Description
A spherical crown joins the straight flange through a rounded knuckle, keeping the end shallower than an elliptical or hemispherical form. stainless steel dished heads can be made in 304, 316L, 321, or 2205. Regular dimensions may be pressed, while larger pieces can be cold or hot spun. The rim is trimmed after forming, and the flange is corrected for shell fit-up. Pickling, passivation, polishing, matte finishing, beveling, openings, and direction marks can be completed before packing. Protective handling is maintained when the internal surface must remain suitable for cleaning or process service.




Main Applications
Food, pharmaceutical, and pure-water vessels with controlled internal finishes.
Chemical tanks and wastewater equipment exposed to moisture or corrosive media.
Low-pressure storage units where the shallow profile helps control total length.
Fabrication packages using stainless steel dished heads with polished, passivated, or pickled surfaces.
Product Parameters
|
No. |
Nominal Diameter DN/mm |
Total Depth H/mm |
Internal Surface Area A/m² |
Capacity V/m³ |
No. |
Nominal Diameter DN/mm |
Total Depth H/mm |
Internal Surface Area A/m² |
Capacity V/m³ |
|
1 |
300 |
83 |
0.1127 |
0.0044 |
34 |
2900 |
602 |
8.6902 |
2.6779 |
|
2 |
350 |
93 |
0.1488 |
0.0066 |
35 |
3000 |
621 |
9.2869 |
2.9548 |
|
3 |
400 |
103 |
0.1898 |
0.0095 |
36 |
3100 |
641 |
9.9033 |
3.2502 |
|
4 |
450 |
112 |
0.2358 |
0.0130 |
37 |
3200 |
660 |
10.5396 |
3.5646 |
|
5 |
500 |
122 |
0.2868 |
0.0173 |
38 |
3300 |
679 |
11.1956 |
3.8987 |
|
6 |
550 |
132 |
0.3427 |
0.0224 |
39 |
3400 |
699 |
11.8715 |
4.2529 |
|
7 |
600 |
141 |
0.4035 |
0.0284 |
40 |
3500 |
718 |
12.5672 |
4.6280 |
|
8 |
650 |
151 |
0.4693 |
0.0355 |
41 |
3600 |
738 |
13.2826 |
5.0245 |
|
9 |
700 |
161 |
0.5401 |
0.0436 |
42 |
3700 |
757 |
14.0179 |
5.4430 |
|
10 |
750 |
170 |
0.6158 |
0.0528 |
43 |
3800 |
776 |
14.7729 |
5.8841 |
|
11 |
800 |
180 |
0.6964 |
0.0632 |
44 |
3900 |
796 |
15.5478 |
6.3484 |
|
12 |
850 |
190 |
0.7820 |
0.0750 |
45 |
4000 |
815 |
16.3424 |
6.8365 |
|
13 |
900 |
199 |
0.8726 |
0.0881 |
46 |
4100 |
834 |
17.1569 |
7.3489 |
|
14 |
950 |
209 |
0.9681 |
0.1026 |
47 |
4200 |
854 |
17.9912 |
7.8864 |
|
15 |
1000 |
219 |
1.0685 |
0.1186 |
48 |
4300 |
873 |
18.8452 |
8.4494 |
|
16 |
1100 |
238 |
1.2843 |
0.1555 |
49 |
4400 |
893 |
19.7191 |
9.0385 |
|
17 |
1200 |
258 |
1.5198 |
0.1993 |
50 |
4500 |
912 |
20.6127 |
9.6544 |
|
18 |
1300 |
277 |
1.7752 |
0.2506 |
51 |
4600 |
931 |
21.5262 |
10.2977 |
|
19 |
1400 |
296 |
2.0503 |
0.3100 |
52 |
4700 |
951 |
22.4594 |
10.9689 |
|
20 |
1500 |
316 |
2.3453 |
0.3782 |
53 |
4800 |
970 |
23.4125 |
11.6687 |
|
21 |
1600 |
335 |
2.6600 |
0.4556 |
54 |
4900 |
989 |
24.3853 |
12.3975 |
|
22 |
1700 |
354 |
2.9946 |
0.5430 |
55 |
5000 |
1009 |
25.3780 |
13.1561 |
|
23 |
1800 |
374 |
3.3489 |
0.6408 |
56 |
5100 |
1028 |
26.3904 |
13.9451 |
|
24 |
1900 |
393 |
3.7231 |
0.7497 |
57 |
5200 |
1048 |
27.4227 |
14.7649 |
|
25 |
2000 |
413 |
4.1170 |
0.8703 |
58 |
5300 |
1067 |
28.4748 |
15.6162 |
|
26 |
2100 |
447 |
4.6297 |
1.0551 |
59 |
5400 |
1086 |
29.5466 |
16.4997 |
|
27 |
2200 |
466 |
5.0680 |
1.2058 |
60 |
5500 |
1106 |
30.6383 |
17.4158 |
|
28 |
2300 |
486 |
5.5261 |
1.3703 |
61 |
5600 |
1125 |
31.7497 |
18.3652 |
|
29 |
2400 |
505 |
6.0039 |
1.5491 |
62 |
5700 |
1145 |
32.8810 |
19.3485 |
|
30 |
2500 |
524 |
6.5016 |
1.7427 |
63 |
5800 |
1164 |
34.0320 |
20.3663 |
|
31 |
2600 |
544 |
7.0190 |
1.9518 |
64 |
5900 |
1183 |
35.2029 |
21.4191 |
|
32 |
2700 |
563 |
7.5563 |
2.1770 |
65 |
6000 |
1203 |
36.3935 |
22.5076 |
|
33 |
2800 |
583 |
8.1134 |
2.4188 |
- |
- |
- |
- |
- |
Our Services
Grade and surface condition can be coordinated with the shell and process medium.
Pressing, cold spinning, and hot spinning are available for different sizes and plate conditions.
Bevels, nozzle openings, orientation marks, and loose reinforcement parts can be prepared.
Material certificates, dimensional records, and inspection reports can accompany delivery.
Finished surfaces can be protected with film, edge guards, timber supports, and export wrapping.
Technical staff can discuss storage, fit-up, and post-weld surface restoration with the fabricator.
Receiving teams can also request separate labels for surface finish, material heat, and vessel number, which helps prevent polished and unpolished parts from being mixed during storage.
Frequently Asked Questions (FAQ)
Q: Can a polished internal finish be supplied?
A: Yes. The requested finish and acceptance method should be stated before final polishing.
Q: Can the openings be completed before delivery?
A: Yes. Hole size, position, bevel, and orientation should be defined on the approved drawing.
Q: What information is needed for stainless steel dished heads?
A: Send the grade, diameter basis, thickness, flange height, finish, openings, quantity, standard, and inspection requirements.
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