Page 14 - FlexitallicCatalog2010

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15
STYLE CG & CGI TO ASME B16.20
TO SUIT LARGE DIAMETER ASME B16.47 SERIES A FLANGES
CLASS 400-600-900
TABLE
7.1
NOTE:
There are no class 900 flanges NPS 50 and larger.
*lnner rings are mandatory for class 900 flanges, NPS 26 to 48.
For ASME B16.47 Series A flanges NPS 12 to 24 use gasket dimensions listed on page 10, for ASME B 16.5 flanges.
The above style CG gasket dimensions are also suitable for NPS 26 to 36 class 400 and 600 BS 3293 flanges.
DIMENSIONS IN INCHES.
CLASS 400
Inner
Sealing Element
Centering
Nom.
Ring
Ring
Pipe
Inside
Inside Outside Outside
Size
Dia.
Dia.
Dia.
Dia.
22 – 22
3
/
4
24
3
/
4
27
5
/
8
26 26 27 29 32
3
/
4
28 28 29 31 35
1
/
8
30 29
3
/
4
31
1
/
4
33
1
/
4
37
1
/
4
32 32 33
1
/
2
35
1
/
2
39
1
/
2
34 34 35
1
/
2
37
1
/
2
41
1
/
2
36 36
1
/
8
37
5
/
8
39
5
/
8
44
38 37
1
/
2
38
1
/
4
40
1
/
4
42
1
/
4
40 39
3
/
8
40
3
/
8
42
3
/
8
44
3
/
8
42 41
3
/
8
42
3
/
8
44
3
/
8
46
3
/
8
44 43
1
/
2
44
1
/
2
46
1
/
2
48
1
/
2
46 46 47 49 50
3
/
4
48 47
1
/
2
49 51 53
50 49
1
/
2
51 53 55
1
/
4
52 51
1
/
2
53 55 57
1
/
4
54 53
1
/
4
55
1
/
4
57
1
/
4
59
3
/
4
56 55
1
/
4
57
1
/
4
59
1
/
4
61
3
/
4
58 57
1
/
4
59
1
/
4
61
1
/
4
63
3
/
4
60 59
3
/
4
61
3
/
4
63
3
/
4
66
1
/
4
CLASS 600
Inner
Sealing Element
Centering
Nom.
Ring
Ring
Pipe
Inside
Inside Outside Outside
Size
Dia.
Dia.
Dia.
Dia.
22 – 22
3
/
4
24
3
/
4
28
7
/
8
26 25
1
/
2
27 29 34
1
/
8
28 27
1
/
2
29 31 36
30 29
3
/
4
31
1
/
4
33
1
/
4
38
1
/
4
32 32 33
1
/
2
35
1
/
2
40
1
/
4
34 34 35
1
/
2
37
1
/
2
42
1
/
4
36 36
1
/
8
37
5
/
8
39
5
/
8
44
1
/
2
38 37
1
/
2
39 41 43
1
/
2
40 39
3
/
4
41
1
/
4
43
1
/
4
45
1
/
2
42 42 43
1
/
2
45
1
/
2
48
44 43
3
/
4
45
3
/
4
47
3
/
4
50
46 45
3
/
4
47
3
/
4
49
3
/
4
52
1
/
4
48 48 50 52 54
3
/
4
50 50 52 54 57
52 52 54 56 59
54 54
1
/
4
56
1
/
4
58
1
/
4
61
1
/
4
56 56
1
/
4
58
1
/
4
60
1
/
4
63
1
/
2
58 58 60
1
/
2
62
1
/
2
65
1
/
2
60 60
1
/
4
62
3
/
4
64
3
/
4
68
1
/
4
CLASS 900*
Inner
Sealing Element
Centering
Nom.
Ring
Ring
Pipe
Inside
Inside Outside Outside
Size
Dia.
Dia.
Dia.
Dia.
22 –
–
–
–
26 26 27 29 34
3
/
4
28 28 29 31 37
1
/
4
30 30
1
/
4
31
1
/
4
33
1
/
4
39
3
/
4
32 32 33
1
/
2
35
1
/
2
42
1
/
4
34 34 35
1
/
2
37
1
/
2
44
3
/
4
36 36
1
/
4
37
3
/
4
39
3
/
4
47
1
/
4
38 39
3
/
4
40
3
/
4
42
3
/
4
47
1
/
4
40 41
3
/
4
43
1
/
4
45
1
/
4
49
1
/
4
42 43
3
/
4
45
1
/
4
47
1
/
4
51
1
/
4
44 45
1
/
2
47
1
/
2
49
1
/
2
53
7
/
8
46 48 50 52 56
1
/
2
48 50 52 54 58
1
/
2
50 –
–
–
–
52 –
–
–
–
54 –
–
–
56 –
–
–
–
58 –
–
–
–
60 –
–
–
–