Proline Promag W 800
20 Endress+Hauser
Installation
No special measures such as supports are necessary.
External forces are absorbed by the construction of the device.
Mounting location Preferably install the sensor in an ascending pipe,
and ensure a sufficient distance (2 × DN) to the next pipe elbow.
A0017061
Selecting the mounting location
To prevent measuring errors from gas bubbles accumulating in the measuring tube, avoid the following
mounting locations in the pipe:
• Highest point of a pipeline
• Directly upstream of a free pipe outlet in a down pipe
Installation in down pipes
Install a siphon or a vent valve downstream of the sensor in down pipes whose length h 5 m (16.4 ft). This
precaution is to avoid low pressure and the consequent risk of damage to the lining of the measuring tube. This
measure also prevents the system losing prime, which could cause air pockets.
Information on the lining's resistance to partial vacuum can be found in the "Pressure tightness" section
( ä 28)
A0017064
Installation in a down pipe
1 Vent valve
2Pipe siphon
h Length of down pipe, h 5 m (16.4 ft)
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