Reference Manual
00809-0100-4727, Rev EA
October 2010
Rosemount 8700 Series
2-10
INSTALLATION
(WAFER SENSOR)
The following section should be used as a guide in the installation of the
Rosemount 8711 Sensor. Refer to page 2-7 for installation of the flange-type
Rosemount 8705 and 8707 High-Signal sensor.
Gaskets
The sensor 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.
Metallic or spiral-wound gaskets can
damage the liner.
If the gaskets will be removed frequently, protect the
liner ends. If grounding rings are used, a gasket is required on each side of
the grounding ring.
Alignment and Bolting
1.
On 1
1
/
2
- through 8-in. (40 through 200 mm) line sizes, place centering
rings over each end of the sensor. The smaller line sizes, 0.15-
through 1-in. (4 through 25 mm), do not require centering rings.
2.
Insert studs for the bottom side of the sensor between the pipe
flanges. Stud specifications are listed in Table 2-4.
Using carbon
steel bolts on smaller line sizes, 0.15- through 1-in.
(4 through 25 mm), rather than the required stainless steel bolts,
will degrade performance.
Table 2-3. Flange Bolt Torque and Bolt Load Specifications for Rosemount 8705
Size
Code
Line Size
Polyurethane Liner
PN 10
PN 16
PN 25
PN 40
(Newton-meter) (Newton) (Newton-meter) (Newton) (Newton-meter) (Newton) (Newton-meter) (Newton)
005
1
/
2
-in. (15 mm)
1
521
1
826
2
1293
6
3333
010
1-in. (25 mm)
2
1191
3
1890
5
2958
10
5555
015
1
1
/
2
-in. (40 mm)
5
1960
7
3109
12
4867
20
8332
020
2-in. (50 mm)
6
2535
10
4021
15
6294
26
10831
030
3-in. (80 mm)
5
2246
9
3563
13
5577
24
19998
040
4-in. (100 mm)
7
3033
12
4812
23
7531
35
11665
060
6-in. (150mm)
16
5311
25
8425
47
13186
75
20829
080
8-in. (200 mm)
27
8971
28
9487
53
14849
100
24687
100
10-in. (250 mm)
26
8637
49
13700
87
21443
155
34547
120
12-in. (300 mm)
36
12117
69
19220
91
22563
165
36660
140
14-in. (350 mm)
35
11693
67
18547
131
29030
235
47466
160
16-in. (400 mm)
55
15393
99
24417
189
38218
335
62026
200
20-in. (500 mm)
58
15989
114
25361
197
39696
375
64091
240
24-in. (600 mm)
92
22699
178
36006
304
56357
615
91094
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Industry Automation
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