Backwash Hydraulic Valve

0.3
bar

Min Pressure

10
bar

Max Pressure

160
m³/h

Max Flow at Filtering

90
m³/h

Min Flow at Flushing

80
°C

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

1

Valve Body

Epoxy Coated Cast Iron

2

Diaphragm

NR Nylon Fabric reinforced

3

Shaft

ST-304

4

Slide

NR Nylon Fabric reinforced

5

O-rings

NBR

6

Diaphragm seat

Aluminum

7

Spring

ST-304

8

Pin

ST-304

9

Retaining ring

ST-304

10

Slide Plate

ST-316

11

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).

Aral Su All Rights Reserved.Designed and supported by : Academy Yahyavi.