Proline Promag 50D
14
Hauser
Adapters
Suitable adapters to DIN EN 545 (double-flange reducers) can be used to install the sensor in larger-diameter
pipes. The resultant increase in the rate of flow improves measuring accuracy with very slow-moving fluids.
The nomogram shown here can be used to calculate the pressure loss caused by reducers and expanders.
!
Note!
The nomogram only applies to liquids of viscosity similar to water.
The pressure loss is calculated as follows:
1.
Calculate the diameter ratio: d/D
2.
Read off the pressure loss (as a function of flow velocity (downstream from the reduction)
and the d/D ratio from the nomogram)
a0010713
Pressure loss due to adapters
100
10
0.5
d / D
[mbar]
0.6
0.7
0.8
0.9
1 m/s
2 m/s
3 m/s
4 m/s
5 m/s
6 m/s
7 m/s
8 m/s
1
D
d
max. 8°
