Endress+Hauser Proline Promag W 800 - Page 23

Proline Promag W 800 Mounting procedure
Endress+Hauser 23
A0042317
Installation near valves
Install the device in the direction of flow upstream from the valve.
A0041091
Installation upstream from a down pipe
NOTICE
Negative pressure in the measuring pipe can damage the liner!
‣
If installing upstream of down pipes whose length h ≥ 5 m (16.4 ft): install a siphon
with a vent valve downstream of the device.
This arrangement prevents the flow of liquid stopping in the pipe and air
entrainment.
h
2
1
A0028981
1 Vent valve
2 Pipe siphon
h Length of down pipe
Installation with partially filled pipes
• Partially filled pipes with a gradient require a drain-type configuration.
• The installation of a cleaning valve is recommended.