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Water Meter 50NB to 200NB
A removable mechanism type Woltman Water meter With magnetic drive and vacuum sealed register.
Features
- Leak proof and sealed totaliser
- Magnetic drive
- Repairable without interrupting water supply
- Removable mechanism ensures easy maintenance
- Totaliser protected by metallic cover
- Reliable sensitive metrology and low pressure loss.
- Remote reading facility/pulse output available on request.
Standards
Conforms to ISO 4064, Class-B
Application
Meter Suitable for use to measure the total flow of water passing through pipeline in waterworks, mining and industrial enterprises.
Metrological Data
| Size of meter |
|
Acc (%) |
50 mm |
80 mm |
100 mm |
150 mm
|
200 mm
|
|
Minimum flow Q min
|
m3/h
|
+5,-5
|
0.45
|
1.20
|
1.80
|
4.50
|
7.50
|
|
Transitional flow Qt
|
m3/h
|
+2,-2
|
3
|
8
|
12
|
30
|
50
|
|
Nominal flow Qn
|
m3/h
|
+2,-2
|
15
|
40
|
60
|
150
|
250
|
|
Maximum flow Q max
|
m3/h
|
+2,-2
|
30
|
80
|
120
|
300
|
500
|
|
Maximum Reading
|
m3
|
|
0.002
|
0.002
|
0.002
|
0.02
|
0.02
|
|
Minimum Reading
|
m3
|
|
999999
|
9999999
|
9999999
|
9999999
|
9999999
|
|
Temperature Suitability
|
oC
|
|
50oC
|
|
Working Pressure
|
Mpa
|
|
<=Mpa
|
Dimension
|
Size of meter
|
50 mm
|
80 mm
|
100 mm
|
150 mm
|
200 mm
|
|
Length (L) mm
|
200
|
225
|
250
|
300
|
350
|
|
Height (H) mm
|
260
|
280
|
290
|
320
|
364
|
|
Weight kg
|
10.6
|
15.4
|
18.6
|
31.6
|
46
|
Flange Details
|
Size of meter
|
50 mm
|
80 mm
|
100 mm
|
150 mm
|
200 mm
|
|
Bolt circle (oDI) mm
|
125
|
160
|
180
|
240
|
295
|
|
Dia of flange hole
|
19
|
19
|
19
|
23
|
23
|
|
Numbers of Bolts
|
4
|
8(4)
|
8
|
8
|
8(12)
|
|
FlanFlange outer dia (oD) mm
|
165
|
200
|
220
|
285
|
340
|
Installation
FILTERS: We strongly recommend the installation of a filter upstream of the meter to protect the mechanism.
FLOW STRAIGHTNER: If flow straightner is not provided a straight lenght of 14D & 10 D of the pipe dia must be provided on the upstream & the downstream side of the meter.
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