Proline Promag 50H, 53H
16 Endress+Hauser
Partially filled pipes
Partially filled pipes with gradients necessitate a drain-type configuration.
The empty pipe detection function (EPD) provides additional security in detecting empty or partially
filled pipes.
!
Note!
Risk of solids accumulating. Do not install the sensor at the lowest point in the drain. It is advisable to
install a cleaning valve.
A0011901
Installation with partially filled pipes
Down pipes
Install a siphon or a vent valve downstream of the sensor in down pipes 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 liquid current stopping in the pipe which could cause air locks.
Information on the pressure tightness of the measuring tube lining 28, "Pressure tightness"
section.
A0011902
Installation measures for vertical pipes
1Vent valve
2Pipe siphon
h Length of the down pipe
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