Reference Manual
00809-0100-4793, Rev CA
August 2004
Rosemount 8742C
3-12
INSTALLATION
(SANITARY FLOWTUBE)
Gaskets
The flowtube requires a gasket at each of its connections to adjacent devices
or piping. The gasket material selected must be compatible with the process
fluid and operating conditions. Gaskets are supplied with all Rosemount 8721
Sanitary flowtubes except when the process connection is an IDF sanitary
screw type.
Alignment and Bolting
Standard plant practices should be followed when installing a magmeter with
sanitary fittings. Unique torque values and bolting techniques are not
required.
Figure 3-12. Rosemount 8721
Sanitary Installation
GROUNDING
Process grounding the flowtube is one the most important details of flowtube
installation. Proper process grounding ensures that the transmitter amplifier is
referenced to the process. This creates the lowest noise environment for the
transmitter to make a stable reading. Use Table 3-6 to determine which
grounding option to follow for proper installation.
Table 3-5. Flange bolt Torque Specifications of Rosemount 8711 Flowtubes
Size Code
Line Size
Pound-feet
Newton-meter
15F
0.15 inch (4 mm)
5
6.8
30F
0.30 inch (8 mm)
5
6.8
005
1
/
2
-inch (15 mm)
5
6.8
010
1 inch (25 mm)
10
13.6
015
1
1
/
2
inch (40 mm)
15
20.5
020
2 inch (50 mm)
25
34.1
030
3 inch (80 mm)
40
54.6
040
4 inch (100 mm)
30
40.1
060
6 inch (150 mm)
50
68.2
080
8 inch (200 mm)
70
81.9
User supplied clamp
User supplied gasket
8721_A_06.E
P
S
If ordered manufacturer
supplied clamp and gasket.
Summary of Contents for 8700 Series
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