Endress+Hauser Proline Promag 53H - Inlet;outlet runs and adapters

Proline Promag 50H, 53H
16 Endress+Hauser
Inlet and outlet run If possible, install the sensor well clear of assemblies such as valves, T-pieces, elbows etc.
Note the following inlet and outlet runs to comply with measuring accuracy specifications:
• Inlet run: ≥ 5 × DN
• Outlet run: ≥ 2 × DN
A0011905
Inlet and outlet run
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.
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.
A0011907
Pressure loss due to adapters
5xDN³
³ 2xDN
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°