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F-3200 Flow Meter Manual 04/13 - 0671-12 / 18325
Page 9
1.5 ADDITIONAL HARDWARE THAT MAY BE REQUIRED
1.5.1 Grounding Rings
Grounding rings may be required whenever meters are installed in non-metallic or lined
pipes. Grounding rings placed before and after the meter eliminates electrical noise that
will interfere with the proper operation of the meter. ONICON provides grounding rings
as an optional accessory. Grounding ring dimensional information and part numbers are
listed below. For proper operation, grounding rings are required before and after the meter.
Grounding Ring Dimensions & ONICON Part Numbers
Nominal
Size
Bore
A
C
D
T
316 SS Part
#
1”
1 - 1/16
2 - 5/8
4 - 9/16
1 - 15/16
1/8
15212
1.5”
1 – 9/16
3 – 3/8
5 - 5/16
1 - 15/16
1/8
15213
2”
2 – 1/16
4 – 1/8
6 - 1/16
1 - 15/16
1/8
15214
3”
3 – 1/16
5 – 3/8
7 - 5/16
1 - 15/16
1/8
15215
4”
4 – 1/16
6 – 7/8
8 - 13/16
1 - 15/16
1/8
15216
6”
6
8 – 3/4
10 - 11/16
1 - 15/16
1/8
15217
8”
8
11
12 - 15/16
1 - 15/16
1/8
15218
10”
9 – 1/2
13 – 3/8
15 - 5/8
2 - 1/4
1/8
15219
12”
11 – 9/16
16 – 1/8
18 - 9/16
2 - 7/16
1/8
15220
14”
13 – 1/2
17 – 3/4
20 - 3/8
2 - 5/8
1/8
15221
16”
15 – 1/4
20 – 1/4
22 - 7/8
2 - 5/8
1/8
15222
18”
17 – 3/8
21 – 5/8
24 - 1/4
2 - 5/8
1/8
15223
20”
19
23 - 7/8
26 - 11/16
2 - 13/16
1/8
15224
24”
23
28 – 1/4
31 - 1/8
2 - 7/8
1/8
15225
30”
29
34 – 3/4
38
3 - 1/2
1/8
15226
36”
35
41 – 1/4
45 - 1/4
4
1/8
15227
42”
41
48
52 - 1/2
4 - 1/2
1/8
15228
D
C
3/8
5/8
Bore
A
1/4
1/8”
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