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| Long Weld Neck - Class 150 |
NOMINAL
SIZE
AND BORE
J |
OUTSIDE
DIA.
O |
MINIMUM
FLANGE
THICKNESS
Q |
MINIMUM
WALL
THICKNESS |
DIA. OF
HUB AT
POINT OF
WELDING
H |
LENGTH
THROUGH
HUB
Y |
DIA. OF
RAISED
FACE
R |
| 0.5 |
3.50 |
0.44 |
0.36 |
1.25 |
9 |
1.38 |
| 0.75 |
3.88 |
0.50 |
0.38 |
1.62 |
9 |
1.69 |
| 1 |
4.25 |
0.56 |
0.50 |
2.00 |
9 |
2.00 |
| 1.25 |
4.62 |
0.62 |
0.56 |
2.38 |
9 |
2.50 |
| 1.5 |
5.00 |
0.69 |
0.56 |
2.62 |
9 |
2.88 |
| 2 |
6.00 |
0.75 |
0.62 |
3.25 |
9 |
3.62 |
| 2.5 |
7.00 |
0.88 |
0.62 |
3.75 |
9 |
4.12 |
| 3 |
7.50 |
0.94 |
0.62 |
4.25 |
9 |
5.00 |
| 3.5 |
8.50 |
0.94 |
0.69 |
4.88 |
9 |
5.50 |
| 4 |
9.00 |
0.94 |
0.75 |
5.50 |
12 |
6.19 |
| 5 |
10.00 |
0.94 |
0.75 |
6.50 |
12 |
7.31 |
| 6 |
11.00 |
1.00 |
0.88 |
7.75 |
12 |
8.50 |
| 8 |
13.50 |
1.12 |
0.88 |
9.75 |
12 |
10.62 |
| 10 |
16.00 |
1.19 |
1.00 |
12.00 |
12 |
12.75 |
| 12 |
19.00 |
1.25 |
1.19 |
14.38 |
12 |
15.00 |
| 14 |
21.00 |
1.38 |
1.00 |
16.00 |
12 |
16.25 |
| 16 |
23.50 |
1.44 |
1.00 |
18.00 |
12 |
18.50 |
| 18 |
25.00 |
1.56 |
1.00 |
20.00 |
12 |
21.00 |
| 20 |
27.50 |
1.69 |
1.00 |
22.00 |
12 |
23.00 |
| 24 |
32.00 |
1.88 |
1.12 |
26.25 |
12 |
27.25 |
| - |
DRILLING TEMPLATE |
APPROX.
WEIGHT
IN
POUNDS |
NOMINAL SIZE
AND BORE
J |
NO.
OF
HOLES |
DIA.
OF
HOLES |
DIA.
OF
BOLTS |
DIA.
BOLT
CIRCLE |
| 0.5 |
4 |
0.62 |
0.50 |
2.38 |
8 |
| 0.75 |
4 |
0.62 |
0.50 |
2.75 |
8 |
| 1 |
4 |
0.62 |
0.50 |
3.12 |
8 |
| 1.25 |
4 |
0.62 |
0.50 |
3.50 |
10 |
| 1.5 |
4 |
0.62 |
0.50 |
3.88 |
12 |
| 2 |
4 |
0.75 |
0.62 |
4.75 |
16 |
| 2.5 |
4 |
0.75 |
0.62 |
5.50 |
21 |
| 3 |
4 |
0.75 |
0.62 |
6.00 |
24 |
| 3.5 |
8 |
0.75 |
0.62 |
7.00 |
31 |
| 4 |
8 |
0.75 |
0.62 |
7.50 |
47 |
| 5 |
8 |
0.88 |
0.75 |
8.50 |
57 |
| 6 |
8 |
0.88 |
0.75 |
9.50 |
77 |
| 8 |
8 |
0.88 |
0.75 |
11.75 |
103 |
| 10 |
12 |
1.00 |
0.88 |
14.25 |
150 |
| 12 |
12 |
1.00 |
0.88 |
17.00 |
215 |
| 14 |
12 |
1.12 |
1.00 |
18.75 |
221 |
| 16 |
16 |
1.12 |
1.00 |
21.25 |
254 |
| 18 |
16 |
1.25 |
1.12 |
22.75 |
278 |
| 20 |
20 |
1.25 |
1.12 |
25.00 |
324 |
| 24 |
20 |
1.38 |
1.25 |
29.50 |
439 |
Necks are furnished machined all over.
Unless otherwise specified, Class 150 Seamless Long Weld Necks will be furnished drilled
and with a 0.06" raised face which is included in thickness "Q" and Length "Y".
Long Weld Necks conform to the requirements of the latest API/ASME Code.
Other lengths available upon request.
Long weld neck flanges are also available classes 400, 900, 1500 & 2500. |
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