Table D for W. Steam Pressure upto 50 lbs per Sq. Inch
(in inchines)
  Table E for W. Steam Pressure 50 lbs and upto 100 lbs per Sq. Inch (in inchines)
Nominal
Dia.
of
Flange
I.D. of Flange Dia.
of
Bolt Circle
No.
of
Dia.
of
Bolt Holes
Thickness Nominal
Dia.
of
Flange
I.D. of Flange Dia.
of
Bolt Circle
No.
of
Dia.
of
Bolt Holes
Thickness
Pipe Size D D5 K Holes d2 B Pipe Size D d5 k Holes d2 b
1/2" 3.3/4" 7/8" 2.5/8" 4 5/8" 3/16" 1/2" 3.3/4" 7/8" 2.5/8" 4 5/8" 1/4"
3/4" 4" 1.3/32" 2.7/8" 4 5/8" 3/16" 3/4" 4" 1.3/32" 2.7/8" 4 5/8" 1/4"
1" 4.1/2" 1.23/64" 3.1/4" 4 5/8" 3/16" 1" 4.1/2" 1.23/64" 3.1/4" 4 5/8" 9/32"
1.1/4" 4.3/4" 1.45/64" 3.7/16" 4 5/8" 1/4" 1.1/4" 4.3/4" 1.45/64" 3.7/16" 4 5/8" 5/16"
1.1/2" 5.1/4" 1.15/16" 3.7/8" 4 5/8" 1/4" 1.1/2" 5.1/4" 1.15/16" 3.7/8" 4 5/8" 11/32"
2" 6" 2.7/16" 4.1/2" 4 3/4" 5/16" 2" 6" 2.7/16" 4.1/2" 4 3/4" 3/8"
2.1/2 6.1/2" 2.15/16" 5" 4 3/4" 5/16" 2.1/2" 6.1/2" 2.15/16" 5" 4 3/4" 13/32"
3" 7.1/4" 3.37/64" 5.3/4" 4 3/4" 3/8" 3" 7.1/4" 3.37/64" 5.3/4" 4 3/4" 7/16"
3.1/2" 8" 4.5/64" 6.1/2" 4 3/4" 3/8" 3.1/2" 8" 4.5/64" 6.1/2" 8 3/4" 15/32"
4" 8.1/2" 4.37/64" 7" 4 3/4" 3/8" 4" 8.1/2" 4.37/64" 7" 8 3/4" 1/2"
5" 10" 5.43/64" 8.1/4" 8 3/4" 1/2" 5" 10" 5.43/64" 8.1/4" 8 3/4" 9/16"
6" 11" 6.23/32" 9.1/4" 8 3/4" 1/2" 6" 11" 6.23/32" 9.1/4" 8 7/8" 11/16"
7" 12" 7.5/8" 10.1/4" 8 3/4" 1/2" 7" 12" 7.5/8" 10.1/4" 8 7/8" 3/4"
8' 13.1/4" 8.23/32" 11.1/2" 8 3/4" 1/2" 8" 13.1/4" 8.23/32" 11.1/2" 8 7/8" 3/4"
9" 14.1/2" 9.23/32" 12.3/4" 8 3/4" 5/8" 9" 14.1/2" 9.23/32" 12.3/4" 12 7/8" 13/16"
10" 16" 10.7/8" 14" 8 7/8" 5/8" 10" 16" 10.7/8" 14" 12 7/8" 7/8"
12" 18" 12.7/8" 16" 12 7/8" 5/8" 12" 18" 12.7/8" 16" 12 1" 1"
14" 20.3/4" 14.9/64" 18.1/2" 12 1" 7/8" 14" 20.3/4" 14.9/64" 18.1/2" 12 1" 1.1/8"
16" 22.3/4" 16.5/32" 20.1/2" 12 1" 7/8" 16" 22.3/4" 16.5/32" 20.1/2" 12 1" 1.1/4"
18" 25.1/4" 18.3/16" 23" 16 1" 7/8" 18" 25.1/4" 18.3/16" 23" 16 1" 1.3/8"
20" 27.3/4" 20.13/16" 25.1/4" 16 1" 1" 20" 27.3/4" 20.13/16" 25.1/4" 16 1" 1.1/2"
24" 32.1/2" 24.1/4" 29.3/4" 16 1.1/8" 1.1/4" 24" 32.1/2" 24.1/4" 29.3/4" 16 1.1/4" 1.7/8"