Flowmeter Primary Installation - ABB COPA-XE Instruction Bulletin

2.2.1 Flowmeter Primary Installation

The electromagnetic flowmeter can be installed at any arbitrary
location in the pipeline as long as the installation requirements
(see 2.2) are satisfied.
When selecting the installation site, consideration should be
given to assure that moisture cannot enter into the electrical
connection or converter areas. Make certain to carefully seat
the gaskets and secure the covers after installation and start-up
have been completed.
Note:
Graphite should not be used to lubricate the flange
or process connection gaskets because under certain
circumstances an electrically conductive coating may
form on the inside surface of the meter tube affecting
operation. Vacuum shocks in the pipeline should be
avoided to prevent damage to the liner (PTFE Liners).
Gasket Surfaces on the Mating Flanges
In every installation parallel mating flange surfaces should be
provided and gaskets made from materials suitable for the fluid
and the temperature should be installed. Only then can leaks be
avoided. The flange gaskets for the flowmeter primary must be
installed concentrically to achieve optimum measurement re-
sults.
Protection Plates
The protection plates are installed to prevent damage to the
flowmeter primary liner during transport. Remove the protection
plates only when ready to install the meter in the pipeline. Be
careful not to cut or otherwise damage the liner in order to
prevent leakage.
Torque Specifications for Flanges
The mounting bolts are to be tightened equally in the usual
manner without excessive one-sided tightening. We recom-
mend that the bolts be greased prior to tightening and that they
be tightened in a criss-cross pattern as shown in Fig. 10.
Tighten the bolts during the first pass to approx. 50 %, during
the second pass to approx. 80 % and only during the third pass
to 100 % of the max. torque value. The max. torque values
should not be exceeded, see the following tables.
Fig. 10
Electromagnetic Flowmeter
Torque Specifications for Flanged Meters
Liner Meter Size
inch DN Connection
PTFE/ 1/8-1/4 3-10 Flanged
Hard rubber 1/2 15
(≥ 1/2" 3/4 20
[DN 15]) 1 25
1-1/4 32
ETFE 1-1/2 40
(≥ 1" 2 50
[DN 25]) 2-1/2 65
3 80
PFA 4 100 Flanged,
≤ 10"
5 125 Wafer
[DN 250] 6 150 Design
PTFE/ 8 200 (≤ 4"
Hard rubber 10 250 [DN 100])
ETFE 12 300
≤ 12"
14 350
[DN 300] 16 400
PTFE 20 500 Flanged
≤ 32"
24 600
[DN 800] 28 700
Hard rubber 32 800
36 900
40 1000
Table 1
Torque Specifications for Wafer Design Flowmeters
Liner Meter Size Process
inch mm Connection
PFA 1/8-1/4 3 - 6 Threaded
flanges
Wafer Design
3/8 10
1/2 15
3/4 20
1 25
Threaded
PFA/ 1-1/4 32
flanges
PTFE 1-1/2 40
Wafer Design
2 50
2-1/2 65
3 80
4 100
Table 2
COPA-XE / MAG-XE
Process Bolts Torque
max. Nm
4 x M12
4 x M12 10
4 x M12 16
4 x M12 21
4 x M16 34
4 x M16 43
4 x M16 56
8 x M16 39
8 x M16 49
8 x M16 47
8 x M16 62
8 x M20 83
12 x M20 81
12 x M24 120
12 x M24 160
16 x M24 185
16 x M27 250
20 x M24 200
20 x M27 260
24 x M27 300
24 x M30 390
28 x M30 385
28 x M33 480
Bolts Torque
max. Nm
4 x M12 2.3
4 x M12 7.0
4 x M12 7.0
4 x M12 11.0
4 x M12 15.0
4 x M16 26.0
4 x M16 33.0
4 x M16 46.0
8 x M16 30.0
8 x M16 40.0
8 x M20 67.0
PN
bar
8 40
40
40
40
40
40
40
40
40
16
16
16
16
16
16
16
16
10
10
10
10
10
10
PN
bar
40
40
40
40
40
40
40
40
40
40
40
5