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Pocket Guide to Flan..

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Table 1-16<br />

Alloy Steel Stud Bolts for ANSI 2500.1b<br />

Ring Type Joint <strong>Flan</strong>ges, Each With<br />

Two Heavy Hex Nuts<br />

Nominal Number of Size & Length Wrench Oval Ring<br />

Pipe Bolts of Size for Gasket<br />

Size (in.) Required Stud Bolts (in.) Nuts (in.) R-Number<br />

1/2<br />

3/4<br />

1<br />

11/4<br />

11/:,<br />

2<br />

21/2<br />

3<br />

4<br />

5<br />

6<br />

8<br />

10<br />

12<br />

In agreement with ANSI B. 16.5<br />

4 3/4 x 51/4 11/4<br />

4 %x5V4 11/4<br />

4 7/8 x 53/4 17h6<br />

4 1 x61h 1%<br />

4 lV8 x 71/4 1~3/18<br />

8 1 x71/2 1%<br />

8 1118 x 8114 113116<br />

8 1114 x 9114 2<br />

8 1112 x 10314 23/8<br />

8 13/4 x 12314 23/4<br />

8 2 x 14112 3118<br />

12 2 x 16 31/8<br />

12 21/2 x 20112 37/8<br />

12 23/4 x 22112 41/4<br />

R-13<br />

R-16<br />

R-18<br />

R-21<br />

R-23<br />

R-26<br />

R-28<br />

R-32<br />

R-38<br />

R-42<br />

R-47<br />

R-51<br />

R-55<br />

R-60<br />

37

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