Description
The cap has a semi-ellipsoidal crown and a cylindrical weld edge. ASME caps can be made from carbon steel, stainless steel, SA516 Gr70, SA516 Gr60, or another specified piping material. Smaller sizes are generally pressed, while larger dimensions may be spun or produced through combined forming. The outside diameter at the bevel, length E, limiting wall thickness, and alternate length E1 follow the selected size row. After forming, the edge is trimmed and prepared for welding. Material marking, surface treatment, dimensional inspection, project identification, and export packing can be included before the pieces enter finished storage.
Components
A semi-ellipsoidal crown forms the closed end.
The cylindrical section matches the listed pipe outside diameter.
The weld edge may include the ordered bevel and root face.
Drain holes, vents, identification marks, and handling supports may be added to ASME caps.
Product Parameters
|
Nominal Pipe Size NPS |
Outside Diameter at Bevel/mm |
Length E/mm |
Limiting Wall Thickness for E/mm |
Length E1/mm |
|
1/2 |
21.3 |
25 |
4.57 |
25 |
|
3/4 |
26.7 |
25 |
3.81 |
25 |
|
1 |
33.4 |
38 |
4.57 |
38 |
|
1 1/4 |
42.2 |
38 |
4.83 |
38 |
|
1 1/2 |
48.3 |
38 |
5.08 |
38 |
|
2 |
60.3 |
38 |
5.59 |
44 |
|
2 1/2 |
73.0 |
38 |
7.11 |
51 |
|
3 |
88.9 |
51 |
7.62 |
64 |
|
3 1/2 |
101.6 |
64 |
8.13 |
76 |
|
4 |
114.3 |
64 |
8.64 |
76 |
|
5 |
141.3 |
76 |
9.65 |
89 |
|
6 |
168.3 |
89 |
10.92 |
102 |
|
8 |
219.1 |
102 |
12.70 |
127 |
|
10 |
273.0 |
127 |
12.70 |
152 |
|
12 |
323.8 |
152 |
12.70 |
178 |
|
14 |
355.6 |
165 |
12.70 |
191 |
|
16 |
406.4 |
178 |
12.70 |
203 |
|
18 |
457 |
203 |
12.70 |
229 |
|
20 |
508 |
229 |
12.70 |
254 |
|
22 |
559 |
254 |
12.70 |
254 |
|
24 |
610 |
267 |
12.70 |
305 |
|
26 |
660 |
267 |
... |
... |
|
28 |
711 |
267 |
... |
... |
|
30 |
762 |
267 |
... |
... |
|
32 |
813 |
267 |
... |
... |
|
34 |
864 |
267 |
... |
... |
|
36 |
914 |
267 |
... |
... |
|
38 |
965 |
305 |
... |
... |
|
40 |
1 016 |
305 |
... |
... |
|
42 |
1 067 |
305 |
... |
... |
|
44 |
1 118 |
343 |
... |
... |
|
46 |
1 168 |
343 |
... |
... |
|
48 |
1 219 |
343 |
... |
... |
Why Choose Us
Standard dimensions are handled together with material control, edge preparation, inspection, and packing. The press line covers many regular cap sizes, while spinning equipment supports large diameters. CNC grinding and beveling machines prepare the weld edge after forming. Material analyzers and dimensional tools help confirm each piece before finished storage. For project shipments, line numbers, heat references, size marks, and packing lists can be coordinated so similar caps remain separated.
Rows that show an agreement value are handled as project dimensions and are confirmed with the purchaser before the production drawing is released.
The finished cap can also be grouped by line number, wall schedule, and material heat in the packing list.
Frequently Asked Questions (FAQ)
Q: When is length E1 used?
A: It applies under the wall-thickness condition shown for the selected size.
Q: Can large sizes be supplied with a project-specific E1?
A: Where the table shows an agreement item, the purchaser and manufacturer can confirm the value for the order.
Q: What is needed to quote ASME caps?
A: Send NPS, outside diameter, wall thickness, material, bevel, quantity, surface condition, and inspection requirements.
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