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Instrument
Automatic Filters > VRF Model

VRF Model

Automatic Self Cleaning Filter - VRF Model

General Characteristics
The Body Material St-37 – AISI 316L
The Screen Material AISI 304L – CAGEPRGF
The Maximum Working Pressure 10 bar
The Minimum Output Pressure 1 bar
The Maximum Working Temperature 60o
The Back Washing Time Timing and Pressure Setup
Control System The Electronic Controlled Reduced Motor
Filtration Sensitivity 20 – 400 micron
The Paint Material Epoxi poliester
The filter body is St-37 or stainless-steel optionality
The filtering in pressured lines
High performance during the back washing
Extensive Filtering Surface
Easy-to assembly and fitler components, not required to change
100% back washing performance
Working opportunity, not required additional energy
The minimum head and water loss
Technical Specifications
Code
Input/Output
A
B
L1
L
D
Flow Rate 
Filt. Surface 
Weight
 
inch
dn
(mm)
(mm)
(mm)
(mm)
(inch)
(m3/h)
(cm2)
(kg)
VRF 102
2”
50
375
267
440
932
10”
40
1316
24
VRF1025
2 ½”
65
375
267
440
932
10”
50
1316
24
VRF103
3”
80
375
267
440
932
10”
55
1316
24
VRF103S
3”
80
425
267
540
1032
10”
70
1974
28
VRF 104
4”
100
425
267
540
1032
10”
100
1974
28
VRF 104S
4”
100
475
267
640
1132
10”
120
2632
32
VRF 105
5”
125
575
267
840
1332
10”
140
3948
36
VRF 106
6”
150
575
267
840
1332
10”
160
3948
41
Working Principle

Water, entered from input collector, passes to multistory screen filter inside the water (3). It is protected with a rough material with screen over of multiplex screen. The thin filter goes to output collector side (2). Particles, collected on multiplex screen, constitute a pollution layer over of the filter and a pressure difference in the outside collector. This pressure difference open a back flushing unit washing decharge valve (9) and a powerful back flushing flow consists from decharge pipet o atmosphere (10). This flow cleans the particle lavyer, collected on filter by creating a vacuum from holes over of nozzle (5).

The dirty water, absorbed on multiplex filter, creates a volution by passing from water cleaning nozzle pipe (6) and hydraulic turbine (7). The pressure loss, consisted of turbine container (4) and plunger dreinage (9) constitutes an axial movement. The spiral headway, constituted by this axial and volution together, obtains the absorbing whole filter surface by vacuum nozzles.

When this process is done, the cleaning collector makes a second back flushing with warns with its warning switches and turns its first position. Transaction is completed.

During the back washing, the filtration process contiunes and after the backwashing process, the filter stands by until next pressure difference signal.

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