Volumetric water meters measure the actual volume of fluid passing through the meter. It can only be turned in a fixed direction, with the fluid moving through the meter to the other side at a certain angle each time it is turned. This is why volumetric water meters are more accurate than velocity meters. Velocity meters have a ±2% error depending on the speed of the fluid passing through them, whereas volumetric meters can be controlled to ±0.5% or less.
Volumetric Water Meters Parameters
Type: pure water meter;
Structure form: volumetric water meter
Accuracy: Class C
Nominal pressure: 1.6 (MPa)
Working temperature: 50℃
Maximum size: 99,999
Minimum reading: 0.01.
Performance Characteristics of Volumetric Water Meters
Measurement level: The volumetric water meter has a high measurement level and can generally reach Class C or Class D.
Pressure loss: The pressure loss of volumetric water meters under overload flow does not exceed 0.1MPa.
Pressure strength: volumetric water meters can withstand pressure tests of water pressure 1.6MPa for 15min continuously and water pressure 2.0MPa for 1min continuously.
Translated with www.DeepL.com/Translator (free version)
|
Description |
Unit |
Hydraulic Data And Dimensions |
|||||
|
Nominal Size |
mm(inch) |
DN15(1/2) |
DN20(3/4) |
DN(1) |
DN32(1-1/4) |
DN40(1-1/2) |
|
|
Q4 Error Limit ±2% |
m³/h |
3.125 |
5 |
7.875 |
12.5 |
20 |
|
|
Q3 Error Limit ±2% |
m³/h |
2.5 |
4.0 |
6.3 |
10 |
16 |
|
|
Q2 Error Limit ±2% |
l/h |
25 |
40 |
63 |
100 |
160 |
|
|
Q1 Error Limit ±5% |
l/h |
15.6 |
25 |
39.4 |
62.5 |
100 |
|
|
Min.Reading |
l |
0.05 |
0.05 |
0.05 |
0.5 |
0.5 |
|
|
Max.Reading |
m³ |
9999.9999 |
9999.9999 |
9999.9999 |
99999.999 |
99999.999 |
|
|
Press Loss ΔP AT |
MPa |
≤0.063 |
≤0.063 |
≤0.063 |
≤0.063 |
≤0.063 |
|
|
L |
mm |
115 |
165 |
199 |
260 |
300 |
|
|
B |
mm |
43 |
43 |
53 |
60 |
77 |
|
|
weight
|
Without Connections |
Kg |
1.14 |
1.56 |
2.48 |
3.47 |
5.65 |
|
With Connections |
Kg |
0.97 |
1.3 |
2.05 |
2.75 |
4.7 |
|
Working Principle
The water enters the meter from the inlet of the meter body and impacts the vane wheel at the tip of the vane blades to make it rotate. The water flows out from the outlet of the body. The rotation of the vane wheel (proportional to the velocity of water flow) is transmitted directly to the central gear in the vacuum-sealed register by magnetic coupling. The sealed register totalizes and indicates the water volume passing through the meter.
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