Installation
Dosimag
20
Hauser
accuracy with very slow-moving fluids. The nomogram shown here can be used to
calculate the pressure loss caused by reducers and expanders.
The nomogram only applies to liquids with a viscosity similar to that of water.
1. Calculate the ratio of the diameters d/D.
2. From the nomogram read off the pressure loss as a function of flow velocity
(downstream from the reduction) and the d/D ratio.
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°
A0016359
6.1.3
Special mounting instructions
Information for filling systems
Correct measurement is possible only if the piping is completely filled. We therefore
recommend that some test batches be carried out prior to production batching.
Circular filling system
4
3
1
2
A0003761
1
Measuring device
2
Tank
3
Batching valve
4
Vessel
