Steel Flanges,Pipes,Pipe Fittings

DIN 2634 PN25 FLANGE WELD NECK RF
din2631pn6
din_wn_flange
Dimensions & Approximate Masses DIN 2634 PN25 Flange WN
Germany standard flange DIN 2634 welding neck flanges; nominal pressure 25
Vorschweißflansche DIN 2634 Nenndruck 25
Brides à souder à collerette DIN 2634: pression nominale 25
Pipe Flange Neck Raised face Screws Weight
(7,85 Kg/dm3)
Rated d1 D b k h1 d3 s r h2 d4 f Holes Thread d2 Kg
Diameter ISO Series DIN Series
15 – 20 95 16 65 38 30 2 4 6 45 2 4 M 12 14 0,746
21,3 – 32
20 – 25 105 18 75 40 38 2,3 4 6 58 2 4 M 12 14 1,06
26,9 – 40
25 – 30 115 18 85 40 42 2,6 4 6 68 2 4 M 12 14 1,29
33,7 – 45
32 – 38 140 18 100 42 52 2,6 6 6 78 2 4 M 16 18 1,88
42,4 – 56
40 – 44,5 150 18 110 45 60 2,6 6 7 88 3 4 M 16 18 2,33
48,3 – 64
50 – 57 165 20 125 48 72 2,9 6 8 102 3 4 M 16 18 2,82
60,3 – 75
65 76,1 – 185 22 145 52 90 2,9 6 10 122 3 8 M 16 18 3,74
80 88,9 – 200 24 160 58 105 3,2 8 12 138 3 8 M 16 18 4,75
100 – 108 235 24 190 65 128 3,6 8 12 162 3 8 M 20 22 6,52
114,3 – 134
125 – 133 270 26 220 68 155 4 8 12 188 3 8 M 24 26 9,07
139,7 – 162
150 – 159 300 28 250 75 182 4,5 10 12 218 3 8 M 24 26 11,8
168,3 – 192
(175) 193,7 – 350 28 280 75 218 5,6 10 15 248 3 12 M 24 26 13,4
200 219,1 – 360 30 310 80 244 6,3 10 16 278 3 12 M 24 26 17
250 – 267 425 32 370 88 292 7,1 12 18 335 3 12 M 27 30 24,4
273 – 298
300 323,9 – 485 34 430 92 352 8 12 18 395 4 16 M 27 30 31,2
350 355,6 – 555 38 490 100 398 8 12 20 450 4 16 M 30 33 47,2
– 368 44,2
400 406,4 – 620 40 550 110 452 8,8 12 20 505 4 16 M 33 36 61,7
– 419 57,9
(450) 457 – 670 42 600 110 500 8,8 12 20 550 4 20 M 33 36 71,9
500 508 – 730 44 660 125 558 10 12 20 615 4 20 M 33 36 89,6
600 610 – 845 46 770 125 660 11 12 20 720 5 20 M 36 39 104
700 711 – 960 46 875 125 760 13 20 24 820 5 24 M 39 42 136
800 813 – 1085 50 990 135 865 14 22 24 930 5 24 M 45 48 186
900 914 – 1185 54 1090 145 968 16 24 28 1030 5 28 M 45 48 236
1000 1016 – 1320 58 1210 155 1070 18 24 28 1140 5 28 M 52 56 307

NOTE:
1. Facing according to DIN 2526
Flat face:
Form A, Face without any requirements
Form B, Face Rz=160, machined (not smoother than 40µm)
Raised Face:
Form C, Face Rz=160, machined (not smoother than 40µm)
Form D, Face Rz=40, machined
Form E, Face Rz=16, machined
2. Tongue and groove according to DIN 2512
Form F, Tongue
Form N, Groove
3. Male and Female according to DIN 2513, DIN 2514
Form V13, V14, Male
Form R13, R16, Female
4. Chemfering for diaphragm-weld packings, PN64-PN400, according to DIN 2695
5. Facing for lens-shaped joints, PN64-PN400, according to DIN 2696

Wled Neck Flange

DIN Weld Neck Flange