Elliptical Head (EHA/EHB)
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Elliptical Vessel Head, Elliptical Tank Head, Custom Head for Pressure Vessel, Customized Storage Tank Head, Pressure Container Head Customization
Weide takes a total area of 30 thousand m2. Our head forming is the most advanced one in the world. We have now independently developed 6600t, 3000t, and 680t fully automatic double-acting hydraulic presses, 10m, 4m, and 3m cold metal spinning machines, 4.5m hot metal spinning machines, and other supporting equipment and molds. We have comprehensive , allowing Weide to produce pressure vessel heads of all shapes, specifications, and materials.
No. | Nominal diameter DN/mm | Total depth H/mm Tolerance | Roundness | Degree of convexity | Degree of concavity | Height of the straight edge |
Standard | -0.2%~0.6%DN | ≤ 0.5%DN; ≤ 25mm | ≤ 1.25%Di | ≤ 0.625% Di | -5% ~10%h | |
1 | 300 | 100 | ≤ 1.5 | ≤ 3.75 | ≤ 1.88 | 25 |
2 | 350 | 113 | ≤ 1.75 | ≤ 4.38 | ≤ 2.19 | 25 |
3 | 400 | 125 | ≤ 2 | ≤ 5 | ≤ 2.5 | 25 |
4 | 450 | 138 | ≤ 2.25 | ≤ 5.63 | ≤ 2.81 | 25 |
5 | 500 | 150 | ≤ 2.5 | ≤ 6.25 | ≤ 3.13 | 25 |
6 | 550 | 163 | ≤ 2.75 | ≤ 6.88 | ≤ 3.44 | 25 |
7 | 600 | 175 | ≤ 3 | ≤ 7.5 | ≤ 3.75 | 25 |
8 | 650 | 188 | ≤ 3.25 | ≤ 8.13 | ≤ 4.06 | 25 |
9 | 700 | 200 | ≤ 3.5 | ≤ 8.75 | ≤ 4.38 | 25 |
10 | 750 | 213 | ≤ 3.75 | ≤ 9.38 | ≤ 4.69 | 25 |
11 | 800 | 225 | ≤ 4 | ≤ 10 | ≤ 5 | 25 |
12 | 850 | 238 | ≤ 4.25 | ≤ 10.63 | ≤ 5.31 | 25 |
13 | 900 | 250 | ≤ 4.5 | ≤ 11.25 | ≤ 5.63 | 25 |
14 | 950 | 263 | ≤ 4.75 | ≤ 11.88 | ≤ 5.94 | 25 |
15 | 1000 | 275 | ≤ 5 | ≤ 12.5 | ≤ 6.25 | 25 |
16 | 1100 | 300 | ≤ 5.5 | ≤ 13.75 | ≤ 6.88 | 25 |
17 | 1200 | 325 | ≤ 6 | ≤ 15 | ≤ 7.5 | 25 |
18 | 1300 | 350 | ≤ 6.5 | ≤ 16.25 | ≤ 8.13 | 25 |
19 | 1400 | 375 | ≤ 7 | ≤ 17.5 | ≤ 9.38 | 25 |
20 | 1500 | 400 | ≤ 7.5 | ≤ 18.75 | ≤ 9.38 | 25 |
No. | Nominal diameter DN/mm | Total depth H/mm Tolerance | Roundness | Degree of convexity | Degree of concavity | Height of the straight edge Tolerance |
Standard | -0.2%~0.6%DN | ≤ 0.5%DN; ≤ 25mm | ≤ 1.25%Di | ≤ 0.625% Di | -5% ~10%h | |
21 | 1600 | 425 | ≤ 8 | ≤ 20 | ≤ 10 | 25 |
22 | 1700 | 450 | ≤ 8.5 | ≤ 21.25 | ≤ 10.63 | 25 |
23 | 1800 | 475 | ≤ 9 | ≤ 22.5 | ≤ 11.25 | 25 |
24 | 1900 | 500 | ≤ 9.5 | ≤ 23.75 | ≤ 11.88 | 25 |
25 | 2000 | 525 | ≤ 10 | ≤ 25 | ≤ 12.5 | 40 |
26 | 2100 | 565 | ≤ 10.5 | ≤ 26.25 | ≤ 13.13 | 40 |
27 | 2200 | 590 | ≤ 11 | ≤ 27.5 | ≤ 13.75 | 40 |
28 | 2300 | 615 | ≤ 11.5 | ≤ 28.75 | ≤ 14.38 | 40 |
29 | 2400 | 640 | ≤ 12 | ≤ 30 | ≤ 15 | 40 |
30 | 2500 | 665 | ≤ 12.5 | ≤ 31.25 | ≤ 15.63 | 40 |
31 | 2600 | 690 | ≤ 13 | ≤ 32.5 | ≤ 16.25 | 40 |
32 | 2700 | 715 | ≤ 13.5 | ≤ 33.75 | ≤ 16.88 | 40 |
33 | 2800 | 740 | ≤ 14 | ≤ 35 | ≤ 17.5 | 40 |
34 | 2900 | 765 | ≤ 14.5 | ≤ 36.25 | ≤ 18.13 | 40 |
35 | 3000 | 790 | ≤ 15 | ≤ 37.5 | ≤ 18.75 | 40 |
No. | Nominal diameter DN/mm | Nominal thickness | Total depth H/mm Tolerance | Roundness | Degree of convexity | Degree of concavity | Height of the straight edge |
Standard | -0.2%~0.6%DN | ≤ 0.5%DN; ≤ 25mm | ≤ 1.25%Di | ≤ 0.625% Di | -5% ~10%h | ||
159 | 4 | 65 | 25 | ||||
5 | 25 | ||||||
6 | 25 | ||||||
8 | 25 | ||||||
219 | 5 | 80 | 25 | ||||
6 | 25 | ||||||
8 | 80 | ≤ 1.1 | ≤ 2.54 | ≤ 1.27 | 25 | ||
273 | 6 | 93 | 25 | ||||
8 | 25 | ||||||
10 | 25 | ||||||
12 | 25 | ||||||
325 | 6 | 106 | 25 | ||||
8 | 25 | ||||||
10 | 25 | ||||||
12 | 25 | ||||||
377 | 8 | 119 | 25 | ||||
10 | 25 | ||||||
12 | 25 | ||||||
14 | 25 | ||||||
426 | 8 | 132 | ≤ 2.0 | 5.07 | 2.54 | 25 | |
10 | 25 | ||||||
12 | 25 | ||||||
14 | 25 |
Notes:
a. Total depth of head = depth of curved edge straight edge (1/4Di straight edge)
b. Longitudinal folds are not allowed on the straight edge of heads
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