Flow Switch
Description:
Used to sense the change of flow that passes the pipe line, playing a role to protect the torrential flow
Can be regulated based on different flow
Employs a SPDT miniature switch with large capacity, possessing the advantages of quick action to guarantee the transient of the switch
The outer covering of switch applies the totally enclosed construction, while the inside parts used the corrosion-proof stainless steel materials ensuring switch’s normal work under any circumstance
Max. working pressure: 13.5 bar
Liquid temperature: 0ºC - +120ºC
Model and Functions:
|
Model |
Connection |
Construction |
|
DH-S20 |
1” – 1-1/2 NPT |
Hermetically sealed plastic shell |
|
DH-S25 |
3/4” – 14 NPT |
Electrical Data of the Micro Switch
|
Voltage
Current |
AC 110V |
AC 220V |
|
Non-inductive Current |
15 |
15 |
|
Full Load Current |
24 |
24 |
|
Starting Current |
144 |
144 |
Flow Rate Table
|
Required to Actuate Switch m3/h |
|
Pipe Size (inch) |
1 |
1-1/4 |
1-1/2 |
2 |
2-1/2 |
3 |
4 |
5 |
6 |
8 |
|
Regulating Range |
Min. Flow |
Flow Increase (Red, Blue closed) |
1.0 |
1.3 |
1.7 |
3.1 |
4.1 |
6.2 |
8.4 |
12.9 |
16.8 |
46.6 |
|
Flow Increase (Red, Yellow closed) |
0.6 |
0.8 |
1.1 |
2.2 |
2.8 |
4.3 |
6.1 |
9.3 |
12.3 |
38.6 |
|
Max. Flow |
Flow Increase (Red, Blue closed) |
2.0 |
3.0 |
4.4 |
6.6 |
7.8 |
12.0 |
18.4 |
26.8 |
32.7 |
94.2 |
|
Flow Increase (Red, Yellow closed) |
1.9 |
2.8 |
4.1 |
6.1 |
7.3 |
11.4 |
17.3 |
25.2 |
30.7 |
90.8 |
|
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