Omaa Metal Sources is KS B1503 Flanges Exporters and Suppliers in the US, UK, South Africa, Saudi Arabia, Singapore, UAE, Oman, South Korea, Turkey, Bahrain, Malaysia, Philippines, Thailand, Norway, Indonesia, Iraq, Yemen, Bangladesh, Nigeria, Egypt, Peru, Ghana, Morocco, Etc.
KS B1503 weld neck Flange, KS B1503 slip on Flanges Supplier, KS B1503 Plate Flange, KS B1503 16k Threaded Flanges, KS B1503 5K Socket Weld Flanges, KS B1503 Spectacle blind Flanges Manufacturer in India.
KS B1503 is a Korean industrial standard that specifies the dimensions, material requirements, and technical specifications for steel pipe flanges. B1503 flanges are typically used in piping systems for oil, gas, petrochemical, and other industrial applications.
The KS B1503 standard includes flanges with a range of sizes from 10A (3/8″) to 2500A (98″), and pressure ratings from 5K (72.5 psi) to 40K (580 psi). The standard covers both slip-on and welding neck flanges, as well as blind, socket weld, and threaded flanges.
The material requirements for KS B1503 flanges depend on the pressure rating and temperature of the piping system. Common materials used for B1503 flanges include carbon steel, stainless steel, and alloy steel.
Overall, KS B1503 flanges are designed to provide a reliable and durable connection between piping components in industrial settings, and their compliance with the KS B1503 standard ensures consistency and compatibility across different manufacturers and suppliers.
Check Sizes And Dimensions Of KS B1503 Forged Flanges, Suppliers of KS B1503 Welding Neck Flange, Ready Stock of KS B1503 Socket Weld Flange, KS B1503 10k Blind Flanges, KS B1503 Ring Type Joint Orifice Flange.
KS B1503 Flange Specifications
Size Range
1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Class / Pressure Rating
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standards / Dimensions
ANSI/ASME B16.5, B16.36, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605
Connection Type
Ring Joint Flange (RTJ), Flat Face Flange (FF), Raised Face Flange (RF), Male and Female Flange (M & F), Lap Joint Flange, Large and Small Tongue-and-Groove Flange (T & G)
KS B1503 Flanges Dimensions
KS B1503 5k Flange Dimensions | KS B1503 10k Flange Dimensions |
KS B1503 16k Flange Dimensions | KS B1503 20k Flange Dimensions |
Nominal Diameter of Flanges | Outside Diameter of Flanges D | flange Sectional Dimensions | Size Of Bolt | Welding | ||||||||||||
Diameter of Bolt Circle C | Diameter Of raised Face g | Inside Dia. Of Flange do | Outside Diameter Of Applicable pipe | t | T | Hub Diameter | Radius r | Raised Face f | Hole Diameter Of H | Bolt Holes Number | ||||||
a | b | W1 | W2 | |||||||||||||
10 | 75 | 55 | 39 | 17.8 | 17.3 | 9 | – | – | – | – | 1 | 12 | 4 | M10 | 5 | 2.5 |
15 | 80 | 60 | 44 | 22.2 | 21.7 | 9 | – | – | – | – | 1 | 12 | 4 | M10 | 5 | 3 |
20 | 85 | 65 | 49 | 27.7 | 27.2 | 10 | – | – | – | – | 1 | 12 | 4 | M10 | 5 | 3 |
25 | 95 | 75 | 59 | 34.5 | 34 | 10 | – | – | – | – | 1 | 12 | 4 | M10 | 5 | 3 |
32 | 115 | 90 | 70 | 43.2 | 42.7 | 12 | – | – | – | – | 2 | 15 | 4 | M12 | 6 | 3 |
40 | 120 | 95 | 75 | 49.1 | 48.6 | 12 | – | – | – | – | 2 | 15 | 4 | M12 | 6 | 3 |
50 | 130 | 105 | 85 | 61.1 | 60.5 | 14 | 2 | 15 | 4 | M12 | 6 | 3 | ||||
65 | 155 | 130 | 110 | 77.1 | 76.3 | 14 | 2 | 15 | 4 | M12 | 6 | 4 | ||||
80 | 180 | 145 | 121 | 90 | 89.1 | 14 | 2 | 19 | 4 | M16 | 6 | 4 | ||||
90 | 190 | 155 | 131 | 102.6 | 101.6 | 14 | 2 | 19 | 4 | M16 | 6 | 4 | ||||
100 | 200 | 165 | 141 | 115.4 | 114.3 | 16 | 2 | 19 | 8 | M16 | 7 | 4 | ||||
125 | 235 | 200 | 176 | 141.2 | 139.8 | 16 | 2 | 19 | 8 | M16 | 7 | 4 | ||||
150 | 265 | 230 | 206 | 166.6 | 165.2 | 18 | 2 | 19 | 8 | M16 | 7 | 5 | ||||
175 | 300 | 260 | 232 | 192.1 | 190.7 | 18 | 2 | 23 | 8 | M20 | 7.5 | 5 | ||||
200 | 320 | 280 | 252 | 218 | 216.3 | 20 | 2 | 23 | 8 | M20 | 8.5 | 6 | ||||
225 | 345 | 305 | 277 | 243.7 | 241.8 | 20 | 2 | 23 | 12 | M20 | 9 | 6 | ||||
250 | 385 | 345 | 317 | 269.5 | 267.4 | 22 | 2 | 23 | 12 | M20 | 10 | 6 | ||||
300 | 430 | 390 | 360 | 321 | 318.5 | 22 | 3 | 23 | 12 | M20 | 10 | 6 | ||||
350 | 480 | 435 | 403 | 358.1 | 355.6 | 24 | 3 | 25 | 12 | M22 | 12 | 7 | ||||
400 | 540 | 495 | 463 | 409 | 406.4 | 24 | 3 | 25 | 16 | M22 | 12 | 7 | ||||
450 | 605 | 555 | 523 | 460 | 457.2 | 24 | 40 | 495 | 500 | 5 | 3 | 25 | 16 | M22 | 12 | 7 |
500 | 655 | 605 | 573 | 511 | 508 | 24 | 40 | 546 | 552 | 5 | 3 | 25 | 20 | M22 | 12 | 7 |
550 | 720 | 665 | 630 | 562 | 558.8 | 26 | 42 | 597 | 603 | 5 | 3 | 27 | 20 | M24 | 12 | 7 |
600 | 770 | 715 | 680 | 613 | 609.6 | 26 | 44 | 648 | 654 | 5 | 3 | 27 | 20 | M24 | 12 | 7 |
650 | 825 | 770 | 735 | 664 | 660.4 | 26 | 48 | 702 | 708 | 5 | 3 | 27 | 24 | M24 | 12 | 7 |
700 | 875 | 820 | 785 | 715 | 711.2 | 26 | 48 | 751 | 758 | 5 | 3 | 27 | 24 | M24 | 12 | 7 |
750 | 945 | 880 | 840 | 766 | 762 | 28 | 52 | 802 | 810 | 5 | 3 | 33 | 24 | M30 | 12 | 7 |
800 | 995 | 930 | 890 | 817 | 812.8 | 28 | 52 | 854 | 862 | 5 | 3 | 33 | 24 | M30 | 13 | 8 |
850 | 1045 | 980 | 940 | 868 | 863.6 | 28 | 54 | 904 | 912 | 5 | 3 | 33 | 24 | M30 | 13 | 8 |
900 | 1095 | 1030 | 990 | 919 | 914.4 | 30 | 56 | 956 | 964 | 5 | 3 | 33 | 24 | M30 | 13 | 8 |
1000 | 1195 | 1130 | 1090 | 1021 | 1016 | 32 | 60 | 1058 | 1066 | 5 | 3 | 33 | 28 | M30 | 14 | 9 |
*(1100) | 1305 | 1240 | 1200 | 1123 | 1117.6 | 32 | 3 | 33 | 28 | M30 | ||||||
*1200 | 1420 | 1350 | 1305 | 1225 | 1219.2 | 34 | – | – | 3 | 33 | 32 | M30 | ||||
*1350 | 1575 | 1505 | 1460 | – | 1371.6 | 34 | – | – | – | – | 3 | 33 | 32 | M30 | ||
*1500 | 1730 | 1660 | 1615 | – | 1524 | 36 | – | – | – | – | 3 | 33 | 36 | M30 |
Nominal Diameter of Flanges | Outside Diameter of Flanges D | flange Sectional Dimensions | Size Of Bolt | Welding | ||||||||||||
Diameter of Bolt Circle C | Diameter Of raised Face g | Inside DaimeterOf Flange do | O.D. Of Applicable pipe | t | T | Hub Diameter | Radius r | Raised Face f | Hole Diameter Of H | Bolt Holes Number | ||||||
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 |
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Nominal Diameter of Flanges | Outside Diameter of Flanges D | flange Sectional Dimensions | Size Of Bolt | |||||||||||
Diameter of Bolt Circle C | Diameter Of raised Face g | Inside DaimeterOf Flange do | O.D. Of Applicable pipe | t | T | Hub Diameter | Radius r | Raised Face f | Hole Diameter Of H | Bolt Holes Number | ||||
a | b | |||||||||||||
10 | 90 | 65 | 46 | 17.8 | 17.3 | 12 | 16 | 26 | 28 | 4 | 1 | 15 | 4 | M12 |
15 | 95 | 70 | 51 | 22.2 | 21.7 | 12 | 16 | 30 | 32 | 4 | 1 | 15 | 4 | M12 |
20 | 100 | 75 | 56 | 27.7 | 27..2 | 14 | 20 | 38 | 42 | 4 | 1 | 15 | 4 | M12 |
25 | 125 | 90 | 67 | 34.5 | 34 | 14 | 20 | 46 | 50 | 4 | 1 | 19 | 4 | M16 |
32 | 135 | 100 | 76 | 43.2 | 42.7 | 16 | 22 | 56 | 60 | 5 | 2 | 19 | 4 | M16 |
40 | 140 | 105 | 81 | 49.1 | 48.6 | 16 | 24 | 62 | 66 | 5 | 2 | 19 | 4 | M16 |
50 | 155 | 120 | 96 | 61.1 | 60.5 | 16 | 24 | 76 | 80 | 5 | 2 | 19 | 8 | M16 |
65 | 175 | 140 | 116 | 77.1 | 76.3 | 18 | 26 | 94 | 98 | 5 | 2 | 19 | 8 | M16 |
80 | 200 | 160 | 132 | 90 | 89.1 | 20 | 28 | 108 | 112 | 6 | 2 | 23 | 8 | M20 |
-90 | 210 | 170 | 145 | 102.6 | 101.6 | 20 | 30 | 120 | 124 | 6 | 2 | 23 | 8 | M20 |
100 | 225 | 185 | 160 | 115.4 | 114.3 | 22 | 34 | 134 | 138 | 6 | 2 | 23 | 8 | M20 |
125 | 270 | 225 | 195 | 141.2 | 139.8 | 22 | 34 | 164 | 170 | 6 | 2 | 25 | 8 | M22 |
150 | 305 | 260 | 230 | 166.6 | 165.2 | 24 | 38 | 196 | 202 | 6 | 2 | 25 | 12 | M22 |
200 | 350 | 305 | 275 | 218 | 216.3 | 26 | 40 | 244 | 252 | 6 | 2 | 25 | 12 | M22 |
250 | 430 | 380 | 345 | 269.5 | 267.4 | 28 | 44 | 304 | 312 | 6 | 2 | 27 | 12 | M24 |
300 | 480 | 430 | 395 | 321 | 318.5 | 30 | 48 | 354 | 364 | 8 | 3 | 27 | 16 | M24 |
350 | 540 | 480 | 440 | 358.1 | 355.6 | 34 | 52 | 398 | 408 | 8 | 3 | 33 | 16 | M30X3 |
400 | 605 | 540 | 495 | 409 | 406.4 | 38 | 60 | 446 | 456 | 10 | 3 | 33 | 16 | M30X3 |
450 | 675 | 605 | 560 | 460 | 457.2 | 40 | 64 | 504 | 514 | 10 | 3 | 33 | 20 | M30X3 |
500 | 730 | 660 | 615 | 511 | 508 | 42 | 68 | 558 | 568 | 10 | 3 | 33 | 20 | M30X3 |
-550 | 795 | 720 | 670 | 562 | 558.8 | 44 | 70 | 612 | 622 | 10 | 3 | 39 | 20 | M36X3 |
600 | 845 | 770 | 720 | 613 | 609.6 | 46 | 74 | 666 | 676 | 10 | 3 | 39 | 24 | M36X3 |
-650 | 895 | 820 | 770 | 664 | 660.4 | 48 | 77 | 704 | 726 | 10 | 5 | 39 | 24 | M36X3 |
700 | 960 | 875 | 820 | 715 | 711.2 | 50 | 80 | 754 | 776 | 10 | 5 | 42 | 24 | M39X3 |
-750 | 1020 | 935 | 880 | 766 | 762 | 52 | 83 | 806 | 832 | 10 | 5 | 42 | 24 | M39X3 |
800 | 1085 | 990 | 930 | 817 | 812.8 | 54 | 86 | 865 | 885 | 10 | 5 | 48 | 24 | M45X3 |
-850 | 1135 | 1040 | 980 | 868 | 863.6 | 56 | 89 | 916 | 936 | 10 | 5 | 48 | 24 | M45X3 |
900 | 1185 | 1090 | 1030 | 919 | 914.4 | 58 | 93 | 968 | 986 | 10 | 5 | 48 | 28 | M45X3 |
1000 | 1320 | 1210 | 1140 | 1021 | 1016 | 62 | 99 | 1070 | 1098 | 12 | 5 | 56 | 28 | M52X3 |
-1100 | 1420 | 1310 | 1240 | 1123 | 1117.6 | 66 | 105 | 1180 | 1200 | 12 | 5 | 56 | 32 | M52X3 |
1200 | 1530 | 1420 | 1350 | 1225 | 1219.2 | 70 | 112 | 1282 | 1302 | 12 | 5 | 56 | 32 | M52X3 |
Nominal Diameter of Flanges | Outside Diameter of Flanges D | flange Sectional Dimensions | Reference | |||||||||||||||||
Diameter of Bolt Circle C | Diameter Of raised Face g | Inside DaimeterOf Flanges do | O.D. of Steel pipe | t | T | Hub Diameter | Radius r | f | D | Bolt Holes Number | Holes Dia. H | SIZE Of Bolt | S1 | M | S2 | N | L | |||
a | b | |||||||||||||||||||
10 | 90 | 65 | 46 | 17.8 | 17.3 | 14 | 20 | 30 | 32 | 4 | 1 | – | 4 | 15 | M12 | 27 | 4 | 27 | 4 | – |
15 | 95 | 70 | 51 | 22.2 | 21.7 | 14 | 20 | 34 | 36 | 4 | 1 | – | 4 | 15 | M12 | 31 | 4 | 31 | 4 | – |
20 | 100 | 75 | 56 | 27.7 | 27.2 | 16 | 22 | 40 | 42 | 4 | 1 | – | 4 | 15 | M12 | 37 | 4 | 37 | 4 | – |
25 | 125 | 90 | 67 | 34.5 | 34 | 16 | 24 | 48 | 50 | 4 | 1 | 4 | 19 | M16 | 44 | 4 | 44 | 4.5 | – | |
32 | 135 | 100 | 76 | 43.2 | 42.7 | 18 | 26 | 56 | 60 | 5 | 2 | – | 4 | 19 | M16 | 52 | 4 | 53 | 5 | – |
40 | 140 | 105 | 81 | 49.1 | 48.6 | 18 | 26 | 62 | 66 | 5 | 2 | – | 4 | 19 | M16 | 58 | 4 | 59 | 5.5 | – |
50 | 155 | 120 | 96 | 61.1 | 60.5 | 18 | 26 | 76 | 80 | 5 | 2 | – | 8 | 19 | M16 | 70 | 4 | 72 | 5.5 | – |
65 | 175 | 140 | 116 | 77.7 | 76.3 | 20 | 30 | 100 | 104 | 5 | 2 | 65.9 | 8 | 19 | M16 | 94 | 6 | – | – | 6 |
80 | 200 | 160 | 132 | 90 | 89.1 | 22 | 34 | 113 | 117 | 6 | 2 | 78.1 | 8 | 23 | M20 | 107 | 6 | – | – | 6 |
-90 | 210 | 170 | 145 | 102.6 | 101.6 | 24 | 36 | 126 | 130 | 6 | 2 | 90.2 | 8 | 23 | M20 | 120 | 6 | – | – | 6 |
100 | 225 | 185 | 160 | 115.4 | 114.3 | 24 | 36 | 138 | 142 | 6 | 2 | 102.3 | 8 | 23 | M20 | 132 | 6 | – | – | 6 |
125 | 270 | 225 | 195 | 141.2 | 139.8 | 26 | 40 | 166 | 172 | 6 | 2 | 126.6 | 8 | 25 | M22 | 160 | 7 | – | – | 6 |
150 | 305 | 260 | 230 | 166.6 | 165.2 | 28 | 42 | 196 | 202 | 6 | 2 | 151 | 12 | 25 | M22 | 186 | 8 | – | – | 6 |
200 | 350 | 305 | 275 | 218 | 216.3 | 30 | 46 | 244 | 252 | 6 | 2 | 199.9 | 12 | 25 | M22 | 237 | 9 | – | – | 6 |
250 | 430 | 380 | 345 | 269.5 | 267.4 | 34 | 52 | 304 | 312 | 6 | 2 | 248.8 | 12 | 27 | M24 | 290 | 10 | – | – | 6 |
300 | 480 | 430 | 395 | 321 | 318.5 | 36 | 56 | 354 | 364 | 8 | 3 | 297.9 | 16 | 27 | M24 | 345 | 11 | – | – | 6 |
350 | 540 | 480 | 440 | 358.1 | 355.6 | 40 | 62 | 398 | 408 | 8 | 3 | 333.4 | 16 | 33 | M30X3 | 384 | 12 | – | – | 6 |
400 | 605 | 540 | 495 | 409 | 406.4 | 46 | 70 | 446 | 456 | 10 | 3 | 381 | 16 | 33 | M30X3 | 437 | 13 | – | – | 7 |
450 | 675 | 605 | 560 | 460 | 457.2 | 48 | 78 | 504 | 514 | 10 | 3 | 431.8 | 20 | 33 | M30X3 | 490 | 15 | – | – | 7 |
500 | 730 | 660 | 615 | 511 | 508 | 50 | 84 | 558 | 568 | 10 | 3 | 482.6 | 20 | 33 | M30X3 | 544 | 16 | – | – | 7 |
-550 | 795 | 720 | 670 | 562 | 558.8 | 52 | 90 | 612 | 622 | 10 | 3 | 533.4 | 20 | 39 | M36X3 | 595 | 16 | – | – | 7 |
600 | 845 | 770 | 720 | 613 | 609.6 | 54 | 96 | 666 | 676 | 10 | 3 | 584.2 | 24 | 39 | M36X3 | 646 | 18 | – | – | 7 |
*650 | 945 | 850 | 790 | 664 | 660.4 | 60 | 5 | 24 | 48 | M45X3 | ||||||||||
*700 | 995 | 900 | 840 | 715 | 711.2 | 64 | 5 | 24 | 48 | M45X3 | ||||||||||
*750 | 1080 | 970 | 900 | 766 | 762 | 68 | 5 | 24 | 56 | M52X3 | ||||||||||
*800 | 1140 | 1030 | 960 | 817 | 812.8 | 72 | 5 | 24 | 56 | M52X3 | ||||||||||
*850 | 1200 | 1090 | 1020 | 868 | 863.6 | 74 | 5 | 24 | 56 | M52X3 | ||||||||||
*900 | 1250 | 1140 | 1070 | 919 | 914.4 | 76 | 5 | 28 | 56 | M52X3 |
KS B1503 Flanges Schedule Chart
Standard Of Flanges | Class Of Flanges | Diameter Of Flanges | Bolt Circle Diameter Of Flanges | Number of Bolts Of Flanges | Bolt Size Of Flanges | Bolt Hole Diameter |
---|---|---|---|---|---|---|
AS4087 Flanges | PN14 Flanges | 95 | 67 | 4 | M12 | 14 |
AS 2129 Flange | Table C Flanges | 95 | 67 | 4 | 13 | 14 |
Table D Flanges | 95 | 67 | 4 | 13 | 14 | |
Table E Flanges | 95 | 67 | 4 | 13 | 14 | |
Table F Flanges | 95 | 67 | 4 | 13 | 14 | |
Table H Flanges | 114 | 83 | 4 | 16 | 17 | |
Table J Flanges | 114 | 83 | 4 | 16 | 17 | |
ANSI B16.5 Flanges | ANSI 150 Flanges | 89 | 60 | 4 | 13 | 16 |
ANSI 300 Flanges | 95 | 67 | 4 | 13 | 16 | |
ANSI 600 Flanges | 95 | 67 | 4 | 13 | 16 | |
ANSI 900 Flanges | 121 | 83 | 4 | 19 | 22 | |
ANSI 1500 Flanges | 121 | 83 | 4 | 19 | 22 | |
ISO 7005 (DIN) Flange | PN6 Flanges | 80 | 55 | 4 | M10 | 11 |
PN10 Flanges | 95 | 65 | 4 | M12 | 14 | |
PN16 Flanges | 95 | 65 | 4 | M12 | 14 | |
PN20 Flanges | 90 | 60.5 | 4 | M14 | 16 | |
PN25 Flanges | 95 | 65 | 4 | M12 | 14 | |
PN40 Flanges | 95 | 65 | 4 | M12 | 14 |
KS B1503 10k-16k Flanges Thickness
Gost 33259 Flange Wall Thickness | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NPS (Normal Pipe Sizes) | Outside Daimeter (O.D.) | Schedule 10 | Schedule 20 | Schedule 30 | STD Wall | Schedule 40 | Schedule 60 | EXT Hvy | Schedule 80 | Schedule 100 | Schedule 120 | Schedule 140 | Schedule 160 | XX Hvy |
½ | 0.84 | 0.083 | … | … | 0.109 | 0.109 | … | 0.147 | 0.147 | … | … | … | 0.188 | 0.294 |
¾ | 1.05 | 0.083 | … | … | 0.113 | 0.113 | … | 0.154 | 0.154 | … | … | … | 0.219 | 0.308 |
1 | 1.315 | 0.109 | … | … | 0.133 | 0.133 | … | 0.179 | 0.179 | … | … | … | 0.25 | 0.358 |
1 ¼ | 1.66 | 0.109 | … | … | 0.14 | 0.14 | … | 0.191 | 0.191 | … | … | … | 0.25 | 0.382 |
1 ½ | 1.9 | 0.109 | … | … | 0.145 | 0.145 | … | 0.2 | 0.2 | … | … | … | 0.281 | 0.4 |
2 | 2.375 | 0.109 | … | … | 0.154 | 0.154 | … | 0.218 | 0.218 | … | … | … | 0.344 | 0.436 |
2 ½ | 2.875 | 0.12 | … | … | 0.203 | 0.203 | … | 0.276 | 0.276 | … | … | … | 0.375 | 0.552 |
3 | 3.5 | 0.12 | … | … | 0.216 | 0.216 | … | 0.3 | 0.3 | … | … | … | 0.438 | 0.6 |
3 ½ | 4 | 0.12 | … | … | 0.226 | 0.226 | … | 0.318 | 0.318 | … | … | … | … | 0.636 |
4 | 4.5 | 0.12 | … | … | 0.237 | 0.237 | … | 0.337 | 0.337 | … | 0.438 | … | 0.531 | 0.674 |
5 | 5.563 | 0.134 | … | … | 0.258 | 0.258 | … | 0.375 | 0.375 | … | 0.5 | … | 0.625 | 0.75 |
6 | 6.625 | 0.134 | … | … | 0.28 | 0.28 | … | 0.432 | 0.432 | … | 0.562 | … | 0.719 | 0.864 |
8 | 8.625 | 0.148 | 0.25 | 0.277 | 0.322 | 0.322 | 0.406 | 0.5 | 0.5 | 0.594 | 0.719 | 0.812 | 0.906 | 0.875 |
10 | 10.75 | 0.165 | 0.25 | 0.307 | 0.365 | 0.365 | 0.5 | 0.5 | 0.594 | 0.719 | 0.844 | 1 | 1.125 | 1 |
12 | 12.75 | 0.18 | 0.25 | 0.33 | 0.375 | 0.406 | 0.562 | 0.5 | 0.688 | 0.844 | 1 | 1.125 | 1.312 | 1 |
14 | 14 | 0.25 | 0.312 | 0.375 | 0.375 | 0.438 | 0.594 | 0.5 | 0.75 | 0.938 | 1.094 | 1.25 | 1.406 | … |
16 | 16 | 0.25 | 0.312 | 0.375 | 0.375 | 0.5 | 0.656 | 0.5 | 0.844 | 1.031 | 1.219 | 1.438 | 1.594 | … |
18 | 18 | 0.25 | 0.312 | 0.438 | 0.375 | 0.562 | 0.75 | 0.5 | 0.938 | 1.156 | 1.375 | 1.562 | 1.781 | … |
20 | 20 | 0.25 | 0.375 | 0.5 | 0.375 | 0.594 | 0.812 | 0.5 | 1.031 | 1.281 | 1.5 | 1.75 | 1.969 | … |
22 | 22 | 0.25 | … | … | 0.375 | … | … | 0.5 | … | … | …. | …. | …. | …. |
24 | 24 | 0.25 | 0.375 | 0.562 | 0.375 | 0.688 | 0.969 | 0.5 | 1.219 | 1.531 | 1.812 | 2.062 | 2.344 | …. |
26 | 26 | …. | …. | …. | 0.375 | …. | …. | 0.5 | …. | …. | …. | …. | …. | …. |
30 | 30 | 0.312 | 0.5 | 0.625 | 0.375 | …. | …. | 0.5 | …. | …. | …. | …. | …. | …. |
36 | 36 | 0.312 | 0.5 | 0.625 | 0.375 | 0.75 | …. | 0.5 | …. | …. | …. | …. | …. | …. |
40 | 40 | …. | …. | …. | 0.375 | …. | …. | 0.5 | …. | …. | …. | …. | …. | …. |
42 | 42 | …….. | …….. | …….. | 0.375 | …….. | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
48 | 48 | …….. | …….. | …….. | 0.375 | …….. | …….. | 0.5 | …….. | …….. | …….. | …….. | …….. | …….. |
KS B1503 Flanges Pressure Rating
Gost 12820 Flange Pressure Pressure | |||||||
---|---|---|---|---|---|---|---|
Temperature (°C) |
Class | ||||||
Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 | |
-29 – 38 | 19.8 | 51.7 | 68.9 | 103.4 | 155 | 259 | 431 |
50 | 19.5 | 51.7 | 68.9 | 103.4 | 155 | 259 | 431 |
100 | 17.7 | 51.5 | 68.7 | 103.0 | 155 | 258 | 429 |
150 | 15.8 | 50.2 | 66.8 | 100.3 | 151 | 251 | 418 |
200 | 13.8 | 48.6 | 64.8 | 97.2 | 146 | 243 | 405 |
250 | 12.1 | 46.3 | 61.7 | 92.7 | 139 | 232 | 386 |
300 | 10.2 | 42.9 | 57.0 | 85.7 | 129 | 214 | 357 |
325 | 9.3 | 41.4 | 55.0 | 82.6 | 124 | 207 | 344 |
350 | 8.4 | 40.0 | 53.4 | 80.0 | 120 | 200 | 334 |
375 | 7.4 | 37.8 | 50.4 | 75.7 | 114 | 189 | 315 |
400 | 6.5 | 34.7 | 46.3 | 69.4 | 104 | 174 | 290 |
425 | 5.5 | 28.8 | 38.4 | 57.5 | 86.3 | 144 | 240 |
450 | 4.6 | 23.0 | 30.7 | 46.0 | 69.0 | 115 | 192 |
475 | 3.7 | 17.1 | 22.8 | 34.2 | 51.3 | 85.4 | 142 |
500 | 2.8 | 11.6 | 15.4 | 23.2 | 34.7 | 57.9 | 96.5 |
538 | 1.4 | 5.9 | 7.9 | 11.8 | 17.7 | 29.5 | 49.2 |
KS B1503 Flanges Bolt Chart
Class 150 Flanges | Class 300 Flanges | Class 600 Flanges | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
NPS | # Bolts And Studs | Diameter of Bolts And Studs | Stud Length | # Bolts And Studs | Diameter of Bolts And Studs | Stud Length | # Bolts And Studs | Diameter of Bolts And Studs | Stud Length | |||
1/16 RF | RTJ | 1/16 RF | RTJ | 1/4 RF | RTJ | |||||||
1/2 | 4 | 0.50 | 2-1/4 | – | 4 | 0.50 | 2-1/2 | 3 | 4 | 0.50 | 3 | 3 |
3/4 | 4 | 0.50 | 2-1/2 | – | 4 | 0.63 | 3 | 3-1/2 | 4 | 0.63 | 3-1/2 | 3-1/2 |
1 | 4 | 0.50 | 2-1/2 | 3 | 4 | 0.63 | 3 | 3-1/2 | 4 | 0.63 | 3-1/2 | 3-1/2 |
1-1/4 | 4 | 0.50 | 2-3/4 | 3-1/4 | 4 | 0.63 | 3-1/4 | 3-3/4 | 4 | 0.63 | 3-3/4 | 3-3/4 |
1-1/2 | 4 | 0.50 | 2-3/4 | 3-1/4 | 4 | 0.75 | 3-1/2 | 4 | 4 | 0.75 | 4-1/4 | 4-1/4 |
2 | 4 | 0.63 | 3-1/4 | 3-3/4 | 8 | 0.63 | 3-1/2 | 4 | 8 | 0.63 | 4-1/4 | 4-1/4 |
2-1/2 | 4 | 0.63 | 3-1/2 | 4 | 8 | 0.75 | 4 | 4-1/2 | 8 | 0.75 | 4-3/4 | 4-3/4 |
3 | 4 | 0.63 | 3-1/2 | 4 | 8 | 0.75 | 4-1/4 | 4-3/4 | 8 | 0.75 | 5 | 5 |
3-1/2 | 8 | 0.63 | 3-1/2 | 4 | 8 | 0.75 | 4-1/4 | 5 | 8 | 0.88 | 5-1/2 | 5-1/2 |
4 | 8 | 0.63 | 3-1/2 | 4 | 8 | 0.75 | 4-1/2 | 5 | 8 | 0.88 | 5-3/4 | 5-3/4 |
5 | 8 | 0.75 | 3-3/4 | 4-1/4 | 8 | 0.75 | 4-3/4 | 5-1/4 | 8 | 1.00 | 6-1/2 | 6-1/2 |
6 | 8 | 0.75 | 4 | 4-1/2 | 12 | 0.75 | 4-3/4 | 5-1/2 | 12 | 1.00 | 6-3/4 | 6-3/4 |
8 | 8 | 0.75 | 4-1/4 | 4-3/4 | 12 | 0.88 | 5-1/2 | 6 | 12 | 1.13 | 7-1/2 | 7-3/4 |
10 | 12 | 0.88 | 4-1/2 | 5 | 16 | 1.00 | 6-1/4 | 6-3/4 | 16 | 1.25 | 8-1/2 | 8-1/2 |
12 | 12 | 0.88 | 4-3/4 | 5-1/4 | 16 | 1.13 | 6-3/4 | 7-1/4 | 20 | 1.25 | 8-3/4 | 8-3/4 |
14 | 12 | 1.00 | 5-1/4 | 5-3/4 | 20 | 1.13 | 7 | 7-1/2 | 20 | 1.38 | 9-1/4 | 9-1/4 |
16 | 16 | 1.00 | 5-1/4 | 5-3/4 | 20 | 1.25 | 7-1/2 | 8 | 20 | 1.50 | 10 | 10 |
18 | 16 | 1.13 | 5-3/4 | 6-1/4 | 24 | 1.25 | 7-3/4 | 8-1/4 | 20 | 1.63 | 10-3/4 | 10-3/4 |
20 | 20 | 1.13 | 6-1/4 | 6-3/4 | 24 | 1.25 | 8 | 8-3/4 | 24 | 1.63 | 11-1/4 | 11-1/2 |
24 | 20 | 1.25 | 6-3/4 | 7-1/4 | 24 | 1.50 | 9 | 10 | 24 | 1.88 | 13 | 13-1/4 |
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KS B1503 Flanges Applications
-
- Petrochemical Industries
- Pharmaceutical Equipment
- Power Generation
- Heating Systems and Heat Exchanger
- Pulp and Paper Industry
- Mining Support
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- Plumbing
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- Buildings and Bridges
- Industrial Water Lines
- Food Processing Industry
- Fire Protection Systems
- Off-Shore Oil Drilling Companies
Australia, Afghanistan, Algeria, Angola, Argentina, Armenia, Azerbaijan, Bahrain, Bangladesh, Benin,
Bhutan, Botswana, Brazil, Brunei, Burkina Faso, Cambodia, Cameroon, Canada, Central Africa Republic,
Chad, Chile, Colombia, Cuba, Cyprus, DRC, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini,
Ethiopia, Fiji, Finland, France, Georgia, Germany, Ghana, Greece, Hungary, Iceland, Indonesia, Iran,
Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Laos, Lebanon,
Lesotho, Liberia, Libya, Lithuania, Madagascar, Malawi, Malaysia, Maldives, Mali, Mexico, Morocco,
Mozambique, Mauritania, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman,
Panama, Peru, Philippines, Poland, Portugal, Palestine, Qatar, Russia, Rwanda, Romania, Saudi Arabia,
Senegal, Sierra Leone, Singapore, Slovakia, Somalia, South Africa, South Korea, South Sudan, Spain,
Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Tasmania, Thailand, The Gambia,
Timor-Leste, Togo, Tunisia, Turkey, Turkiye, Turkmenistan, Uganda, Uzbekistan, United Arab Emirates (UAE),
United Kingdom (UK), United States (US), Venezuela, Vietnam, Yemen, Zambia, Zimbabwe
Abu Dhabi, Amsterdam, Abuja, Accra, Addis Ababa, Ahmedabad, Algiers, Amman, Ankara, Antananarivo,
Ashgabat, Asmara, Astana, Athens, Baghdad, Baku, Bamako, Bandar Seri Begawan, Bangkok, Bangui,
Banjul, Beirut, Bengaluru, Berlin, Bishkek, Bloemfontein, Bogotá, Bern, Brasília, Bratislava,
Bucharest, Budapest, Buenos Aires, Cairo, Canberra, Cape Town, Caracas, Chennai, Coimbatore, Dakar,
Damascus, Dhaka, Dili, Djibouti city, Dodoma, Doha, Dublin, Dushanbe, Freetown, Gaborone, Ghaziabad,
Guwahati, Hanoi, Harare, Havana, Helsinki, Hobart, Hyderabad, Indore, Jaipur, Jakarta, Jerusalem,
Juba, Jurong East, Kabul, Kampala, Kanpur, Kathmandu, Kigali, Kinshasa, Kochi, Kolkata, Kuala Lumpur,
Kuwait City, Lisbon, Lilongwe, Lima, Lobamba, Lomé, London, Luanda, Lucknow, Lusaka, Malabo, Madrid,
Malé, Mexico City, Manama, Moscow, Manila, Maputo, Maseru, Mbabane, Mogadishu, Monrovia, Mumabi,
Muscat, Nagpur, Nairobi, New Delhi, Niamey, Nicosia, Noida, Nouakchott, N’Djamena, Oslo, Ottawa,
Ouagadougou, Panama City, Paris, Patna, Phnom Penh, Porto-Novo, Pretoria, Pune, Rabat, Reykjavík,
Riyadh, Rome, Sana’a, Santiago, Sri Jayawardenepura Kotte, Stockholm, Seoul, Singapore, Surat,
Suva, Taipei City, Tashkent, Tokyo, Tbilisi, Tehran, Thimphu, Tripoli, Tunis, Vientiane, Vilnius,
Visakhapatnam, Warsaw, Washington D.C., Wellington, Windhoek, Yaoundé, Yerevan, Naypyidaw