Min Pressure
Max Pressure
Max Flow at Filtering
Min Flow at Flushing
Max Temperature
Backwash Hydraulic Valve
The Aral Su Backwash Hydraulic Valve is a compact 3-port valve, in a T configuration. It is hydraulically operated and diaphragm actuated valve. The valve is designed for backwashing of filtration systems like sand filter, disc filter and screen filter, where the filter supply port is vertical to the supply manifold. This valve has a high stress resistance cast iron body.
- Body: Cast Iron (GG 25)
- Less water waste in backwash operation
- Improved sealing and performance
- Maximum working pressure: 10 Bar
- Maximum temperature: 80°c
- Polyester coated (UV protected)
Backwash Hydraulic Valve
Model bv
Connection
End
Flush
type
(inch)
filtration
Max.flow at filtering
Max.flow at flushing
(m³/h)
Dimension
A
B
C
H
L
(inch)
BV-AKSU2*2
2*2
1.5
V*VBSPT
40
25
2
2
1.5
7.7
7.7
BV-AKSU3*3
3*3
2
V*VBSPT
80
40
3
3
2
10.7
10.7
BV-AKSU4*4
4*4
3
V*VBSPT
160
90
4
4
3
13.7
13.7
Connection
(inch)
End
Flush
type
Model bv
2*2
1.5
V*VBSPT
BV-AKSU2*2
3*3
2
V*VBSPT
BV-AKSU3*3
4*4
3
V*VBSPT
BV-AKSU4*4
Dimension
(inch)
L
H
C
B
A
7.7
7.7
1.5
2
2
10.7
10.7
2
3
3
13.7
13.7
3
4
4
filtration
(m³/h)
Max.flow at filtering
Max.flow at flushing
40
25
80
40
160
90
Part number
Part name
Part material
Valve Body
Epoxy Coated Cast Iron
Diaphragm
NR Nylon Fabric reinforced
Shaft
ST-304
Slide
NR Nylon Fabric reinforced
O-rings
NBR
Diaphragm seat
Aluminum
Spring
ST-304
Pin
ST-304
Retaining ring
ST-304
Slide Plate
ST-316
External Bolts and Washers
ST-304
How it works?
Backwash hydraulic valve is a compact 3-port valve in a T configuration. It is, hydraulically operated, and diaphragm actuated. Backwash hydraulic valve is designed for backwashing of filtration systems.
The valve can be set in one of two positions: 1. Filtration mode allows flow from the inlet [1] manifold into the filter [2]. Water forces the large rubber diaphragm [3], requiring minimal activation pressure, to move up. 2. Flushing mode closes the filter inlet and opens the flush outlet [2], resulting in flow reversal in the filter. The upper control chamber [4] causes the high pressure, together with the spring [5] force, to move the diaphragm back and closes the inlet manifold. The valve can be operated automatically (using solenoid valve activation) or manually (Using 3-way valve).
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