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UNI 2283 PN25 Welding Neck Flange

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UNI 2283 PN25 Welding Neck Flange Dimensions
Dimensions and Weight

UNI 2283 Pn25 Weld Neck Flange Dimensions
Designation Directions d1 a b D f h h1 m r s Hole Screw Weight In KG
Rated
Dia.
External dia.
of the pipe
Kilogram
15 20 21 65 16 95 14 38 6 30 4 2,5 4 M 12 0,83
21,3 22,5 32 0,83
20 25 26 75 18 105 14 40 6 38 4 2,5 4 M 12 1,15
26,9 28 40 1,15
25 30 31 85 18 115 14 40 6 42 4 2,8 4 M 12 1,39
33,7 34,5 46 1,38
32 38 39 100 18 140 18 42 6 52 6 3 4 M 16 2,03
42,4 43,5 56 2,01
40 44,5 45,5 110 18 150 18 45 7 60 6 3 4 M 16 2,35
48,3 49,5 64 2,33
50 57 58 125 20 165 18 48 8 72 6 3,5 4 M 16 3,11
60,3 61,5 75 3.08
65 76,1 77 145 22 185 18 52 10 90 6 3,5 8 M 16 3,95
80 88,9 90 160 24 200 18 58 12 105 8 3,7 8 M 16 4,98
100 108 109 190 24 235 22 65 12 128 8 3,7 8 M 20 6,85
114,3 115,5 134 6,70
125 133 134 220 26 270 25 68 12 155 8 4 8 M 22 9,42
139,7 141 162 9,20
150 159 161 250 28 300 25 75 12 182 10 5 8 M 22 12,4
168,3 170,5 192 12,0
175 193,7 195,5 280 28 330 25 75 15 218 10 5 12 M 22 13,6
200 219,1 221 310 30 360 25 80 16 244 10 5 12 M 22 16,8
250 267 269 370 32 425 30 88 18 292 12 5,5 12 M 27 23,8
273 275 298 23,3
300 323,9 326 430 34 485 30 92 18 352 12 6 16 M 27 30,5
350 355,6 357,5 490 38 555 33 100 20 398 12 6,4 16 M 30 47,6
368 370 44,5
400 406,4 408,5 550 40 620 36 110 20 452 12 7,3 16 M 33 62,1
419 421 58,3
450 457,2 459 600 40 670 36 115 20 492 12 8 20 M 33 67,8
500 508 510 660 44 730 36 125 20 558 12 8 20 M 33 88,8
600 609,6 611,5 770 46 845 39 125 20 660 12 8 20 M 36 x 3 114
700 711,2 715 875 46 960 42 125 20 760 12 10 24 M 39 x 3 138
800 812,8 817 990 50 1085 48 135 22 865 12 11 24 M 45 x 3 185
900 914,4 918 1090 54 1185 48 145 24 968 12 12 28 M 45 x 3 224
1000 1016 1020 1210 58 1320 56 155 24 1070 16 13 28 M 52 x 3 293

UNI 2283 PN25 Welding Neck Flange Industries and Applications
Widely used in the industries

  • Pumps, Valves, and vessels in manufacturing and food processing.
  • Pipe connections in industrial waterworks.
  • Heat exchangers and heating systems of all sizes.
  • Mining support.
  • Nuclear power systems.
  • Plumbing and mechanical systems.
  • Assemblies in the oil, gas, and petrochemical industries.
  • Fire protection systems.

UNI 2283 PN25 Welding Neck Flange Supply and Export Network
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