Flow - Switch

Flow-Switch
From 25nb To 150nb
 
For 15nb To 25nb
Operating Principle
Acrylic Rotameter is basically a variable area flow meter. The diffrential pressure across the annulus area is constant and the Flowrate is measured as a function of the position of annulus area. This area is displayed as the position of the ‘Float’ in terms of flow rate on the scale.
 
Specifications
  Line size 25NB to 150NB
  Range 25 to 470 LPM
  Connection 1" BSPM / 1.5" - 2" flanged / pad
  Test Pressure 150 psig / 10 kg / cm2
  Max temp 100-170 deg. cen
  Pr. Loss 60-80 mmwc
  Mounting horizontal / vertical
  Switching snap action SPDT micro switch-15A-230VAC
  Dead zone 5-10 % of Max flow
  Enclosure Metallic - Powder Coated
  Elec. Conn M 16 pvc Cable Gland
 
Material of Construction
Flow Switch
Model Flow Switch TN.TH
Threaded Mounting
TN.FL
Flanged Mounting
TN.PD
Pad Mounting
Part Name
Body
Brass

SS316
Brass
Bellow
Ph. Bronze
SS316
Paddle
SS316
Range Spring
SS304
Cover
METAL - Powder Coated
Gasket
NITRILE

 
Switch Acutation Chart
Switch action Units Pipe Size NB
25 32 40 50 65 80 100 125 150

Low Flow
Adjustment
( Factory Set )

Flow Rising
LPS
0.42
0.53
0.83
1.17
1.50
1.83
2.50
3.67
5
LPM
25
32
50
70
90
110
150
220
300
LPH
1500
1920
3000
4200
5400
6600
9000
13200
18000
GPM
6.60
8.45
13.21
18.49
23.68
29.06
39.63
58.12
79.26
Flow Falling
LPS
0.25
0.33
0.50
0.66
0.83
0.83
1.33
1.83
2.50
LPM
15
20
30
40
50
50
80
110
150
LPH
900
1200
1800
2400
3000
3000
4800
6600
9000
GPM
3.96
5.28
7.93
10.57
13.21
13.21
21.14
29.06
39.63

High Flow
Adjustment

Flow Rising
LPS
0.66
1.08
1.58
2.00
2.67
3.33
4.67
7.17
10.50
LPM
40
65
95
120
160
200
280
430
630
LPH
2400
3900
5700
7200
9600
12000
16800
25800
37800
GPM
10.57
17.17
25.10
31.70
42.27
52.84
73.98
113.60
166.45
Flow Falling
LPS
0.58
0.92
1.33
1.50
2.33
3.00
4.00
5.83
7.83
LPM
35
55
80
90
140
180
240
350
470
LPH
2100
3300
4800
5400
8400
10800
14000
21000
28200
GPM
9.25
14.53
21.14
23.68
36.99
47.56
63.41
92.47
124.17
 
 
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