Installation
Proline Promass 83
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. 8:
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.
For this reason, the following installation locations are preferred:
• 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 FB
1 ½"
35
1.38
2
1/12"
1.5
0.06
50
2"
28
1.10
4
1/8"
3.0
0.12
50 FB
2"
54
2.00
8
3/8"
6
0.24
80
3"
50
2.00
15
1/2"
10
0.40
100
4"
65
2.60
15 FB
1/2"
15
0.60
150
6"
90
3.54
25
1"
14
0.55
250
10"
150
5.91
25 FB
1"
24
0.95
350
14"
210
8.27
40
1 ½"
22
0.87
FB = Full bore versions of Promass I
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