JIS B2220 10k Flange
JIS B2220 10k Flange
The JIS B2220 10K flange is a high-performance flange designed according to the Japanese Industrial Standards (JIS) with a pressure rating of 10K. This type of flange is widely used in piping systems across industries due to its reliability and adaptability.
JIS B2220 10k Flange Dimensions (in mm)
Nominal Dia. of Flange | Outside Dia. of Flange D | Sectional Dimensions of flange | Nominal Bolt Size | Welding | ||||||||||||
| Dia. of Bolt Circle C | Dia. Of raised Face g | Inside Dia. Of Flange do | Outside Dia. Of Applicable pipe | t | T | Dia. of Hub | Radius r | Raised Face f | Hole Dia. H | Number of Bolt Holes | ||||||
| a | b | W1 | W2 | |||||||||||||
| 10 | 90 | 65 | 46 | 17.8 | 17.3 | 12 | – | – | – | – | 1 | 15 | 4 | M12 | 5 | 2.5 |
| 15 | 95 | 70 | 51 | 22.2 | 21.7 | 12 | – | – | – | – | 1 | 15 | 4 | M12 | 5 | 3 |
| 20 | 100 | 75 | 56 | 27.7 | 27.2 | 14 | – | – | – | – | 1 | 15 | 4 | M12 | 5 | 3 |
| 25 | 125 | 90 | 67 | 34.5 | 34 | 14 | – | – | – | – | 1 | 19 | 4 | M16 | 5 | 3 |
| 32 | 135 | 100 | 76 | 43.2 | 42.7 | 16 | – | – | – | – | 2 | 19 | 4 | M16 | 6 | 3 |
| 40 | 140 | 105 | 81 | 49.1 | 48.6 | 16 | – | – | – | – | 2 | 19 | 4 | M16 | 6 | 3 |
| 50 | 155 | 120 | 96 | 61.1 | 60.5 | 16 | – | – | – | – | 2 | 19 | 4 | M16 | 6 | 3 |
| 65 | 175 | 140 | 116 | 77.1 | 76.3 | 18 | – | – | – | – | 2 | 19 | 4 | M16 | 6.5 | 4 |
| 80 | 185 | 150 | 126 | 90 | 89.1 | 18 | – | – | – | – | 2 | 19 | 8 | M16 | 6.5 | 4 |
| -90 | 195 | 160 | 136 | 102.6 | 101.6 | 18 | – | – | – | – | 2 | 19 | 8 | M16 | 6.5 | 4 |
| 100 | 210 | 175 | 151 | 115.4 | 114.3 | 18 | – | – | – | – | 2 | 19 | 8 | M16 | 7 | 4 |
| 125 | 250 | 210 | 182 | 141.2 | 139.8 | 20 | – | – | – | – | 2 | 23 | 8 | M20 | 7.5 | 4 |
| 150 | 280 | 240 | 212 | 166.6 | 165.2 | 22 | – | – | – | – | 2 | 23 | 8 | M20 | 8 | 5 |
| -175 | 305 | 265 | 237 | 192.1 | 190.7 | 22 | – | – | – | – | 2 | 23 | 12 | M20 | 9 | 5 |
| 200 | 330 | 290 | 262 | 218 | 216.3 | 22 | – | – | – | – | 2 | 23 | 12 | M20 | 9 | 6 |
| -255 | 350 | 310 | 282 | 243.7 | 241.8 | 22 | – | – | – | – | 2 | 23 | 12 | M20 | 9 | 6 |
| 250 | 400 | 355 | 324 | 269.5 | 267.4 | 24 | 36 | 288 | 292 | 6 | 2 | 25 | 12 | M22 | 10 | 6 |
| 300 | 445 | 400 | 368 | 321 | 318.5 | 24 | 38 | 340 | 346 | 6 | 3 | 25 | 16 | M22 | 10 | 6 |
| 350 | 490 | 445 | 413 | 358.1 | 355.6 | 26 | 42 | 380 | 386 | 6 | 3 | 25 | 16 | M22 | 12 | 7 |
| 400 | 560 | 510 | 475 | 409 | 406.4 | 28 | 44 | 436 | 442 | 6 | 3 | 27 | 16 | M24 | 12 | 7 |
| 450 | 620 | 565 | 530 | 460 | 457.2 | 30 | 48 | 496 | 502 | 6 | 3 | 27 | 20 | M24 | 14 | 8 |
| 500 | 675 | 620 | 585 | 511 | 508 | 30 | 48 | 548 | 554 | 6 | 3 | 27 | 20 | M24 | 14 | 8 |
| 550 | 745 | 680 | 640 | 562 | 558.8 | 32 | 52 | 604 | 610 | 6 | 3 | 33 | 20 | M30 | 15 | 9 |
| 600 | 795 | 730 | 690 | 613 | 609.6 | 32 | 52 | 656 | 662 | 6 | 3 | 33 | 24 | M30 | 16 | 10 |
| 650 | 845 | 780 | 740 | 664 | 660.4 | 34 | 56 | 706 | 712 | 6 | 3 | 33 | 24 | M30 | 16 | 10 |
| 700 | 905 | 840 | 800 | 715 | 711.2 | 34 | 58 | 762 | 770 | 6 | 3 | 33 | 24 | M30 | 17 | 10 |
| 750 | 970 | 900 | 855 | 766 | 762 | 36 | 62 | 816 | 824 | 6 | 3 | 33 | 24 | M30 | 18 | 11 |
| 800 | 1020 | 950 | 905 | 817 | 812.8 | 36 | 64 | 868 | 876 | 6 | 3 | 33 | 28 | M30 | 19 | 12 |
| -850 | 1070 | 1000 | 955 | 868 | 863.6 | 36 | 66 | 920 | 928 | 6 | 3 | 33 | 28 | M30 | 19 | 12 |
| 900 | 1120 | 1050 | 1005 | 919 | 914.4 | 38 | 70 | 971 | 979 | 6 | 3 | 33 | 28 | M30 | 22 | 14 |
| 1000 | 1235 | 1160 | 1110 | 1021 | 1016 | 40 | 74 | 1073 | 1081 | 6 | 3 | 39 | 28 | M36 | 22 | 14 |
| *(1100) | 1345 | 1270 | 1220 | 1123 | 1117.6 | 42 | – | – | – | – | 3 | 39 | 28 | M36 | ||
| *1200 | 1465 | 1380 | 1325 | 1225 | 1219.2 | 44 | – | – | – | – | 3 | 39 | 32 | M36 | ||
| *1350 | 1630 | 1540 | 1480 | – | 1371.6 | 48 | – | – | – | – | 3 | 45 | 36 | M42 | ||
| *1500 | 1795 | 1700 | 1635 | – | 1524 | 50 | – | – | – | – | 3 | 45 | 40 | M42 | ||
Key Specifications
- Pressure Rating: 10K (10 kgf/cm² or 1.0 MPa)
- Material Options: SS400, SF440, SUS304, SUS316, etc.
- Nominal Sizes: Ranges from 10A (½”) to 1500A (60”)
- Flange Types:
- Slip-on Flange (SO)
- Weld Neck Flange (WN)
- Blind Flange (BL)
- Socket Weld Flange (SW)
- Lap Joint Flange (LJ)
Applications
- Oil & Gas Pipelines
- Petrochemical Plants
- Water Treatment Facilities
- Power Generation Systems
- Shipbuilding and Marine Engineering
