Installation
Proline Promass 80
14
Hauser
Installation in a vertical pipe
The proposed configuration in the following diagram, however, permits installation in a vertical
pipeline. Pipe restrictors or the use of an orifice plate with a smaller cross-section than the nominal
diameter prevent the sensor from running empty during measurement.
a0003597
Fig. 6:
Installation in a vertical pipe (e.g. for batching applications)
1
Supply tank
2
Sensor
3
Orifice plate, pipe restrictions (see Table)
4
Valve
5
Batching tank
System pressure
It is important to ensure that cavitation does not occur, because it would influence the oscillation
of the measuring tube. No special measures need to be taken for fluids which have properties similar
to water under normal conditions.
In the case of liquids with a low boiling point (hydrocarbons, solvents, liquefied gases) or in suction
lines, it is important to ensure that pressure does not drop below the vapor pressure and that the
liquid does not start to boil. It is also important to ensure that the gases that occur naturally in many
liquids do not outgas. Such effects can be prevented when system pressure is sufficiently high.
Therefore, the following locations should be preferred for installation:
• Downstream from pumps (no danger of vacuum)
• At the lowest point in a vertical pipe
1
2
3
4
5
DN
Ø Orifice plate, pipe restrictor
DN
Ø Orifice plate, pipe restrictor
mm
inch
mm
inch
1
1/24"
0.8
0.03"
40
1 ½"
22
0.87"
2
1/12"
1.5
0.06"
40 FB
1 ½"
35
1.38"
4
1/8"
3.0
0.12"
50
2"
28
1.10"
8
3/8"
6
0.24"
50 FB
2"
54
2.00"
15
1/2"
10
0.40"
80
3"
50
2.00"
15 FB
1/2"
15
0.60"
100
4"
65
2.60"
25
1"
14
0.55"
150
6"
90
3.54"
25 FB
1"
24
0.95"
250
10"
150
5.91"
FB = Full bore versions of Promass I
