Page 7 - FlexitallicCatalog2010
SEO Version
8
STYLE CG & CGI* TO ASME B16.20
TO SUIT ASME B16.5 FLANGES
In accordance with ASME B16.20, Inner Rings are mandatory for the following flange designations (see Toble 3).
Class 900 - NPS 24 to 48
Class 1500 - NPS 12 to NPS 24
Class 2500 - NPS 4 to NPS 12
ASME B16.20 does not include dimensions for NPS
1
/
4
, 3
1
/
2
or 4
1
/
2
, or Class 400 Flanges up to NPS 3 and Class 900 Flanges up to NPS 2
1
/
2
.
DIMENSIONS IN INCHES.
*For Style CGI - see Table 3 for Inner Ring dimensions
TABLE
1
OUTSIDE DIAMETER
OF SEALING ELEMENT
INNER DIAMETER OF SEALING ELEMENT
OUTER DIAMETER OF CENTERING RING
NOM
PIPE
SIZE
1
/
4
7
/
8
-
1
/
2
1
/
2
1
/
2
1
/
2
– –
– 1
3
/
4
1
3
/
4
1
3
/
4
1
3
/
4
–
–
–
1
/
2
1
1
/
4
1
1
/
4
3
/
4
3
/
4
3
/
4
3
/
4
3
/
4
3
/
4
3
/
4
1
7
/
8
2
1
/
8
2
1
/
8
2
1
/
8
2
1
/
2
2
1
/
2
2
3
/
4
3
/
4
1
9
/
16
1
9
/
16
1 1 1 1 1 1 1 2
1
/
4
2
5
/
8
2
5
/
8
2
5
/
8
2
3
/
4
2
3
/
4
3
1 1
7
/
8
1
7
/
8
1
1
/
4
1
1
/
4
1
1
/
4
1
1
/
4
1
1
/
4
1
1
/
4
1
1
/
4
2
5
/
8
2
7
/
8
2
7
/
8
2
7
/
8
3
1
/
8
3
1
/
8
3
3
/
8
1
1
/
4
2
3
/
8
2
3
/
8
1
7
/
8
1
7
/
8
1
7
/
8
1
7
/
8
1
9
/
16
1
9
/
16
l
9
/
16
3 3
1
/
4
3
1
/
4
3
1
/
4
3
1
/
2
3
1
/
2
4
1
/
8
1
1
/
2
2
3
/
4
2
3
/
4
2
1
/
8
2
1
/
8
2
1
/
8
2
1
/
8
1
7
/
8
1
7
/
8
1
7
/
8
3
3
/
8
3
3
/
4
3
3
/
4
3
3
/
4
3
7
/
8
3
7
/
8
4
5
/
8
2 3
3
/
8
3
3
/
8
2
3
/
4
2
3
/
4
2
3
/
4
2
3
/
4
2
5
/
16
2
5
/
16
2
5
/
16
4
1
/
8
4
3
/
8
4
3
/
8
4
3
/
8
5
5
/
8
5
5
/
8
5
3
/
4
2
1
/
2
3
7
/
8
3
7
/
8
3
1
/
4
3
1
/
4
3
1
/
4
3
1
/
4
2
3
/
4
2
3
/
4
2
3
/
4
4
7
/
8
5
1
/
8
5
1
/
8
5
1
/
8
6
1
/
2
6
1
/
2
6
5
/
8
3 4
3
/
4
4
3
/
4
4 4 4 4 3
3
/
4
3
5
/
8
3
5
/
8
5
3
/
8
5
7
/
8
5
7
/
8
5
7
/
8
6
5
/
8
6
7
/
8
7
3
/
4
3
1
/
2
5
1
/
4
5
1
/
4
4
1
/
2
4
1
/
2
4
1
/
8
4
1
/
8
4
1
/
8
4
1
/
8
– 6
3
/
8
6
1
/
2
6
3
/
8
6
3
/
8
7
1
/
2
7
3
/
8
-
4 5
7
/
8
5
7
/
8
5 5 4
3
/
4
4
3
/
4
4
3
/
4
4
5
/
8
4
5
/
8
6
7
/
8
7
1
/
8
7 7
5
/
8
8
1
/
8
8
1
/
4
9
1
/
4
4
1
/
2
6
1
/
2
6
1
/
2
5
1
/
2
5
1
/
2
5
5
/
16
5
5
/
16
5
5
/
16
5
5
/
16
–
7 7
3
/
4
7
5
/
8
8
1
/
4
9
3
/
8
9
1
/
8
-
5 7 7 6
1
/
8
6
1
/
8
5
13
/
16
5
13
/
16
5
13
/
16
5
5
/
8
5
5
/
8
7
3
/
4
8
1
/
2
8
3
/
8
9
1
/
2
9
3
/
4
10 11
6 8
1
/
4
8
1
/
4
7
3
/
16
7
3
/
16
6
7
/
8
6
7
/
8
6
7
/
8
6
3
/
4
6
3
/
4
8
3
/
4
9
7
/
8
9
3
/
4
10
1
/
2
11
3
/
8
11
1
/
8
12
1
/
2
8 10
3
/
8
10
1
/
8
9
3
/
16
9
3
/
16
8
7
/
8
8
7
/
8
8
3
/
4
8
1
/
2
8
1
/
2
11 12
1
/
8
12 12
5
/
8
14
1
/
8
13
7
/
8
15
1
/
4
10 12
1
/
2
12
1
/
4
11
5
/
16
11
5
/
16
10
13
/
16
10
13
/
16
10
7
/
8
10
1
/
2
10
5
/
8
13
3
/
8
14
1
/
4
l4
1
/
8
15
3
/
4
17
1
/
8
17
1
/
8
18
3
/
4
12 14
3
/
4
14
1
/
2
13
3
/
8
13
3
/
8
12
7
/
8
12
7
/
8
12
3
/
4
12
3
/
4
12
1
/
2
16
1
/
8
16
5
/
8
16
1
/
2
18 19
5
/
8
20
1
/
2
21
5
/
8
14 16 15
3
/
4
14
5
/
8
14
5
/
8
14
1
/
4
l4
1
/
4
14 14
1
/
4
– 17
3
/
4
19
1
/
8
19 19
3
/
8
20
1
/
2
22
3
/
4
–
16 18
1
/
4
18 16
5
/
8
16
5
/
8
l6
1
/
4
16
1
/
4
16
1
/
4
16 – 20
1
/
4
21
1
/
4
21
1
/
8
22
1
/
4
22
5
/
8
25
1
/
4
–
18 20
3
/
4
20
1
/
2
18
11
/
16
18
11
/
16
18
1
/
2
18'
1
/
2
18
1
/
4
18
1
/
4
– 21
5
/
8
23
1
/
2
23
3
/
8
24
1
/
8
25
1
/
8
27
3
/
4
–
20 22
3
/
4
22
1
/
2
20
11
/
16
20
11
/
16
20
1
/
2
20
1
/
2
20
1
/
2
20
1
/
4
– 23
7
/
8
25
3
/
4
25
1
/
2
26
7
/
8
27
1
/
2
29
3
/
4
–
24 27 26
3
/
4
24
3
/
4
24
3
/
4
24
3
/
4
24
3
/
4
24
3
/
4
24
1
/
4
– 28
1
/
4
30
1
/
2
3O
1
/
4
31
1
/
8
33 35
1
/
2
–
CLASS CLASS CLASS CLASS
CLASS
CLASS
CLASS CLASS CLASS CLASS
CLASS CLASS CLASS
CLASS CLASS CLASS
150, 300 900, 1500
150
300
400
600
900
1500
2500
150
300
400
600
900
1500
2500
400, 600 2500
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