Flange – Threaded, ANSI Class 400, ASME B16.5, Ring Joint Facing (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.
- Flanges are tapped with American National Standard taper pipe threads.
- Bolt circle diameters are 1/8 inch larger than bolt diameter.
| PipeSize
(NPS) |
OutsideDiameter of
Flange
A |
Thicknessof
Flange
C |
Diameterof Hub
at Base
J |
Lengthof
Hub
L |
MinimumThread
Length
N |
DiameterBore
S |
Diameterof Raised
Face
T |
Diameterof
Grove
U |
GroveWidth
W |
GroveDepth
X |
Numberof
Bolt
Holes |
Diameterof
Bolt
Holes |
BoltCircle
Diameter
P |
| 1/2 |
3 3/4 |
9/16 |
1 1/2 |
7/8 |
5/8 |
0.93 |
2 |
1 11/32 |
9/32 |
7/32 |
4 |
5/8 |
2 5/8 |
| 3/4 |
4 5/8 |
5/8 |
1 7/8 |
1 |
5/8 |
1.14 |
2 1/2 |
1 11/16 |
11/32 |
1/4 |
4 |
3/4 |
3 1/4 |
| 1 |
4 7/8 |
11/16 |
2 1/8 |
1 1/16 |
11/16 |
1.41 |
2 3/4 |
2 |
11/32 |
1/4 |
4 |
3/4 |
3 1/2 |
| 1 1/4 |
5 1/4 |
13/16 |
2 1/2 |
1 1/8 |
13/16 |
1.75 |
3 1/8 |
2 3/8 |
11/32 |
1/4 |
4 |
3/4 |
3 7/8 |
| 1 1/2 |
6 1/8 |
7/8 |
2 3/4 |
1 1/4 |
7/8 |
1.99 |
3 9/16 |
2 11/16 |
11/32 |
1/4 |
4 |
7/8 |
4 1/2 |
| 2 |
6 1/2 |
1 |
3 5/16 |
1 7/16 |
1 1/8 |
2.50 |
4 1/4 |
3 1/4 |
15/32 |
5/16 |
8 |
3/4 |
5 |
| 2 1/2 |
7 1/2 |
1 1/8 |
3 15/16 |
1 5/8 |
1 1/4 |
3.00 |
5 |
4 |
15/32 |
5/16 |
8 |
7/8 |
5 7/8 |
| 3 |
8 1/4 |
1 1/4 |
4 5/8 |
1 13/16 |
1 3/8 |
3.63 |
5 3/4 |
4 7/8 |
15/32 |
5/16 |
8 |
7/8 |
6 5/8 |
| 3 1/2 |
9 |
1 3/8 |
5 1/4 |
1 15/16 |
1 9/16 |
4.13 |
6 1/4 |
5 3/16 |
15/32 |
5/16 |
8 |
1 |
7 1/4 |
| 4 |
10 |
1 3/8 |
5 3/4 |
2 |
1 7/16 |
4.63 |
6 7/8 |
5 7/8 |
15/32 |
5/16 |
8 |
1 |
7 7/8 |
| 5 |
11 |
1 1/2 |
7 |
2 1/8 |
1 11/16 |
5.69 |
8 1/4 |
7 1/8 |
15/32 |
5/16 |
8 |
1 |
9 1/4 |
| 6 |
12 1/2 |
1 5/8 |
8 1/8 |
2 1/4 |
1 13/16 |
6.75 |
9 1/2 |
8 5/16 |
15/32 |
5/16 |
12 |
1 |
10 5/8 |
| 8 |
15 |
1 7/8 |
10 1/4 |
2 11/16 |
2 |
8.75 |
11 7/8 |
10 5/8 |
15/32 |
5/16 |
12 |
1 1/8 |
13 |
| 10 |
17 1/2 |
2 1/8 |
12 5/8 |
2 7/8 |
2 3/16 |
10.88 |
14 |
12 3/4 |
15/32 |
5/16 |
16 |
1 1/4 |
15 1/4 |
| 12 |
20 1/2 |
2 1/4 |
14 3/4 |
3 1/8 |
2 3/8 |
12.94 |
16 1/4 |
15 |
15/32 |
5/16 |
16 |
1 3/8 |
17 3/4 |
| 14 |
23 |
2 3/8 |
16 3/4 |
3 5/16 |
2 1/2 |
14.19 |
18 |
16 1/2 |
15/32 |
5/16 |
20 |
1 3/8 |
20 1/4 |
| 16 |
25 1/2 |
2 1/2 |
19 |
3 11/16 |
2 11/16 |
16.19 |
20 |
18 1/2 |
15/32 |
5/16 |
20 |
1 1/2 |
22 1/2 |
| 18 |
28 |
2 5/8 |
21 |
3 7/8 |
2 3/4 |
18.19 |
22 5/8 |
21 |
15/32 |
5/16 |
24 |
1 1/2 |
24 3/4 |
| 20 |
30 1/2 |
2 3/4 |
23 1/8 |
4 |
2 7/8 |
20.19 |
25 |
23 |
17/32 |
3/8 |
24 |
1 5/8 |
27 |
| 22 |
33 |
2 7/8 |
25 1/4 |
4 1/4 |
3 1/16 |
22.19 |
27 |
25 |
19/32 |
7/16 |
24 |
1 3/4 |
29 1/4 |
| 24 |
36 |
3 |
27 5/8 |
4 1/2 |
3 1/4 |
24.19 |
29 1/2 |
27 1/4 |
21/32 |
7/16 |
24 |
1 7/8 |
32 |
