Page 118 - 2010-2022 hose manufactureing ability and guide

TABLE 11-7
PIPE FLANGE DIMENSIONS
250 LB. U.S.A. STANDARD CAST IRON USE ANSI B16.1
300 LB. U.S.A. STANDARD STEEL ANSI B16.5
Steel is generally used.

Designated O.D. of Thickness Bolt Size of Approx. Wt.-Lbs.
Pipe Size Flange Of Flange Circle No. of Bolt (Slip-on*
Inches Inches Inches Inches Bolts Inches or Threaded)

1 4.875 0.688 3.500 4 5/8 3
1 1/4 5.250 0.750 3.875 4 5/8 4

1 1/2 6.125 0.813 4.500 4 3/4 6
2 6.50 0.875 5.000 8 5/8 7
2 1/2 7.50 1.000 5.875 8 3/4 10

3 8.25 1.125 6.625 8 3/4 13
3 1/2 9.00 1.188 7.250 8 3/4 17
4 10.00 1.250 7.875 8 3/4 22
5 11.00 1.375 9.250 8 3/4 28
6 12.50 1.438 10.625 12 3/4 37

8 15.00 1.625 13.000 12 3/4 58
10 17.50 1.875 15.250 16 7/8 76
12 20.50 2.000 17.750 16 1 115

14 23.00 2.125 20.250 20 1 1/8 163
16 25.50 2.250 22.500 20 1 1/8 220
18 28.00 2.375 24.750 24 1 1/4 280
20 30.50 2.500 27.000 24 1 1/4 325
24 36.00 2.750 32.000 24 1 1/2 492

*Cast Iron flange not available in slip-on style

RMA/IP-2/2003 97