Planning and
Installation
Installation Site
The Prowirl measuring system can
basically be mounted in any position,
although for extremes of process
temperatures, the following orientations
are recommended:
High process temperatures (e.g. steam):
•
Horizontal pipeline: install according
to C or D
•
Vertical pipeline: install according to A
Low process temperatures
(e.g. cryogenics):
•
Horizontal pipeline: install according
to B or D
•
Vertical pipeline: install according to A
Pressure and temperature transmitters
are to be positioned downstream of the
meter, so that optimum vortex shedding
is not affected (see adjacent figure).
Note!
•
For liquid measurement, ensure the
pipeline is always full. Therefore, flow
should be upward in vertical pipelines.
•
Install a gas separator if gas bubbles
are expected.
•
Free-standing pipes subject to strong
vibration (>1g) should be supported
upstream and downstream of the
meter.
•
Keep within the maximum specified
ambient and process temperatures
(see page 22).
Pipeline Insulation
Pipeline insulation is necessary to pre-
vent energy loss in hot and cryogenic
processes. When insulating Prowirl,
ensure sufficient pipe stand surface
area is exposed (see adjacent figure).
The exposed area serves as a radiator
and protects the electronics from
extreme heat or cooling. This applies
to both compact and remote versions.
Mounting Set
Accurate centering of wafer-style
meters, essential for specified accuracy,
is achieved with the use of a mounting
set which consists of:
1 Bolts
2 Washers
3 Nuts
4 Centering rings
5 Gaskets
B
C
A
ti031y07
D
Orientation and process
temperature
P
T
ti031y08
Pressure and temperature
transmitter location
Wafer version Flanged version
ti031y09
Pipeline insulation
4
5
1
2
3
ti031y10
Mounting set for wafer
version (Prowirl W)
6
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