Flange connection sizes PN and ASA
D – outer flange diameter
K – bolt circle diameter
d1 – mating surface diameter
L – bolt hole diameter
PN flange sizes in accordance with EN 1092-1. ASA flange sizes in accordance with ASME/ANSI B16.5:1996.
nominal dimensions | PN6 | PN10/16 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
[mm] | [inch] | D | K | d1 | L | no. of bolts | thread | D | K | d1 | L | no. of bolts | thread |
15 | 1/2 | 80 | 55 | 40 | 11 | 4 | M10 | 95 | 65 | 45 | 14 | 4 | M12 |
20 | 3/4 | 90 | 65 | 50 | 11 | 4 | M10 | 105 | 75 | 58 | 14 | 4 | M12 |
25 | 1 | 100 | 75 | 60 | 11 | 4 | M10 | 115 | 85 | 68 | 14 | 4 | M12 |
32 | 1.1/4 | 120 | 90 | 70 | 14 | 4 | M12 | 140 | 100 | 78 | 18 | 4 | M16 |
40 | 1.1/2 | 130 | 100 | 80 | 14 | 4 | M12 | 150 | 110 | 88 | 18 | 4 | M16 |
50 | 2 | 140 | 110 | 90 | 14 | 4 | M12 | 165 | 125 | 102 | 18 | 4 | M16 |
65 | 2.1/2 | 160 | 130 | 110 | 14 | 4 | M12 | 185 | 145 | 122 | 18 | 8 | M16 |
80 | 3 | 190 | 150 | 128 | 18 | 4 | M16 | 200 | 160 | 138 | 18 | 8 | M16 |
100 | 4 | 210 | 170 | 148 | 18 | 4 | M16 | 220 | 180 | 158 | 18 | 8 | M16 |
125 | 5 | 240 | 200 | 178 | 18 | 8 | M16 | 250 | 210 | 188 | 18 | 8 | M16 |
150 | 6 | 265 | 225 | 202 | 18 | 8 | M16 | 285 | 240 | 212 | 22 | 8 | M20 |
200 | 8 | 320 | 280 | 258 | 18 | 8 | M16 | 340 | 295 | 268 | 22 | 12 | M20 |
250 | 10 | 375 | 335 | 312 | 18 | 12 | M16 | 395/405 | 350/355 | 320 | 22/26 | 12 | M20/M24 |
nominal dimensions | PN25 | PN40 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
[mm] | [inch] | D | K | d1 | L | no. of bolts | thread | D | K | d1 | L | no. of bolts | thread |
15 | 1/2 | 95 | 65 | 45 | 14 | 4 | M12 | 95 | 65 | 45 | 14 | 4 | M12 |
20 | 3/4 | 105 | 75 | 58 | 14 | 4 | M12 | 105 | 75 | 58 | 14 | 4 | M12 |
25 | 1 | 115 | 85 | 68 | 14 | 4 | M12 | 115 | 85 | 68 | 14 | 4 | M12 |
32 | 1.1/4 | 140 | 100 | 78 | 18 | 4 | M16 | 140 | 100 | 78 | 18 | 4 | M16 |
40 | 1.1/2 | 150 | 110 | 88 | 18 | 4 | M16 | 150 | 110 | 88 | 18 | 4 | M16 |
50 | 2 | 165 | 125 | 102 | 18 | 4 | M16 | 165 | 125 | 102 | 18 | 4 | M16 |
65 | 2.1/2 | 185 | 145 | 122 | 18 | 8 | M16 | 185 | 145 | 122 | 18 | 8 | M16 |
80 | 3 | 200 | 160 | 138 | 18 | 8 | M16 | 200 | 160 | 138 | 18 | 8 | M16 |
100 | 4 | 235 | 190 | 162 | 22 | 8 | M20 | 235 | 190 | 162 | 22 | 8 | M20 |
125 | 5 | 270 | 220 | 188 | 26 | 8 | M24 | 270 | 220 | 188 | 26 | 8 | M24 |
150 | 6 | 300 | 250 | 218 | 26 | 8 | M24 | 300 | 250 | 218 | 26 | 8 | M24 |
200 | 8 | 360 | 310 | 278 | 26 | 12 | M24 | 375 | 320 | 285 | 30 | 12 | M27 |
250 | 10 | 425 | 370 | 335 | 30 | 12 | M27 | 450 | 385 | 345 | 33 | 12 | M3 |