleaning method
Using inlet water to backwash
Cleaning Time 30-90 seconds
Connect Method flange
Drain Diameter 25-100mm
Installation lamp Have
Chamber treated method Coslettizing
Working pressure 0.6 MPa,1.0 MPa,1.6 MPa,2.5 MPa
Filter precision 0.8-5mm(or customized)

Electric

Voltage 220V,50Hz
Power 100W
Control panel chamber material Carbon steel,304ss or 316L
Control type PLC

Equipment material

Chamber material Carbon steel,304SS or 316L
Strainer material 304SS or 316L
Strainer type Stainless steel complex strainer
Seal ring PTFE

Pressure Loss Table

Pipe diameter

Installation Diagram


Installation Precautions
1. The principle of selection:according to the pipe diameter, the premise of meeting the working pressure and flow, try to use a larger standard models.
2. backwash filter mounted on the front of various types of valve inlet pipe configuration. Install a shut-off valve in front of the filter,Install a drain valve at the bottom of the filter, horizontal mounting the equipment, pay attention to the direction of the arrow marked on the equipment, make sure it is consistent with the medium flow direction direction; if mounted vertically, should make the inlet up, the water flowing into the apparatus from top to bottom.
3. Install three days after the first wash, after wash once a month, according to the water quality after proper cleaning.
4.Installed in the negative zone.
5. filters and water treatment equipment for use, should be installed before the intake of water treatment equipment.
6. bypass can be installed in order to facilitate maintenance.


Inner Structure

Accessory

Manufacturing Process

Package and name plate

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Add: No.206 Qingyang North Road, Changzhou, Jiangsu province, ChinaTel: +86-519-85500155Fax: +86-519-85262955    
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