DIN Standardized Flanges

DIN Flat Flanges

DIN - the German Institute for Standardization, is a private organization providing standardization services in Germany.

DIN represents German national interests in Europe and throughout the world. The DIN EN 2527, 25.., 2630, 26.. series of standards cover pressure-temperature ratings, materials, dimensions, tolerances, marking for pipelines for fluid in liquid or gaseous condition.

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Flat Flanges
DIN 2573 PN 6

flat flanges din 2573 pn 6
Flat Flanges DIN 2573 PN 6 Flat flanges
Standard DIN 2573
Core Material Carbon steel and stainless steel
Pressure PN 6
Connecting Finish Stock finish, spiral serration (or phonographic), concentric serration and smooth surface
flat flanges din 2573 pn 6
DN
mm
inch D
mm
b
mm
K
mm
d1
mm
d5
mm
d2
mm
Thread
Holes
Wgt
kg
10 3/8 75 12 50 14 14.5 11 4×M10 0.36
15 1/2 80 12 55 20 21 11 4×M10 0.41
20 3/4 90 14 65 25 26 11 4×M10 0.60
25 1 100 14 75 30 31 11 4×M10 0.74
32 120 16 90 38 39 14 4×M12 1.19
40 130 16 100 44.5 45.5 14 4×M12 1.39
50 2 140 16 110 57 58.1 14 4×M12 1.53
100 4 210 18 170 108 109.6 18 4×M16 3.46
125 5 240 20 200 133 134.8 18 8×M16 4.60
150 6 265 20 225 159 161.1 18 8×M16 5.22
250 10 375 24 335 267 270.2 18 12×M16 9.61
350 14 490 26 445 368 372.2 22 12×M20 15.6
400 16 540 28 495 419 423.7 22 16×M20 18.4

Flat Flanges
DIN 2576 PN10

Flat Flanges DIN 2576 PN 10 Flat flanges
Standard DIN 2576
Core Material Carbon steel and stainless steel
Pressure PN 10
Connecting Finish Stock finish, spiral serration (or phonographic), concentric serration and smooth surface
flat flanges din 2576 pn 10
DN
mm
inch D
mm
b
mm
K
mm
d1
mm
d5
mm
d2
mm
Thread
Holes
Wgt
kg
10 3/8 90 14 60 14 14.5 14  4×M12  0.61 
15 1/2 95 14 65 20 21 14  4×M12  0.68 
20 3/4 105 16 75 25 26 14  4×M12  0.75 
25 1 115 16 85 30 31 14  4×M12  1.14 
32 140 16 100 38 39 18  4×M16  1.66 
40 150 16 110 44.5 45.5 18  4×M16  1.89 
50 2 165 18 125 57 58.1 18  4×M16  2.51 
100 4 220 20 180 108 109.6 18  8×M16  4.20 
125 5 250 22 210 133 134.8 18  8×M16  5.71 
150 6 285 22 240 159 161.1 22  8×M20  6.72 
250 10 395 26 350 267 270.2 22 12×M20  12.5 
350 14 505 28 460 368 372.2 22 16×M20  19.0 
400 16 565 32 515 419 423.7 26 16×M24  25.9