ANSI B16.5 Class 150 Forged Flanges
Weld Neck Threaded Slip- On
Lap Joint Socket Weld Blind
Nom.
Pipe
Size
O T1 R X No.2
/Dia.
of Holes
Bolt
Circle
Dia. L21
H B23
L B r L34
B3 D
½ 3.5 .44 1.38
1.19
4-0.62 2.38 1.88
.84 .62 .62 .88 .12
.62 .9 .38
¾ 3.88
.5 1.69
1.5 4-0.62 2.75 2.06
1.05
.82 .62 1.09
.12
.62 1.11
.44
1 4.25
.56 2 1.94
4-0.62 3.12 2.19
1.32
1.05
.69 1.36
.12
.69 1.38
.5
1¼ 4.62
.62 2.5 2.31
4-0.62 3.5 2.25
1.66
1.38
.81 1.70
.19
.81 1.72
.56
1½ 5 .68 2.88
2.56
4-0.62 3.88 2.44
1.9 1.61
.88 1.95
.25
.88 1.97
.62
2 6 .75 3.62
3.06
4-0.75 4.75 2.5 2.38
2.07
1 2.44
.31
1 2.46
.69
2½ 7 .88 4.12
3.56
4-0.75 5.5 2.75
2.88
2.47
1.12
2.94
.31
1.12
2.97
.75
3 7.5 .94 5 4.25
4-0.75 6 2.75
3.5 3.07
1.19
3.57
.38
1.19
3.6 .81
3½ 8.5 .94 5.5 4.81
8-0.75 7 2.81
4 3.55
1.25
4.07
.38
1.25
4.1 .88
4 9 .94 6.19
5.31
8-0.75 7.5 3 4.5 4.03
1.31
4.57
.44
1.31
4.6 .94
5 10 .94 7.31
6.44
8-0.88 8.5 3.5 5.56
5.05
1.44
5.66
.44
1.44
5.69
.94
6 11 1 8.5 7.56
8-0.88 9.5 3.5 6.63
6.07
1.56
6.72
.5 1.56
6.75
1.06
8 13.5
1.12
10.62
9.69
8-0.88 11.75
4 8.63
7.98
1.75
8.72
.5 1.75
8.75
1.25
10 16 1.19
12.75
12 12-1.00 14.25
4 10.75
10.02
1.94
10.88
.5 1.94
10.92
1.31
12 19 1.25
15 14.38
12-1.00 17 4.5 12.75
12 2.19
12.88
.5 2.19
12.92
1.56
14 21 1.38
16.25
15.75
12-1.12 18.75
5 14 13.25
2.25
14.14
.5 3.12
14.18
1.63
16 23.5
1.44
18.5
18 16-1.12 21.25
5 16 15.25
2.5 16.16
.5 3.44
16.19
1.75
18 25 1.56
21 19.88
16-1.25 22.75
5.5 18 17.25
2.69
18.18
.5 3.81
18.20
1.94
20 27.5
1.69
23 22 20-1.25 25 5.69
20 19.25
2.88
20.2
.5 4.06
20.25
2.13
22 29.5
1.81
25.25
24.25
20-1.38 27.25
5.88
22 21.25
3.13
22.22
.5 4.25
22.25
2.38
24 32 1.88
27.25
26.12
20-1.38 29.5 6 24 23.25
3.25
24.25
.5 4.38
24.25
2.50
Dimensions in inches.
1- 1/16 in. raised face included in dimensions T, L and L2.
2- Bolt hole diameter 1/8 in. larger than bolt diameter.
3- Standard Bore dimensions provided.
4- This dimension is commonly associated with "true" Lap Joints. Industry standard is to make to the slip on length thru the hub.
Texas Flange 877-610-8924