Details of ductile iron bitument flange
1) DN: 80-2000
2) Pressure class:PN12,PN16 ,PN25
3) Type: slip on, welding neck flange, blind flange, plate, socket welding flange, threaded flange etc.
4) Surface treatment: according to customer's
5) Material: ductile iron ,cast iron ,steel
6) Standards: ISO,DIN ,BS etc.
7) Packing:wooden cases or wooden pallet
8) High quantity and have more export experience
Specifications:
DN | D1 | D2 | D3 | DE | c | S | R | Bolts | ||
d | size | n | ||||||||
80 | 200 | 160 | 132 | 98 | 19 | 15 | 6 | 19 | M16 | 8 |
100 | 220 | 180 | 156 | 118 | 19 | 15 | 6 | 19 | M16 | 8 |
150 | 285 | 240 | 211 | 170 | 19 | 15 | 8 | 23 | M20 | 8 |
200 | 340 | 295 | 266 | 222 | 20 | 16 | 8 | 23 | M20 | 8 |
250 | 400 | 350 | 319 | 274 | 22 | 17.5 | 10 | 23 | M20 | 12 |
300 | 455 | 400 | 370 | 326 | 24.5 | 19.5 | 10 | 23 | M20 | 12 |
350 | 505 | 460 | 429 | 378 | 24.5 | 19.5 | 10 | 23 | M20 | 16 |
400 | 565 | 515 | 480 | 429 | 24.5 | 19.5 | 10 | 28 | M24 | 16 |
450 | 615 | 565 | 530 | 480 | 24.5 | 20.5 | 12 | 28 | M24 | 20 |
500 | 670 | 620 | 582 | 532 | 26.5 | 21 | 12 | 28 | M24 | 20 |
600 | 780 | 725 | 682 | 635 | 30 | 24 | 12 | 31 | M27 | 20 |
700 | 895 | 840 | 794 | 738 | 32.5 | 23 | 16 | 31 | M27 | 24 |
800 | 1015 | 950 | 901 | 842 | 35 | 24.5 | 16 | 34 | M30 | 24 |
900 | 1115 | 1050 | 1001 | 945 | 37.5 | 26.5 | 16 | 34 | M30 | 28 |
1000 | 1230 | 1160 | 1112 | 1048 | 40 | 28 | 16 | 37 | M33 | 28 |
1100 | 1340 | 1270 | 1218 | 1152 | 42.5 | 30 | 20 | 37 | M33 | 32 |
1200 | 1455 | 1380 | 1328 | 1255 | 45 | 31.5 | 20 | 40 | M36 | 32 |
1400 | 1675 | 1590 | 1530 | 1462 | 46 | 32 | 20 | 43 | M39 | 36 |
1500 | 1785 | 1700 | 1640 | 1565 | 47.5 | 33 | 20 | 43 | M39 | 36 |
1600 | 1915 | 1820 | 1750 | 1668 | 49 | 34.5 | 20 | 49 | M45 | 40 |
1800 | 2115 | 2020 | 1950 | 1875 | 52 | 36.5 | 20 | 49 | M45 | 44 |
2000 | 2325 | 2230 | 2150 | 2082 | 55 | 38.5 | 20 | 49 | M45 | 48 |




