Flange – Threaded, ANSI Class 2500, ASME B16.5, 1/4″ Raised 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.
- Flanges are tapped with American National Standard taper pipe threads.
- Bolt circle diameters are 1/8 inch larger than bolt diameter.
Pipe Size(NPS) |
OutsideDiameter
of
Flange
A |
Diameterof
Raised
Face
B |
Thicknessof
Flange
C |
Diameterof Hub
at Base
J |
Lengthof
Hub
L |
MinimumThread
Length
N |
DiameterBore
S |
Numberof
Bolt
Holes |
Diameterof
Bolt
Holes |
BoltCircle Diameter
P |
Approx.Weight |
1/2 |
5 1/4 |
1 3/8 |
1 3/16 |
1 11/16 |
1 9/16 |
1 1/8 |
0.93 |
4 |
7/8 |
3 1/2 |
7 |
3/4 |
5 1/2 |
1 11/16 |
1 1/4 |
2 |
1 11/16 |
1 1/4 |
1.14 |
4 |
7/8 |
3 3/4 |
9 |
1 |
6 1/4 |
2 |
1 3/8 |
2 1/4 |
1 7/8 |
1 3/8 |
1.41 |
4 |
1 |
4 1/4 |
12 |
1 1/4 |
7 1/4 |
2 1/2 |
1 1/2 |
2 7/8 |
2 1/16 |
1 1/2 |
1.75 |
4 |
1 1/8 |
5 1/8 |
18 |
1 1/2 |
8 |
2 7/8 |
1 3/4 |
3 1/8 |
2 3/8 |
1 3/4 |
1.99 |
4 |
1 1/4 |
5 3/4 |
25 |
2 |
9 1/4 |
3 5/8 |
2 |
3 3/4 |
2 3/4 |
2 |
2.50 |
8 |
1 1/8 |
6 3/4 |
38 |
2 1/2 |
10 1/2 |
4 1/8 |
2 1/4 |
4 1/2 |
3 1/8 |
2 1/4 |
3.00 |
8 |
1 1/4 |
7 3/4 |
55 |
3 |
12 |
5 |
2 5/8 |
5 1/4 |
3 5/8 |
2 1/2 |
3.63 |
8 |
1 3/8 |
9 |
83 |
3 1/2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
4 |
14 |
6 3/16 |
3 |
6 1/2 |
4 1/4 |
2 3/4 |
4.63 |
8 |
1 5/8 |
10 3/4 |
127 |
5 |
16 1/2 |
7 5/16 |
3 5/8 |
8 |
5 1/8 |
3 |
5.69 |
8 |
1 7/8 |
12 3/4 |
210 |
6 |
19 |
8 1/2 |
4 1/4 |
9 1/4 |
6 |
3 1/4 |
6.75 |
8 |
2 1/8 |
14 1/2 |
323 |
8 |
21 3/4 |
10 5/8 |
5 |
12 |
7 |
3 3/4 |
8.75 |
12 |
2 1/8 |
17 1/4 |
485 |
10 |
26 1/2 |
12 3/4 |
6 1/2 |
14 3/4 |
9 |
4 1/4 |
10.88 |
12 |
2 5/8 |
21 1/4 |
925 |
12 |
30 |
15 |
7 1/4 |
17 3/8 |
10 |
4 3/4 |
12.94 |
12 |
2 7/8 |
24 3/8 |
1300 |