Most countries in Europe mainly install flanges according to DIN EN 1092-1 (stainless steel or forged steel flanges).
Similar to the ASME flange standard, the EN 1092-1 standard has basic flange forms. Such as:
- Weld neck flange
- Blind flange
- Threaded Flange
- Threaded flange (ISO7-1 thread instead of NPT)
- Connector Welding Flange
- Compressor connection flange
- Flanges for adapters such as flanges for coupling fittings.

DIN EN 1092-1.Standard Flange Specifications
Specifications of flanges made according to JIS B2220
JIS 5K. flange standard specification
JIS 5K. flange drawing
JIS 5K. Flange Specifications
JIS 10K. Flange Standard Specifications
JIS 10K. Flange Drawing
JIS 10K. Flange Specifications
JIS 16K. flange standard specification
JIS 16K. flange drawing
16K. JIS Flange Specifications
JIS 20K. flange standard specification
20K. JIS flange drawing
20K. JIS Flange Specification
Specifications of flanges made according to DIN. standards
DIN 2576 – PN6. flange standard specification
DIN PN6. flange drawing
DIN PN6. Flange Specification Table
DN | LINK DETAILS | OUTER DIAMETER OF THE WELDING | DIAMETER HOLE | Flange Thickness | BEVELED FACE | FOR THICK CONNECTORS | WELDING DIAMETER | LENGTH | DIAMETER OF WELDING NECKLINE | CONNECTOR ANGLE | Welding Neck Thickness | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Outer Diameter | Diameter of Bolt circle | Bolt Hole Diameter | Bolt | |||||||||||||||||||
D | K | L | Quantity | Size | A | B1 | B2 | C1 | C2 C3 |
C4 | E | F | G max | H1 | H2 | H3 | N1 | N2 | N3 | R1 | S | |
Flange type | ||||||||||||||||||||||
01, 02, 05, 11, 12, 13, 21 | 11 21b |
01 12 32 |
2 | 01 02 |
11 12 13 21 |
5 | 2 | 32 | 5 | 12 13 |
11 | 11 | 11 | 12 13 |
21 | 11 12 13 21 |
11 | |||||
10 | 75 | 50 | 11 | 4 | M10 | 17,2 | 18 | 21 | 12 | 12 | 12 | 3 | 10 | – | 20 | 28 | 6 | 26 | 25 | 20 | 4 | 1,8 |
15 | 80 | 55 | 11 | 4 | M10 | 21,3 | 22 | 25 | 12 | 12 | 12 | 3 | 10 | – | 20 | 30 | 6 | 30 | 30 | 26 | 4 | 2 |
20 | 90 | 65 | 11 | 4 | M10 | 26,9 | 27,5 | 31 | 14 | 14 | 14 | 4 | 10 | – | 24 | 32 | 6 | 38 | 40 | 34 | 4 | 2,3 |
25 | 100 | 75 | 11 | 4 | M10 | 33,7 | 34,5 | 38 | 14 | 14 | 14 | 4 | 10 | – | 24 | 35 | 6 | 42 | 50 | 44 | 4 | 2,6 |
32 | 120 | 90 | 14 | 4 | M12 | 42,4 | 43,5 | 46 | 16 | 14 | 14 | 5 | 10 | – | 26 | 35 | 6 | 55 | 60 | 54 | 6 | 2,6 |
40 | 130 | 100 | 14 | 4 | M12 | 48,3 | 49,5 | 53 | 16 | 14 | 14 | 5 | 10 | – | 26 | 38 | 7 | 62 | 70 | 64 | 6 | 2,6 |
50 | 140 | 110 | 14 | 4 | M12 | 60,3 | 61,5 | 65 | 16 | 14 | 14 | 5 | 12 | – | 28 | 38 | 8 | 74 | 80 | 74 | 6 | 2,9 |
65 | 160 | 130 | 14 | 4 | M12 | 76,1 | 77,5 | 81 | 16 | 14 | 14 | 6 | 12 | 55 | 32 | 38 | 9 | 88 | 100 | 94 | 6 | 2,9 |
80 | 190 | 150 | 18 | 4 | M16 | 88,9 | 90,5 | 94 | 18 | 16 | 16 | 6 | 12 | 70 | 34 | 42 | 10 | 102 | 110 | 110 | 8 | 3,2 |
100 | 210 | 170 | 18 | 4 | M16 | 114,3 | 116 | 120 | 18 | 16 | 16 | 6 | 14 | 90 | 40 | 45 | 10 | 130 | 130 | 130 | 8 | 3,6 |
125 | 240 | 200 | 18 | 8 | M16 | 139,7 | 141,5 | 145 | 20 | 18 | 18 | 6 | 14 | 115 | 44 | 48 | 10 | 155 | 160 | 160 | 8 | 4 |
150 | 265 | 225 | 18 | 8 | M16 | 168,3 | 170,5 | 174 | 20 | 18 | 18 | 6 | 14 | 140 | 44 | 48 | 12 | 184 | 185 | 182 | 10 | 4,5 |
200 | 320 | 280 | 18 | 8 | M16 | 219,1 | 221,5 | 226 | 22 | 20 | 20 | 6 | 16 | 190 | 44 | 55 | 15 | 236 | 240 | 238 | 10 | 6,3 |
250 | 375 | 335 | 18 | 12 | M16 | 273 | 276,5 | 281 | 24 | 22 | 22 | 8 | 18 | 235 | 44 | 60 | 15 | 290 | 295 | 284 | 12 | 6,3 |
300 | 440 | 395 | 22 | 12 | M20 | 323,9 | 327,5 | 333 | 24 | 22 | 22 | 8 | 18 | 285 | 44 | 62 | 15 | 342 | 355 | 342 | 12 | 7,1 |
350 | 490 | 445 | 22 | 12 | M20 | 355,6 | 359,5 | 365 | 26 | 22 | 22 | 8 | 18 | 330 | – | 62 | 15 | 385 | – | 392 | 12 | 7,1 |
400 | 540 | 495 | 22 | 16 | M20 | 406,4 | 411 | 416 | 28 | 22 | 22 | 8 | 20 | 380 | – | 65 | 15 | 438 | – | 442 | 12 | 7,1 |
DIN 2576 – PN10. flange standard specification
DIN PN10. flange drawing
DIN PN10. Flange Specification Table
DN | LINK DETAILS | The outer diameter of the welding neck | Diameter Hole | Flange Thickness | Beveled Face | Connector Thickness | Welding Face Diameter | LENGTH | DIAMETER OF WELDING NECKLINE | CONNECTOR ANGLE | Welding Neck Thickness | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Outside Diameter | Diameter of Bolt circle | Bolt Hole Diameter | Bolt | |||||||||||||||||||||
D | K | L | Quantity | Size | A | B1 | B2 | B3 | C1 | C2 | C3 | C4 | E | F | G max | H1 | H2 | H3 | N1 | N2 | N3 | R1 | S | |
Flange type | ||||||||||||||||||||||||
01, 02, 04, 05, 11, 12, 13, 21 | 11 21 34 |
01 12 32 |
2 | 4 | 01 02 04 |
11 12 13 |
21 | 5 | 02 04 |
32 34 |
5 | 12 13 |
11 14 |
11 14 |
11 14 |
12 13 |
21 | 11 12 13 21 |
11 34 |
|||||
10 to 40 | Use pressure class PN40 | |||||||||||||||||||||||
50 to 150 | Use pressure class PN16 | |||||||||||||||||||||||
200 | 340 | 295 | 22 | 8 | M20 | 219,1 | 221,5 | 226 | 240 | 24 | 24 | 24 | 24 | 6 | 20 | 190 | 44 | 62 | 16 | 234 | 246 | 246 | 10 | 6,3 |
250 | 395 | 350 | 22 | 12 | M20 | 273 | 276,5 | 281 | 294 | 26 | 26 | 26 | 26 | 8 | 22 | 235 | 46 | 68 | 16 | 292 | 298 | 298 | 12 | 6,3 |
300 | 445 | 400 | 22 | 12 | M20 | 323,9 | 327,5 | 333 | 348 | 26 | 26 | 26 | 26 | 8 | 22 | 285 | 46 | 68 | 16 | 342 | 350 | 348 | 12 | 7,1 |
350 | 505 | 460 | 22 | 16 | M20 | 355,6 | 359,5 | 365 | 400 | 28 | 26 | 26 | 26 | 8 | 22 | 330 | 53 | 68 | 16 | 385 | 400 | 408 | 12 | 7,1 |
400 | 565 | 515 | 26 | 16 | M24 | 406,4 | 411 | 416 | 450 | 32 | 26 | 26 | 26 | 8 | 24 | 380 | 57 | 72 | 16 | 440 | 456 | 456 | 12 | 7,1 |
450 | 615 | 565 | 26 | 20 | M24 | 457 | 462 | 467 | 498 | 36 | 28 | 28 | 28 | 8 | 24 | 425 | 63 | 72 | 16 | 488 | 502 | 502 | 12 | 7,1 |
500 | 670 | 620 | 26 | 20 | M24 | 508 | 513,5 | 519 | 550 | 38 | 28 | 28 | 28 | 8 | 26 | 475 | 67 | 75 | 16 | 542 | 559 | 559 | 12 | 7,1 |
600 | 780 | 725 | 30 | 20 | M27 | 610 | 616,5 | 622 | 650 | 42 | 28 | 34 | 34 | 8 | 26 | 575 | 75 | 80 | 18 | 642 | 658 | 658 | 12 | 7,1 |
700 | 895 | 840 | 30 | 24 | M27 | 711 | 30 | 34 | 38 | 670 | 80 | 18 | 746 | 772 | 12 | 8 | ||||||||
800 | 1015 | 950 | 33 | 24 | M30 | 813 | 32 | 36 | 42 | 770 | 90 | 18 | 850 | 876 | 12 | 8 | ||||||||
900 | 1115 | 1050 | 33 | 28 | M30 | 914 | 34 | 38 | 46 | 860 | 95 | 20 | 950 | 976 | 12 | 10 | ||||||||
1000 | 1230 | 1160 | 36 | 28 | M33 | 1016 | 34 | 38 | 52 | 960 | 95 | 20 | 1052 | 1080 | 16 | 10 | ||||||||
1200 | 1455 | 1380 | 39 | 32 | M36 | 1219 | 38 | 44 | 60 | 1160 | 115 | 25 | 1256 | 1292 | 16 | 11 | ||||||||
1400 | 1675 | 1590 | 42 | 36 | M39 | 1422 | 42 | 48 | 120 | 25 | 1460 | 1496 | 16 | 12 | ||||||||||
1600 | 1915 | 1820 | 48 | 40 | M45 | 1626 | 46 | 52 | 130 | 25 | 1666 | 1712 | 16 | 14 | ||||||||||
1800 | 2115 | 2020 | 48 | 44 | M45 | 1829 | 50 | 56 | 140 | 30 | 1868 | 1910 | 16 | 15 | ||||||||||
2000 | 2325 | 2230 | 48 | 48 | M45 | 2032 | 54 | 60 | 150 | 30 | 2072 | 2120 | 16 | 16 | ||||||||||
2200 | 2550 | 2440 | 56 | 52 | M52 | 2235 | 58 | 160 | 35 | 2275 | 18 | 18 | ||||||||||||
2400 | 2760 | 2650 | 56 | 56 | M52 | 2438 | 62 | 170 | 35 | 2478 | 18 | 20 | ||||||||||||
2600 | 2960 | 2850 | 56 | 60 | M52 | 2620 | 66 | 180 | 40 | 2680 | 18 | 22 | ||||||||||||
2800 | 3180 | 3070 | 56 | 64 | M52 | 2820 | 70 | 190 | 40 | 2882 | 18 | 22 | ||||||||||||
3000 | 3405 | 3290 | 62 | 68 | M56 | 3020 | 75 | 200 | 45 | 3085 | 18 | 24 |
DIN 2544 – PN16. flange standard specification
DIN PN16. flange drawing
DIN PN16. Flange Specification Table
DN | LINK DETAILS | The outer diameter of the welding neck | Diameter Hole | Flange Thickness | Beveled Face | Connector Thickness | Welding Face Diameter | LENGTH | DIAMETER OF WELDING NECKLINE | CONNECTOR ANGLE | Welding Neck Thickness | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Outside Diameter | Diameter of Bolt circle | Bolt Hole Diameter | Bolt | |||||||||||||||||||||
D | K | L | Quantity | Size | A | B1 | B2 | B3 | C1 | C2 | C3 | C4 | E | F | G max | H1 | H2 | H3 | N1 | N2 | N3 | R1 | S | |
Flange type | ||||||||||||||||||||||||
01, 02, 04, 05, 11, 12, 13, 21 | 11 21 34 |
01 12 32 |
2 | 4 | 01 02 04 |
11 12 13 |
21 | 5 | 02 04 |
32 34 |
5 | 12 13 |
11 14 |
11 14 |
11 14 |
12 13 |
21 | 11 12 13 21 |
11 34 |
|||||
10 to 40 | Use pressure class PN40 | |||||||||||||||||||||||
50 | 165 | 125 | 18 | 4 | M16 | 60,3 | 61,5 | 65 | 77 | 19 | 18 | 18 | 18 | 5 | 16 | 28 | 45 | 8 | 74 | 84 | 84 | 5 | 2,9 | |
65 | 185 | 145 | 18 | 8 | M16 | 76,1 | 77,5 | 81 | 96 | 20 | 18 | 18 | 18 | 6 | 16 | 55 | 32 | 45 | 10 | 92 | 104 | 104 | 6 | 2,9 |
80 | 200 | 160 | 18 | 8 | M16 | 88,9 | 90,5 | 94 | 108 | 20 | 20 | 20 | 20 | 6 | 16 | 70 | 34 | 50 | 10 | 105 | 118 | 120 | 6 | 3,2 |
100 | 220 | 180 | 18 | 8 | M16 | 114,3 | 116 | 120 | 134 | 22 | 20 | 20 | 20 | 6 | 18 | 90 | 40 | 52 | 12 | 131 | 140 | 140 | 8 | 3,6 |
125 | 250 | 210 | 18 | 8 | M16 | 139,7 | 141,5 | 145 | 162 | 22 | 22 | 22 | 22 | 6 | 18 | 115 | 44 | 55 | 12 | 156 | 168 | 170 | 8 | 4 |
150 | 285 | 240 | 22 | 8 | M20 | 168,3 | 170,5 | 174 | 188 | 24 | 22 | 22 | 22 | 6 | 20 | 140 | 44 | 55 | 12 | 184 | 195 | 190 | 10 | 4,5 |
200 | 340 | 295 | 22 | 12 | M20 | 219,1 | 221,5 | 226 | 240 | 26 | 24 | 24 | 24 | 6 | 20 | 190 | 44 | 62 | 16 | 235 | 246 | 246 | 10 | 6,3 |
250 | 405 | 355 | 26 | 12 | M24 | 273 | 276,5 | 281 | 294 | 29 | 26 | 26 | 26 | 8 | 22 | 235 | 46 | 70 | 16 | 292 | 298 | 296 | 12 | 6,3 |
300 | 460 | 410 | 26 | 12 | M24 | 323,9 | 327,5 | 33 | 348 | 32 | 28 | 28 | 28 | 8 | 24 | 285 | 46 | 78 | 16 | 344 | 350 | 350 | 12 | 7,1 |
350 | 520 | 470 | 26 | 16 | M24 | 355,6 | 359 | 365 | 400 | 35 | 30 | 30 | 30 | 8 | 26 | 330 | 57 | 82 | 16 | 390 | 400 | 410 | 12 | 8 |
400 | 580 | 525 | 30 | 16 | M27 | 406,4 | 411 | 416 | 454 | 38 | 32 | 32 | 32 | 8 | 28 | 380 | 63 | 85 | 16 | 445 | 456 | 458 | 12 | 8 |
450 | 640 | 585 | 30 | 20 | M27 | 457 | 462 | 467 | 500 | 42 | 40 | 40 | 40 | 8 | 30 | 425 | 68 | 87 | 16 | 490 | 502 | 516 | 12 | 8 |
500 | 715 | 650 | 33 | 20 | M30 | 508 | 513,5 | 510 | 556 | 46 | 44 | 44 | 44 | 8 | 32 | 475 | 73 | 90 | 16 | 548 | 559 | 576 | 12 | 8 |
600 | 840 | 770 | 36 | 20 | M33 | 610 | 616,5 | 622 | 660 | 52 | 54 | 54 | 54 | 8 | 32 | 575 | 83 | 95 | 18 | 652 | 658 | 690 | 12 | 8,8 |
700 | 910 | 840 | 36 | 24 | M33 | 711 | 36 | 42 | 48 | 670 | 83 | 100 | 18 | 755 | 760 | 760 | 12 | 8,8 | ||||||
800 | 1025 | 950 | 39 | 24 | M36 | 813 | 38 | 42 | 52 | 770 | 90 | 105 | 20 | 855 | 864 | 862 | 12 | 10 | ||||||
900 | 1125 | 1050 | 39 | 28 | M36 | 914 | 40 | 44 | 58 | 860 | 94 | 110 | 20 | 955 | 968 | 962 | 12 | 10 | ||||||
1000 | 1255 | 1170 | 42 | 28 | M39 | 1016 | 42 | 46 | 64 | 960 | 100 | 120 | 22 | 1058 | 1072 | 1070 | 16 | 10 | ||||||
1200 | 1485 | 1390 | 48 | 32 | M45 | 1219 | 48 | 52 | 76 | 1160 | 130 | 30 | 1262 | 1282 | 16 | 12,5 | ||||||||
1400 | 1685 | 1590 | 48 | 36 | M45 | 1422 | 52 | 58 | 1346 | 145 | 30 | 1465 | 1482 | 16 | 14,2 | |||||||||
1600 | 1930 | 1820 | 56 | 40 | M52 | 1626 | 58 | 64 | 1546 | 160 | 35 | 1668 | 1696 | 16 | 16 | |||||||||
1800 | 2130 | 2020 | 56 | 44 | M52 | 1829 | 62 | 68 | 1746 | 170 | 35 | 1870 | 1896 | 16 | 17,5 | |||||||||
2000 | 2345 | 2230 | 62 | 48 | M56 | 2032 | 66 | 70 | 1950 | 180 | 40 | 2072 | 2100 | 16 | 20 |
DIN 2544 – PN25. flange standard specification
DIN PN25. flange drawing
DIN PN25. Flange Specification Table
DN | LINK DETAILS | The outer diameter of the welding neck | Diameter Hole | Flange Thickness | Beveled Face | Connector Thickness | Welding Face Diameter | LENGTH | DIAMETER OF WELDING NECKLINE | CONNECTOR ANGLE | Welding Neck Thickness | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Outside Diameter | Diameter of Bolt circle | Bolt Hole Diameter | Bolt | |||||||||||||||||||||
D | K | L | Quantity | Size | A | B1 | B2 | B3 | C1 | C2 | C3 | C4 | E | F | G max | H1 | H2 | H3 | N1 | N2 | N3 | R1 | S | |
Flange type | ||||||||||||||||||||||||
01, 02, 04, 05, 11, 12, 13, 21 | 11 21 34 |
01 12 32 |
2 | 4 | 01 02 04 |
11 12 13 |
21 | 5 | 02 04 |
32 34 |
5 | 12 13 |
11 14 |
11 14 |
11 14 |
12 13 |
21 | 11 12 13 21 |
11 34 |
|||||
10 to 150 | Use pressure class PN40 | |||||||||||||||||||||||
200 | 360 | 310 | 26 | 12 | M24 | 219,1 | 221,5 | 226 | 250 | 32 | 30 | 30 | 30 | 6 | 26 | 190 | 52 | 80 | 16 | 244 | 256 | 252 | 10 | 6,3 |
250 | 425 | 370 | 30 | 12 | M27 | 273 | 276,5 | 281 | 302 | 35 | 32 | 32 | 32 | 8 | 26 | 235 | 60 | 88 | 18 | 298 | 310 | 304 | 12 | 7,1 |
300 | 485 | 430 | 30 | 16 | M27 | 323,9 | 327,5 | 333 | 356 | 38 | 34 | 34 | 34 | 8 | 28 | 285 | 67 | 92 | 18 | 352 | 364 | 364 | 12 | 8 |
350 | 555 | 490 | 33 | 16 | M30 | 355,6 | 359,5 | 365 | 408 | 42 | 38 | 38 | 38 | 8 | 32 | 332 | 72 | 100 | 20 | 398 | 418 | 418 | 12 | 8 |
400 | 620 | 550 | 36 | 16 | M33 | 406,4 | 411 | 416 | 462 | 46 | 40 | 40 | 40 | 8 | 34 | 380 | 78 | 110 | 20 | 452 | 472 | 472 | 12 | 8,8 |
450 | 670 | 600 | 36 | 20 | M33 | 457 | 462 | 467 | 510 | 50 | 46 | 46 | 46 | 8 | 36 | 425 | 84 | 110 | 20 | 500 | 520 | 520 | 12 | 8,8 |
500 | 730 | 660 | 36 | 20 | M33 | 508 | 513,5 | 519 | 568 | 56 | 48 | 48 | 48 | 8 | 38 | 475 | 90 | 125 | 20 | 558 | 580 | 580 | 12 | 10 |
600 | 845 | 770 | 39 | 20 | M36 | 610 | 616,5 | 622 | 670 | 68 | 58 | 58 | 58 | 8 | 40 | 575 | 100 | 125 | 20 | 660 | 684 | 684 | 12 | 11 |
700 | 960 | 875 | 42 | 24 | M39 | 711 | 46 | 50 | 125 | 20 | 760 | 780 | 12 | 12,5 | ||||||||||
800 | 1085 | 990 | 48 | 24 | M45 | 813 | 50 | 54 | 135 | 22 | 864 | 882 | 12 | 14,2 | ||||||||||
900 | 1185 | 1090 | 48 | 28 | M45 | 914 | 54 | 58 | 145 | 24 | 968 | 982 | 12 | 16 | ||||||||||
1000 | 1320 | 1210 | 56 | 28 | M52 | 1016 | 58 | 62 | 155 | 24 | 1070 | 1086 | 16 | 17,5 | ||||||||||
1200 | 1530 | 1420 | 56 | 32 | M52 | 1219 | 70 | 1296 | 18 | |||||||||||||||
1400 | 1755 | 1640 | 62 | 36 | M56 | 1422 | 76 | 1508 | 18 | |||||||||||||||
1600 | 1975 | 1860 | 62 | 40 | M56 | 1626 | 84 | 1726 | 20 | |||||||||||||||
1800 | 2195 | 2070 | 70 | 44 | M64 | 1829 | 90 | 1920 | 20 | |||||||||||||||
2000 | 2425 | 2300 | 70 | 48 | M64 | 2032 | 96 | 2150 | 20 |
DIN 2544 – PN40. flange standard specification
DIN PN40. flange drawing
DIN PN40. Flange Specification Table
DN | LINK DETAILS | OUTSIDE DIAMETER OF THE WELDING NECK | Diameter Hole | Flange Thickness | Beveled Face | Connector Thickness | Welding Face Diameter | LENGTH | DIAMETER OF WELDING NECKLINE | CONNECTOR ANGLE | Welding Neck Thickness | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Outside Diameter | Diameter of Bolt circle | Bolt Hole Diameter | Bolt | |||||||||||||||||||||
D | K | L | Quantity | Size | A | B1 | B2 | B3 | C1 | C2 | C3 | C4 | E | F | G max | H1 | H2 | H3 | N1 | N2 | N3 | R1 | S | |
Flange type | ||||||||||||||||||||||||
01, 02, 04, 05, 11, 12, 13, 21 | 11 21 34 |
01 12 32 |
2 | 4 | 01 02 04 |
11 12 13 |
21 | 5 | 02 04 |
32 34 |
5 | 12 13 |
11 14 |
11 14 |
11 14 |
12 13 |
21 | 11 12 13 21 |
11 34 |
|||||
10 | 90 | 60 | 14 | 4 | M12 | 17,2 | 18 | 21 | 31 | 14 | 16 | 16 | 16 | 3 | 12 | 22 | 35 | 6 | 28 | 30 | 28 | 4 | 1,8 | |
15 | 95 | 65 | 14 | 4 | M12 | 21,3 | 22 | 25 | 35 | 14 | 16 | 16 | 16 | 3 | 12 | 22 | 38 | 6 | 32 | 35 | 32 | 4 | 2 | |
20 | 105 | 75 | 14 | 4 | M12 | 26,9 | 27,5 | 31 | 42 | 16 | 18 | 18 | 18 | 4 | 14 | 26 | 40 | 6 | 40 | 45 | 40 | 4 | 2,3 | |
25 | 115 | 85 | 14 | 4 | M12 | 33,7 | 34,5 | 38 | 49 | 16 | 18 | 18 | 18 | 4 | 14 | 28 | 40 | 6 | 46 | 52 | 50 | 4 | 2,6 | |
32 | 140 | 100 | 18 | 4 | M16 | 42,4 | 43,5 | 47 | 59 | 18 | 18 | 18 | 18 | 5 | 14 | 30 | 42 | 6 | 56 | 60 | 60 | 6 | 2,6 | |
40 | 150 | 110 | 18 | 4 | M16 | 48,3 | 49,5 | 53 | 67 | 18 | 18 | 18 | 18 | 5 | 14 | 32 | 45 | 7 | 64 | 70 | 70 | 6 | 2,6 | |
50 | 165 | 125 | 18 | 4 | M16 | 60,3 | 61,5 | 65 | 77 | 20 | 20 | 20 | 20 | 5 | 16 | 34 | 48 | 8 | 75 | 84 | 84 | 6 | 2,9 | |
65 | 185 | 145 | 18 | 8 | M16 | 76,1 | 77,5 | 81 | 96 | 22 | 22 | 22 | 22 | 6 | 16 | 55 | 38 | 52 | 10 | 90 | 104 | 104 | 6 | 2,9 |
80 | 200 | 160 | 18 | 8 | M16 | 88,9 | 90,5 | 94 | 114 | 24 | 24 | 24 | 24 | 6 | 18 | 70 | 40 | 58 | 12 | 105 | 118 | 120 | 8 | 3,2 |
100 | 235 | 190 | 22 | 8 | M20 | 114,3 | 116 | 120 | 138 | 26 | 24 | 24 | 24 | 6 | 20 | 90 | 44 | 65 | 12 | 134 | 145 | 142 | 8 | 3,6 |
125 | 270 | 220 | 26 | 8 | M24 | 139,7 | 141,5 | 145 | 166 | 28 | 26 | 26 | 26 | 6 | 22 | 115 | 48 | 68 | 12 | 162 | 170 | 162 | 8 | 4 |
150 | 300 | 250 | 26 | 8 | M24 | 168,3 | 170,5 | 174 | 194 | 30 | 28 | 28 | 28 | 6 | 24 | 140 | 52 | 75 | 12 | 192 | 200 | 192 | 10 | 4,5 |
200 | 375 | 320 | 30 | 12 | M27 | 219,1 | 221,5 | 226 | 250 | 36 | 34 | 34 | 36 | 6 | 28 | 190 | 52 | 88 | 16 | 244 | 260 | 254 | 10 | 6,3 |
250 | 450 | 385 | 33 | 12 | M30 | 273 | 276,5 | 281 | 312 | 38 | 38 | 38 | 38 | 8 | 30 | 235 | 60 | 105 | 18 | 306 | 312 | 312 | 12 | 7,1 |
300 | 515 | 450 | 33 | 16 | M30 | 323,9 | 327,5 | 333 | 368 | 42 | 42 | 42 | 42 | 8 | 34 | 285 | 67 | 115 | 18 | 362 | 380 | 378 | 12 | 8 |
350 | 580 | 510 | 36 | 16 | M33 | 355,6 | 359,5 | 365 | 418 | 46 | 46 | 46 | 46 | 8 | 36 | 330 | 72 | 125 | 20 | 408 | 424 | 432 | 12 | 8,8 |
400 | 660 | 585 | 39 | 16 | M36 | 406,4 | 411 | 416 | 472 | 50 | 50 | 50 | 50 | 8 | 42 | 380 | 78 | 135 | 20 | 462 | 478 | 498 | 12 | 11 |
450 | 685 | 610 | 39 | 20 | M36 | 457 | 462 | 467 | 510 | 57 | 57 | 57 | 57 | 8 | 46 | 425 | 84 | 135 | 20 | 500 | 522 | 522 | 12 | 12,5 |
500 | 755 | 670 | 42 | 20 | M39 | 508 | 513,5 | 519 | 572 | 57 | 57 | 57 | 57 | 8 | 50 | 475 | 90 | 140 | 20 | 562 | 576 | 576 | 12 | 14,2 |
600 | 890 | 795 | 48 | 20 | M45 | 610 | 616,5 | 622 | 676 | 72 | 72 | 72 | 72 | 8 | 54 | 575 | 100 | 150 | 20 | 666 | 686 | 686 | 12 | 16 |
Specifications for flanges made according to ANSI
Standard Specifications of 150. Series ANSI Flanges
Standard Specifications of the 300. Series ANSI Flanges
???In addition to two lines, 150 & 300 are common goods, ANSI flanges also have other lines 400, 600, 900, 1500, and 2500. You can see more in the table below (Documents are quoted from the standard). ASME/ANSI B16.10/19).
SERIES | PIPE SIZE (INCH) |
OUTER DIAMETER OF THE FLANGE (MM) |
OUTDOOR DIAMETER OF THE PIPE (MM) |
NUMBER OF BOLTS | DIAMETER BOLTS (MM) |
BOLT CIRCLE (MM) |
---|---|---|---|---|---|---|
400 Series | 1/2 | 57,2 | 21,3 | 4,0 | 15,9 | 34,9 |
3/4 | 85,7 | 26,7 | 4,0 | 19,1 | 69,9 | |
1 | 79,4 | 33,5 | 4,0 | 19,1 | 63,5 | |
1-1 / 4 | 120,7 | 42,2 | 4,0 | 19,1 | 54,0 | |
1-1 / 2 | 149,2 | 48,3 | 4,0 | 22,2 | 88,9 | |
2 | 139,7 | 60,5 | 8,0 | 19,1 | 127,0 | |
2-1 / 2 | 165,1 | 73,2 | 8,0 | 22,2 | 104,8 | |
3 | 196,9 | 88,9 | 8,0 | 22,2 | 136,5 | |
3-1 / 2 | 228,6 | 101,6 | 8,0 | 25,4 | 171,5 | |
4 | 254,0 | 114,3 | 8,0 | 25,4 | 181,0 | |
5 | 279,4 | 141,2 | 8,0 | 25,4 | 222,3 | |
6 | 292,1 | 168,4 | 12,0 | 25,4 | 238,1 | |
số 8 | 381,0 | 219,2 | 12,0 | 22,2 | 330,2 | |
10 | 419,1 | 273,1 | 16,0 | 19,1 | 374,7 | |
12 | 495,3 | 323,9 | 16,0 | 15,9 | 412,8 | |
14 | 584,2 | 355,6 | 20,0 | 15,9 | 501,7 | |
16 | 622,3 | 406,4 | 20,0 | 12,7 | 546,1 | |
18 | 711,2 | 457,2 | 24,0 | 12,7 | 590,6 | |
20 | 749,3 | 508,0 | 24,0 | 9,5 | 685,8 | |
24 | 914,4 | 609,6 | 24,0 | 3,2 | 812,8 | |
600 Series | 1/2 | 57,2 | 21,3 | 4,0 | 15,9 | 34,9 |
3/4 | 85,7 | 26,7 | 4,0 | 19,1 | 69,9 | |
1 | 79,4 | 33,5 | 4,0 | 19,1 | 63,5 | |
1-1/4 | 120,7 | 42,2 | 4,0 | 19,1 | 54,0 | |
1-1/2 | 149,2 | 48,3 | 4,0 | 22,2 | 88,9 | |
2 | 139,7 | 60,5 | 8,0 | 19,1 | 127,0 | |
2-1/2 | 165,1 | 73,2 | 8,0 | 22,2 | 104,8 | |
3 | 196,9 | 88,9 | 8,0 | 22,2 | 136,5 | |
3-1/2 | 228,6 | 101,6 | 8,0 | 25,4 | 171,5 | |
4 | 235,0 | 114,3 | 8,0 | 25,4 | 190,5 | |
5 | 330,2 | 141,2 | 8,0 | 19,1 | 241,3 | |
6 | 355,6 | 168,4 | 12,0 | 19,1 | 266,7 | |
8 | 393,7 | 219,2 | 12,0 | 19,1 | 311,2 | |
10 | 508,0 | 273,1 | 16,0 | 15,9 | 431,8 | |
12 | 558,8 | 323,9 | 20,0 | 15,9 | 476,3 | |
14 | 565,2 | 355,6 | 20,0 | 12,7 | 489,0 | |
16 | 685,8 | 406,4 | 20,0 | 9,5 | 565,2 | |
18 | 730,3 | 457,2 | 20,0 | 6,4 | 616,0 | |
20 | 812,8 | 508,0 | 24,0 | 6,4 | 698,5 | |
24 | 939,8 | 609,6 | 24,0 | 50,8 | 838,2 | |
900 Series | 1/2 | 82,6 | 21,3 | 4,0 | 22,2 | 69,9 |
3/4 | 123,8 | 26,7 | 4,0 | 22,2 | 63,5 | |
1 | 104,8 | 33,5 | 4,0 | 25,4 | 101,6 | |
1-1/4 | 146,1 | 42,2 | 4,0 | 25,4 | 92,1 | |
1-1/2 | 177,8 | 48,3 | 4,0 | 22,2 | 79,4 | |
2 | 190,5 | 60,5 | 8,0 | 25,4 | 139,7 | |
2-1/2 | 212,7 | 73,2 | 8,0 | 22,2 | 165,1 | |
3 | 215,9 | 88,9 | 8,0 | 22,2 | 165,1 | |
4 | 266,7 | 114,3 | 8,0 | 19,1 | 222,3 | |
5 | 311,2 | 141,2 | 8,0 | 15,9 | 279,4 | |
6 | 381,0 | 168,4 | 12,0 | 19,1 | 292,1 | |
8 | 444,5 | 219,2 | 12,0 | 12,7 | 368,3 | |
10 | 520,7 | 273,1 | 16,0 | 12,7 | 444,5 | |
12 | 609,6 | 323,9 | 20,0 | 12,7 | 533,4 | |
14 | 628,7 | 355,6 | 20,0 | 9,5 | 558,8 | |
16 | 666,8 | 406,4 | 20,0 | 6,4 | 603,3 | |
18 | 787,4 | 457,2 | 20,0 | 50,8 | 685,8 | |
20 | 819,2 | 508,0 | 20,0 | 47,6 | 723,9 | |
24 | 1041,4 | 609,6 | 20,0 | 34,9 | 876,3 | |
ANSI B16.5 covers only sizes through 24″ | ||||||
26 | 1047,8 | 20,0 | 28,6 | 927,1 | ||
28 | 1168,4 | 20,0 | 73,0 | 1009,7 | ||
30 | 1206,5 | 20,0 | 73,0 | 1047,8 | ||
32 | 1276,4 | 20,0 | 66,7 | 1130,3 | ||
34 | 1397,0 | 20,0 | 60,3 | 1212,9 | ||
36 | 1435,1 | 20,0 | 60,3 | 1251,0 | ||
1500 Series | 1/2 | 82,6 | 21,3 | 4,0 | 22,2 | 69,9 |
3/4 | 123,8 | 26,7 | 4,0 | 22,2 | 63,5 | |
1 | 104,8 | 33,5 | 4,0 | 25,4 | 101,6 | |
1-1/4 | 146,1 | 42,2 | 4,0 | 25,4 | 92,1 | |
1-1/2 | 177,8 | 48,3 | 4,0 | 22,2 | 79,4 | |
2 | 190,5 | 60,5 | 8,0 | 25,4 | 139,7 | |
2-1/2 | 212,7 | 73,2 | 8,0 | 22,2 | 165,1 | |
3 | 241,3 | 88,9 | 8,0 | 19,1 | 203,2 | |
4 | 285,8 | 114,3 | 8,0 | 15,9 | 215,9 | |
5 | 336,6 | 141,2 | 8,0 | 9,5 | 266,7 | |
6 | 368,3 | 168,4 | 12,0 | 12,7 | 292,1 | |
8 | 482,6 | 219,2 | 12,0 | 6,4 | 368,3 | |
10 | 584,2 | 273,1 | 12,0 | 50,8 | 482,6 | |
12 | 647,7 | 323,9 | 16,0 | 47,6 | 546,1 | |
14 | 723,9 | 355,6 | 16,0 | 41,3 | 635,0 | |
16 | 800,1 | 406,4 | 16,0 | 34,9 | 666,8 | |
18 | 914,4 | 457,2 | 16,0 | 28,6 | 749,3 | |
20 | 946,2 | 508,0 | 16,0 | 73,0 | 793,8 | |
24 | 1168,4 | 609,6 | 16,0 | 60,3 | 990,6 | |
2500 Series | 1/2 | 120,7 | 21,3 | 4,0 | 22,2 | 63,5 |
3/4 | 114,3 | 26,7 | 4,0 | 22,2 | 57,2 | |
1 | 146,1 | 33,5 | 4,0 | 25,4 | 95,3 | |
1-1/4 | 171,5 | 42,2 | 4,0 | 22,2 | 123,8 | |
1-1/2 | 203,2 | 48,3 | 4,0 | 19,1 | 108,0 | |
2 | 222,3 | 60,5 | 8,0 | 22,2 | 133,4 | |
2-1/2 | 241,3 | 73,2 | 8,0 | 19,1 | 158,8 | |
3 | 304,8 | 88,9 | 8,0 | 15,9 | 228,6 | |
4 | 355,6 | 114,3 | 8,0 | 9,5 | 235,0 | |
5 | 393,7 | 141,2 | 8,0 | 3,2 | 285,8 | |
6 | 482,6 | 168,4 | 8,0 | 47,6 | 342,9 | |
8 | 514,4 | 219,2 | 12,0 | 47,6 | 425,5 | |
10 | 647,7 | 273,1 | 12,0 | 34,9 | 527,1 | |
12 | 762,0 | 323,9 | 12,0 | 28,6 | 600,1 |
Flange Standard Specification BS 4504 – EN 1092
BS 4504 PN6. flange standard specification
Specifications of BS 4504 PN10. flange standard
Specifications of BS 4504 PN16. flange standard
Specification of BS 4504 PN25. flange standard
Specifications of standard flange BS 4504 PN40
Application of EN 1092-1. standard flange
Most of the DIN flanges on the market are made of stainless steel and are used for microbiological technology.
In addition, it also has other applications such as:
- Industries, where flammable, volatile, toxic, or corrosive substances are being handled, have special protection needs.
- Treatment plant or power station.
- Undersea or blast furnace oil and gas pipelines, cold and cryogenic work, gas injection, high temperature, and nuclear applications.
- Used in factories applying microbiological technology, …

Hopefully, the knowledge that Tiger Steel provides above will be useful to you. If you need to buy steel flanges, you can contact Tiger Steel. In addition to welding flange products,
Tiger Steel trades in black steel pipes, galvanized steel pipes, black square steels, galvanized Hoa Phat, SeAH, …; cast steel pipe, large diameter steel pipe. Steel pipe fittings of all kinds, fire protection accessories, …