Flange – Lap Joint, ANSI Class 400, ASME B16.5, Flat Face (in)
- Dimensions and tolerances in accordance with ANSI/ASME B16.5 for sizes 1/2″ to 24″.
- Carbon steel forgings in accordance with ASTM A105.
- Bolt circle diameters are 1/8 inch larger than bolt diameter.
- 1/4″ raised face is not included in dimension “C” and “M”.
Pipe Size(NPS) |
OutsideDiameter of
Flange
A |
Thicknessof
Flange
C |
DiameterOf
Bore
F |
Diameterof Hub
at Base
J |
Lengthof
Hub
M |
Radius
R |
Numberof
Bolt
Holes |
Diameterof
Bolt
Holes |
BoltCircle Diameter
P |
Approx.Weight |
1/2 |
3 3/4 |
9/16 |
0.90 |
1 1/2 |
7/8 |
1/8 |
4 |
5/8 |
2 5/8 |
3 |
3/4 |
4 5/8 |
5/8 |
1.11 |
1 7/8 |
1 |
1/8 |
4 |
3/4 |
3 1/4 |
3 |
1 |
4 7/8 |
11/16 |
1.38 |
2 1/8 |
1 1/16 |
1/8 |
4 |
3/4 |
3 1/2 |
4 |
1 1/4 |
5 1/4 |
13/16 |
1.72 |
2 1/2 |
1 1/8 |
3/16 |
4 |
3/4 |
3 7/8 |
6 |
1 1/2 |
6 1/8 |
7/8 |
1.97 |
2 3/4 |
1 1/4 |
1/4 |
4 |
7/8 |
4 1/2 |
7 |
2 |
6 1/2 |
1 |
2.46 |
3 5/16 |
1 7/16 |
5/16 |
8 |
3/4 |
5 |
9 |
2 1/2 |
7 1/2 |
1 1/8 |
2.97 |
3 15/16 |
1 5/8 |
5/16 |
8 |
7/8 |
5 7/8 |
12 |
3 |
8 1/4 |
1 1/4 |
3.60 |
4 5/8 |
1 13/16 |
3/8 |
8 |
7/8 |
6 5/8 |
15 |
3 1/2 |
9 |
1 3/8 |
4.10 |
5 1/4 |
1 15/16 |
3/8 |
8 |
1 |
7 1/4 |
20 |
4 |
10 |
1 3/8 |
4.60 |
5 3/4 |
2 |
7/16 |
8 |
1 |
7 7/8 |
25 |
5 |
11 |
1 1/2 |
5.69 |
7 |
2 1/8 |
7/16 |
8 |
1 |
9 1/4 |
29 |
6 |
12 1/2 |
1 5/8 |
6.75 |
8 1/8 |
2 1/4 |
1/2 |
12 |
1 |
10 5/8 |
42 |
8 |
15 |
1 7/8 |
8.75 |
10 1/4 |
2 11/16 |
1/2 |
12 |
1 1/8 |
13 |
64 |
10 |
17 1/2 |
2 1/8 |
10.92 |
12 5/8 |
4 |
1/2 |
16 |
1 1/4 |
15 1/4 |
112 |
12 |
20 1/2 |
2 1/4 |
12.92 |
14 3/4 |
4 1/4 |
1/2 |
16 |
1 3/8 |
17 3/4 |
152 |
14 |
23 |
2 3/8 |
14.18 |
16 3/4 |
4 5/8 |
1/2 |
20 |
1 3/8 |
20 1/4 |
210 |
16 |
25 1/2 |
2 1/2 |
16.19 |
19 |
5 |
1/2 |
20 |
1 1/2 |
22 1/2 |
280 |
18 |
28 |
2 5/8 |
18.20 |
21 |
5 3/8 |
1/2 |
24 |
1 1/2 |
24 3/4 |
345 |
20 |
30 1/2 |
2 3/4 |
20.25 |
23 1/8 |
5 3/4 |
1/2 |
24 |
1 5/8 |
27 |
420 |
22 |
33 |
2 7/8 |
22.25 |
25 1/4 |
6 |
1/2 |
24 |
1 3/4 |
29 1/4 |
455 |
24 |
36 |
3 |
24.25 |
27 5/8 |
6 1/4 |
1/2 |
24 |
1 7/8 |
32 |
615 |