Ring Gaskets for 300 lb ASME/ANSI Pipe Flanges Old Style

Ring Gaskets for 300 lb ASME/ANSI Pipe Flanges (OLD STYLE)

This chart shows the difference between the new ring gaskets standard and the old ring gaskets standard.
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RINGS
  New STD   Old STD
Size I.D. O.D.   I.D. O.D.
1/2" 27/32" 2-1/8"   1/2" 2-1/8"
3/4" 1-1/16" 2-5/8"   3/4" 2-5/8"
1" 1-5/16" 2-7/8"   1" 2-7/8"
1-1/4" 1-21/32" 3-1/4"   1-1/4" 3-1/4"
1-1/2" 1-29/32" 3-3/4"   1-1/2" 3-3/4"
2" 2-3/8" 4-3/8"   2" 4-3/8"
2-1/2" 2-7/8" 5-1/8"   2-1/2" 5-1/8"
3" 3-1/2" 5-7/8"   3" 5-7/8"
3-1/2" 4" 6-1/2"   3-1/2" 6-1/2"
4" 4-1/2" 7-1/8"   4" 7-1/8"
4 1/2" 5" 7-5/8"   4 1/2" 7-5/8"
5" 5-9/16" 8-1/2"   5" 8-1/2"
6" 6-5/8" 9-7/8"   6" 9-7/8"
7" 7-5/8" 10-7/8"   7" 10-7/8"
8" 8-5/8" 12-1/8"   8" 12-1/8"
9" 9-5/8" 12-7/8"   9" 12-7/8"
10" 10-3/4" 14-1/4"   10" 14-1/4"
12" 12-3/4" 16-5/8"   12" 16-5/8"
14" 14" 19-1/8"   13-1/4" 19-1/8"
15" 15" 20-1/8"   14-1/4" 20-1/8"
16" 16" 21-1/4"   15-1/4" 21-1/4"
18" 18" 23-1/2"   17" 23-1/2"
20" 20" 25-3/4"   19" 25-3/4"
22" 22" 27-5/8"   21" 27-5/8"