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Bypass Rotameter
Suitable to measure the Flow in above 50NB Line Size Design Standard ISO 5167 or BS/1042
Technical Specification
Accuracy : +/-2% of full flow
Rangeability : 7:1 or 5:1
Accessories
High & Low Flow alarms
Standard Material Of Construction
| Orifice Plate |
SS-316 or PVC |
| Carrier Rings |
SS-316 or Mild Steel or PP |
| Pipe Line |
SS-316 or Mild Steel |
| Wetted parts of the Rotameter |
SS-316 or Mild Steel or PP |
| STANDARD RANGES FOR WATER AT 20°C |
| Series |
NW |
Maximum |
FBPR-1
FBPR-2
FBPR-3
FBPR-4
FBPR-5
FBPR-6
FBPR-7
FBPR-8
FBPR-9
FBPR-10
|
50
80
100
125
150
200
225
250
275
300
|
20 M3/HR.
36 M3/HR.
80 M3/HR.
125 M³/HR.
150 M³/HR.
320 M³/HR.
450 M³/HR.
550 M³/HR.
650 M³/HR.
800 M³/HR |
| MINIMUM UPSTRAIGHT LENGTHS REQUIRED |
|
Fitting Before Straight Run
|
|
Diameter Ratio (B) |
| 0.2 |
0.25 |
0.3 |
0.35 |
0.4 |
0.45 |
0.5 |
0.55 |
0.6 |
0.65 |
0.7 |
0.75 |
|
Single 90° bend or Tee
|
|
10 |
10 |
10 |
12 |
14 |
14 |
14 |
16 |
18 |
22 |
28 |
36 |
|
Two or more 90° bends in the same plane
|
|
14 |
14 |
16 |
16 |
18 |
18 |
20 |
22 |
26 |
32 |
36 |
42 |
|
Two or more 90° bends in the same planes
|
|
34 |
34 |
34 |
36 |
36 |
38 |
40 |
44 |
48 |
54 |
62 |
70 |
|
Reducers or Expanders
|
|
16 |
16 |
16 |
16 |
16 |
18 |
20 |
20 |
22 |
24 |
26 |
28 |
|
Globe valve fully open
|
|
18 |
18 |
18 |
18 |
20 |
20 |
22 |
24 |
26 |
28 |
32 |
36 |
|
Gate valve fully open
|
|
12 |
12 |
12 |
12 |
12 |
12 |
12 |
14 |
16 |
16 |
20 |
24 |
|
MINIMUM DOWN STREAM STRAIGHT LENGTHS REQUIRED
|
4 |
4 |
5 |
5 |
6 |
6 |
6 |
6 |
7 |
7 |
7 |
8 |
|
VALUES OF THE STRAIGHT LENGTH ARE OF 'D' B=D/D D= ORIFICE DIAMETER D= INTERNAL DIAMETER OF PIPE
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