Steel Flanges,Pipes,Pipe Fittings

DIN 2635 PN40 FLANGE WELD NECK RF
din2631pn6
din_wn_flange
Dimensions & Approximate Masses DIN 2635 PN40 Flange WN
Germany standard flange DIN 2635 welding neck flanges; nominal pressure 40
Vorschweißflansche DIN 2635 Nenndruck 40
Brides à souder à collerette DIN 2635: pression nominale 40
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 32 295 82 218 5,6 10 15 260 3 12 M 27 30 18,2
200 219,1 – 375 34 320 88 244 6,3 10 16 285 3 12 M 27 30 21,5
250 – 267 450 38 385 105 298 7,1 12 18 345 3 12 M 30 33 34,9
273 – 306
300 323,9 – 515 42 450 115 362 8 12 18 410 4 16 M 30 33 49,7
350 355,6 – 580 46 510 125 408 8,8 12 20 465 4 16 M 33 36 68,1
– 368
400 406,4 – 660 50 585 135 462 11 12 20 535 4 16 M 36 39 96,5
– 419
(450) 457 – 685 50 610 135 500 12,5 12 20 560 4 20 M 36 39 99,7
500 508 – 755 52 670 140 562 14,2 12 20 615 4 20 M 39 42 117

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