150 LB

Bolting Dimensions for ANSI - B16.5 Flanges

Flange &

Nominal Pipe Size

Flange Studs Wrench Size

Stud Bolt Length Ring No. No.

Of Studs

Diameter Of

Studs

Raised Face Flange

(Stud Length)

Ring Joint Flange

(Stud Length)

1/2 4 1/2 7/8 2-1/4 - - 3/4 4 1/2 7/8 2-1/2 - -

1 4 1/2 7/8 2-1/2 3 R15 1-1/4 4 1/2 7/8 2-3/4 3-1/4 R17 1-1/2 4 1/2 7/8 2-3/4 3-1/4 R19

2 4 5/8 1-1/16 3-1/4 3-3/4 R22 2-1/2 4 5/8 1-1/16 3-1/2 4 -

3 4 5/8 1-1/16 3-1/2 4 R29 3-1/2 8 5/8 1-1/16 3-1/2 4 -

4 8 5/8 1-1/16 3-1/2 4 R32 5 8 3/4 1-1/4 3-3/4 4-1/4 - 6 8 3/4 1-1/4 4 4-1/2 R43 8 8 3/4 1-1/4 4-1/4 4-3/4 R48

10 12 7/8 1-7/16 4-1/2 5 R52 12 12 7/8 1-7/16 4-3/4 5-1/4 R56 14 12 1 1-5/8 5-1/4 5-3/4 R59 16 16 1 1-5/8 5-1/4 5-3/4 R64 18 16 1-1/8 1-13/16 5-3/4 6-1/4 R68 20 20 1-1/8 1-13/16 6-1/4 6-3/4 R72 24 20 1-1/4 2 6-3/4 7-1/4 R76 26 24 1-1/4 2 7 7-1/2 30 28 1-1/4 2 7-1/4 7-3/4 36 32 1-1/2 2-3/8 8-1/4 8-3/4 42 36 1-1/2 2-3/8 8-3/4 9