Welwin Pipes & Fittings is a dynamic group, which was established over a decade ago to cater to growing demands of
JIS B 2220 10k Flanges standards in Weld Neck Flanges, Blind Flanges, Threaded Flanges, Loose or Lap Joint Flanges in all materials like Stainless Steel
, Carbon Steel & High Nickel Alloys. We Manufacture, Export and Supply Flanges which meets with national
and international quality standards and producing base which owns equipments conforming to international technical level
and is well equipped with a whole set of advanced plasma refining equipments.
We export our high quality JIS B 2220 10k Flanges to Kuwait, Egypt and Qatar.
Size : DN15 - DN2000
Standard: JIS B 2220
Type: Slip On Flanges, Slip On Hub Flanges, Blind Flanges
Process: Forged
Pressure grade: 2K, 5K,10K,16K,20K,30K,40K
| Nominal | Outside | Inside | Outside | Sectional Dimensions of Flange | Bolt Hole | Nor | Approx. | ||||||||||
| Dia. of | Dia. of | Dia.of | Dia. of | t | T | Dia. of Hub | r | Dia. of | Dia. of | Bolt. | No. | Hole | Bolt | Weight | |||
| Flange | Steel | Flange | Flange | a | b | Face | Rai- sed Face |
Circle | of Bolt | Dia. | Size | (kg) | |||||
| Pipe | do | D | f | g | Dia | Holes | h | SOP | BL | SOH | |||||||
| 10 | 17.3 | 17.8 | 90.0 | 12 | - | - | - | - | 1 | 46 | 65 | 4 | 15 | M12 | 0.51 | 0.53 | - |
| 15 | 21.7 | 22.2 | 95.0 | 12 | - | - | - | - | 1 | 51 | 70 | 4 | 15 | M12 | 0.56 | 0.60 | - |
| 20 | 27.2 | 27.7 | 100.0 | 14 | - | - | - | - | 1 | 56 | 75 | 4 | 15 | M12 | 0.72 | 0.79 | - |
| 25 | 34.0 | 34.5 | 125.0 | 14 | - | - | - | - | 1 | 67 | 90 | 4 | 19 | M16 | 1.12 | 1.22 | - |
| 32 | 42.7 | 43.2 | 135.0 | 16 | - | - | - | - | 2 | 76 | 100 | 4 | 19 | M16 | 1.47 | 1.66 | - |
| 40 | 48.6 | 49.1 | 140.0 | 16 | - | - | - | - | 2 | 81 | 105 | 4 | 19 | M16 | 1.55 | 1.79 | - |
| 50 | 60.5 | 61.1 | 155.0 | 16 | - | - | - | - | 2 | 96 | 120 | 4 | 19 | M16 | 1.86 | 2.23 | - |
| 65 | 76.3 | 77.1 | 175.0 | 18 | - | - | - | - | 2 | 116 | 140 | 4 | 19 | M16 | 2.58 | 3.24 | - |
| 80 | 89.1 | 90.0 | 185.0 | 18 | - | - | - | - | 2 | 126 | 150 | 8 | 19 | M16 | 2.58 | 3.48 | - |
| (90) | 101.6 | 102.6 | 195.0 | 18 | - | - | - | - | 2 | 136 | 160 | 8 | 19 | M16 | 2.73 | 3.90 | - |
| 100 | 114.3 | 115.4 | 210.0 | 18 | - | - | - | - | 2 | 151 | 175 | 8 | 19 | M16 | 3.10 | 4.57 | - |
| 125 | 139.6 | 141.2 | 250.0 | 20 | - | - | - | - | 2 | 182 | 210 | 8 | 23 | M20 | 4.73 | 7.18 | - |
| 150 | 165.2 | 166.6 | 280.0 | 22 | - | - | - | - | 2 | 212 | 240 | 8 | 23 | M20 | 6.30 | 10.10 | - |
| (175) | 190.7 | 192.1 | 305.0 | 22 | - | - | - | - | 2 | 237 | 265 | 12 | 23 | M20 | 6.75 | 11.80 | - |
| 200 | 216.3 | 218.0 | 330.0 | 22 | - | - | - | - | 2 | 262 | 290 | 12 | 23 | M20 | 7.46 | 8.00 | - |
| (225) | 241.8 | 243.7 | 350.0 | 22 | - | - | - | - | 2 | 282 | 310 | 12 | 23 | M20 | 7.70 | 15.80 | - |
| 250 | 267.4 | 269.5 | 400.0 | 24 | 36 | 288 | 292 | 6 | 2 | 324 | 355 | 12 | 25 | M22 | 11.80 | 22.60 | 12.70 |
| 300 | 318.5 | 321.0 | 445.0 | 24 | 38 | 340 | 346 | 6 | 3 | 368 | 400 | 16 | 25 | M22 | 12.60 | 27.80 | 13.80 |
| 350 | 355.6 | 358.1 | 490.0 | 26 | 42 | 380 | 386 | 6 | 3 | 413 | 445 | 16 | 25 | M22 | 16.30 | 36.90 | 18.20 |
| 400 | 406.4 | 409.0 | 560.0 | 28 | 44 | 436 | 442 | 6 | 3 | 475 | 510 | 16 | 27 | M24 | 23.20 | 52.10 | 25.80 |
| 450 | 457.2 | 460.0 | 620.0 | 30 | 48 | 496 | 502 | 6 | 3 | 530 | 565 | 20 | 27 | M24 | 29.30 | 68.40 | 33.40 |
| 500 | 508.0 | 511.0 | 675.0 | 30 | 48 | 548 | 554 | 6 | 3 | 585 | 620 | 20 | 27 | M24 | 33.30 | 81.60 | 38.00 |
| (550) | 558.8 | 562.0 | 745.0 | 32(34) | 52 | 604 | 610 | 6 | 3 | 640 | 680 | 20 | 27 | M30 | 42.90 | 105(112) | 49.40 |
| 600 | 609.6 | 613.0 | 795.0 | 32(36) | 52 | 656 | 662 | 6 | 3 | 690 | 730 | 24 | 33 | M30 | 45.40 | 120(134) | 52.60 |
| (650) | 660.4 | 664.0 | 845.0 | 34(38) | 56 | 706 | 712 | 6 | 3 | 740 | 780 | 24 | 33 | M30 | 51.80 | 144(161) | 60.20 |
| 700 | 711.2 | 715.0 | 905.0 | 34(40) | 58 | 762 | 770 | 6 | 3 | 800 | 840 | 24 | 33 | M30 | 59.00 | 176(196) | 70.20 |
| (750) | 762.0 | 766.0 | 970.0 | 36(44) | 62 | 816 | 824 | 6 | 3 | 855 | 900 | 24 | 33 | M30 | 72.80 | 214(248) | 86.50 |
| 800 | 812.8 | 817.0 | 1020.0 | 36(46) | 64 | 868 | 876 | 6 | 3 | 905 | 950 | 28 | 33 | M30 | 76.00 | 249(286) | 92.00 |
| (850) | 863.6 | 868.0 | 1070.0 | 36(48) | 66 | 920 | 928 | 6 | 3 | 955 | 1000 | 28 | 33 | M30 | 80.10 | (330) | 98.70 |
| 900 | 914.4 | 919.0 | 1120.0 | 38(50) | 70 | 971 | 979 | 6 | 3 | 1005 | 1050 | 28 | 33 | M30 | 88.90 | (377) | 110.00 |
| 1000 | 1016.0 | 1021.0 | 1235.0 | 40(56) | 74 | 1073 | 1081 | 6 | 3 | 1110 | 1160 | 28 | 39 | M36 | 109.00 | (512) | 133.00 |
| 1100 | 1117.6 | 1122.0 | 1345.0 | 42(62) | 95 | 1175 | 1185 | 8 | 3 | 1220 | 1270 | 28 | 39 | M36 | 131.00 | (675) | 175.00 |
| 1200 | 1219.2 | 1224.0 | 1465.0 | 44(66) | 101 | 1278 | 1290 | 8 | 3 | 1325 | 1380 | 32 | 39 | M36 | 163.00 | (854) | 215.00 |
| 1350 | 1371.6 | 1376.0 | 1630.0 | 48(74) | 110 | 1432 | 1450 | 8 | 3 | 1480 | 1540 | 36 | 45 | M42 | 204.00 | (1180) | 274.00 |
| 1500 | 1524.0 | 1529.0 | 1795.0 | 50(82) | 123 | 1585 | 1605 | 8 | 3 | 1635 | 1700 | 40 | 45 | M42 | 248.00 | (1590) | 340.00 |
Packaging: JIS B2220 10K Flanges is sleeved into plastic bag individually, ten pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.
Prevent any damage.
During transportation items are tagged, packed in plastic bags and closed in carton boxes or seaworthy wooden cases.
plywood case,pallet and according to customer's requirment
Marking: JIS B2220 / B2291 B2220 10K Flanges are marked with alloy name, outside diameter, wall thickness and heat number. Additional information like standard and alloy numbers can be added on request.
Stainless Steel JIS B 2220 10k Flanges
Carbon Steel JIS B 2220 10k Flanges
Duplex & Super JIS B 2220 10k Flanges
Nickel Alloy JIS B 2220 10k Flanges
Inconel JIS B 2220 10k Flanges
Incoloy JIS B 2220 10k Flanges
Hastelloy JIS B 2220 10k Flanges
Monel JIS B B 2220 10k Flanges