short name: KORB*semi-elliptical head DIN 28013
technical product sheet
D s r H
48,3 3,0 39 22
60,3 3,0 48 27
60,3 4,0 48 27
76,1 4,0 61 29
101,6 3,0 81 33
108,0 6,0 86 48
114,3 4,0 91 46
139,7 3,0 112 43
139,7 4,0 112 49
168,3 3,0 135 49
168,3 4,0 135 57
219,1 3,0 175 66
219,1 4,0 175 58
273,0 3,0 218 69
306,0 3,0 245 80
306,0 4,0 245 81
400,0 3,0 320 104
406,0 3,0 324 104
419,0 3,0 335 109
457,0 3,0 366 127
available material: 1.4307
Butt welding fittings › caps and heads › semi-elliptical heads
created 02.04.2022 08:25 1/3
Semi-ellipticall head according to DIN 28013
Dimensions Calculationr1 = Curvature radius r1 = 0.8XD
r2 = Corner radius r2 = 0.154XD
h1 = Cylindrical head height h1 = 3s or as desired
h2 = Curvature height h2 = 0.255da – 0.635s
H = Total inner head height H = h1+h2
r1D r2 Ltr.400500 75 16,3
480600 90 28,1
560700 110 44,6
640800 125 66,6
720900 140 94,8
8001000 155 130
8801100 170 173
9601200 185 225
10401300 200 286
11201400 215 357
12001500 230 439
12801600 245 532
13601700 265 639
14401800 280 758
15201900 290 892
16002000 310 1040
16802100 325 1204
17602200 340 1384
18402300 355 1582
19202400 370 1797
20002500 385 2031
20802600 400 2285
21602700 415 2559
22402800 430 2854
23202900 445 3171
24003000 460 3510
created 02.04.2022 08:25 2/3
created 02.04.2022 08:25 3/3