Proline Promag 50H, 53H
14 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.
"
Caution!
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 → ä 19, Section "Pressure tightness".
A0011902
Installation measures for vertical pipes
1 Vent valve
2Pipe siphon
h Length of the down pipe
³ 5xDN
³ 2xDN
h
2
1
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