GOST12821 Welding Neck Flange
Price:
Negotiable
MOQ:
Negotiable
Delivery Time:
30 days
Brand:
ZHENGSHENG
Product Description
| GOST 12821-80 Steel butt-welded flanges | |||||||||||
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 0,6 MPa (6 kgf/cm2) | |||||||||||
| 1-10-6 | 75 | 50 | 35 | 2 | 8 | 10 | 27 | 22 | 15 | 4 | 11 |
| 1-15-6 | 80 | 55 | 40 | 2 | 12 | 10 | 28 | 28 | 19 | 4 | 11 |
| 1-20-6 | 90 | 65 | 50 | 2 | 18 | 10 | 30 | 36 | 26 | 4 | 11 |
| 1-25-6 | 100 | 75 | 60 | 2 | 25 | 12 | 30 | 42 | 33 | 4 | 11 |
| 1-32-6 | 120 | 90 | 70 | 2 | 31 | 12 | 33 | 50 | 39 | 4 | 14 |
| 1-40-6 | 130 | 100 | 80 | 3 | 38 | 12 | 35 | 60 | 46 | 4 | 14 |
| 1-50-6 | 140 | 110 | 90 | 3 | 49 | 12 | 35 | 70 | 58 | 4 | 14 |
| 1-65-6 | 160 | 130 | 110 | 3 | 66 | 12 | 35 | 88 | 77 | 4 | 14 |
| 1-80-6 | 185 | 150 | 128 | 3 | 78 | 13 | 37 | 102 | 90 | 4 | 18 |
| 1-100-6 | 205 | 170 | 148 | 3 | 96 | 13 | 38 | 122 | 110 | 4 | 18 |
| 1-125-6 | 235 | 200 | 178 | 3 | 121 | 15 | 40 | 148 | 135 | 8 | 18 |
| 1-150-6 | 260 | 225 | 202 | 3 | 146 | 15 | 43 | 172 | 161 | 8 | 18 |
| 1-175-6 | 290 | 255 | 232 | 3 | 177 | 17 | 47 | 210 | 196 | 8 | 18 |
| 1-200-6 | 315 | 280 | 258 | 3 | 202 | 17 | 50 | 235 | 222 | 8 | 18 |
| 1-225-6 | 340 | 305 | 282 | 3 | 226 | 17 | 50 | 260 | 248 | 8 | 18 |
| 1-250-6 | 370 | 335 | 312 | 3 | 254 | 18 | 50 | 288 | 278 | 12 | 18 |
| 1-300-6 | 435 | 395 | 365 | 4 | 303 | 18 | 50 | 340 | 330 | 12 | 22 |
| 1-350-6 | 485 | 445 | 415 | 4 | 351 | 18 | 50 | 390 | 382 | 12 | 22 |
| 1-400-6 | 535 | 495 | 465 | 4 | 398 | 18 | 50 | 440 | 432 | 16 | 22 |
| 1-450-6 | 590 | 550 | 520 | 4 | 450 | 18 | 50 | 494 | 484 | 16 | 22 |
| 1-500-6 | 640 | 600 | 570 | 4 | 501 | 19 | 50 | 545 | 535 | 16 | 22 |
| 1-600-6 | 755 | 705 | 670 | 5 | 602 | 19 | 55 | 650 | 636 | 20 | 26 |
| 1-700-6 | 860 | 810 | 775 | 5 | 692 | 19 | 55 | 740 | 726 | 24 | 26 |
| 1-800-6 | 975 | 920 | 880 | 5 | 792 | 19 | 60 | 844 | 826 | 24 | 30 |
| 1-900-6 | 1075 | 1020 | 980 | 5 | 892 | 21 | 60 | 944 | 926 | 24 | 30 |
| 1-1000-6 | 1175 | 1120 | 1080 | 5 | 992 | 21 | 60 | 1044 | 1028 | 28 | 30 |
| 1-1200-6 | 1400 | 1340 | 1295 | 5 | 1192 | 23 | 70 | 1248 | 1228 | 32 | 33 |
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 1,0 MPa (10 kgf/cm2) | |||||||||||
| 1-10-10 | 90 | 60 | 42 | 2 | 8 | 10 | 33 | 25 | 15 | 4 | 14 |
| 1-15-10 | 95 | 65 | 47 | 2 | 12 | 10 | 33 | 30 | 19 | 4 | 14 |
| 1-20-10 | 105 | 75 | 58 | 2 | 18 | 12 | 36 | 38 | 26 | 4 | 14 |
| 1-25-10 | 115 | 85 | 68 | 2 | 25 | 12 | 38 | 45 | 33 | 4 | 14 |
| 1-32-10 | 135 | 100 | 78 | 2 | 31 | 13 | 40 | 55 | 39 | 4 | 18 |
| 1-40-10 | 145 | 110 | 88 | 3 | 38 | 13 | 42 | 62 | 46 | 4 | 18 |
| 1-50-10 | 160 | 125 | 102 | 3 | 49 | 13 | 42 | 76 | 58 | 4 | 18 |
| 1-65-10 | 180 | 145 | 122 | 3 | 66 | 15 | 45 | 94 | 77 | 4 | 18 |
| 1-80-10 | 195 | 160 | 133 | 3 | 78 | 15 | 47 | 105 | 90 | 4 | 18 |
| 1-100-10 | 215 | 180 | 158 | 3 | 96 | 17 | 48 | 128 | 110 | 8 | 18 |
| 1-125-10 | 245 | 210 | 184 | 3 | 121 | 19 | 57 | 156 | 135 | 8 | 18 |
| 1-150-10 | 280 | 240 | 212 | 3 | 146 | 19 | 57 | 180 | 161 | 8 | 22 |
| 1-175-10 | 310 | 270 | 242 | 3 | 177 | 19 | 57 | 210 | 196 | 8 | 22 |
| 1-200-10 | 335 | 295 | 268 | 3 | 202 | 19 | 58 | 240 | 222 | 8 | 22 |
| 1-225-10 | 365 | 325 | 295 | 3 | 226 | 19 | 60 | 268 | 248 | 8 | 22 |
| 1-250-10 | 390 | 350 | 320 | 3 | 254 | 21 | 60 | 290 | 278 | 12 | 22 |
| 1-300-10 | 440 | 400 | 370 | 4 | 303 | 22 | 60 | 345 | 330 | 12 | 22 |
| 1-350-10 | 500 | 460 | 430 | 4 | 351 | 22 | 60 | 400 | 382 | 16 | 22 |
| 1-400-10 | 565 | 515 | 482 | 4 | 398 | 22 | 60 | 445 | 432 | 16 | 26 |
| 1-450-10 | 615 | 565 | 532 | 4 | 450 | 22 | 65 | 500 | 484 | 20 | 26 |
| 1-500-10 | 670 | 620 | 585 | 4 | 501 | 24 | 65 | 550 | 535 | 20 | 26 |
| 1-600-10 | 780 | 725 | 685 | 5 | 602 | 24 | 65 | 650 | 636 | 20 | 30 |
| 1-700-10 | 895 | 840 | 800 | 5 | 692 | 25 | 65 | 744 | 726 | 24 | 30 |
| 1-800-10 | 1010 | 950 | 905 | 5 | 792 | 27 | 75 | 850 | 826 | 24 | 33 |
| 1-900-10 | 1110 | 1050 | 1005 | 5 | 892 | 29 | 80 | 950 | 926 | 28 | 33 |
| 1-1000-10 | 1220 | 1160 | 1110 | 5 | 992 | 29 | 80 | 1050 | 1028 | 28 | 33 |
| 1-1200-10 | 1455 | 1380 | 1330 | 5 | 1192 | 33 | 90 | 1256 | 1228 | 32 | 39 |
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 1,6 MPa (16 kgf/cm2) | |||||||||||
| 1-10-16 | 90 | 60 | 42 | 2 | 8 | 12 | 33 | 26 | 15 | 4 | 14 |
| 1-15-16 | 95 | 65 | 47 | 2 | 12 | 12 | 33 | 30 | 19 | 4 | 14 |
| 1-20-16 | 105 | 75 | 58 | 2 | 18 | 12 | 36 | 38 | 26 | 4 | 14 |
| 1-25-16 | 115 | 85 | 68 | 2 | 25 | 12 | 38 | 45 | 33 | 4 | 14 |
| 1-32-16 | 135 | 100 | 78 | 2 | 31 | 13 | 40 | 55 | 39 | 4 | 18 |
| 1-40-16 | 145 | 110 | 88 | 3 | 38 | 13 | 42 | 64 | 46 | 4 | 18 |
| 1-50-16 | 160 | 125 | 102 | 3 | 49 | 13 | 45 | 76 | 58 | 4 | 18 |
| 1-65-16 | 180 | 145 | 122 | 3 | 66 | 15 | 47 | 94 | 77 | 4 | 18 |
| 1-80-16 | 195 | 160 | 133 | 3 | 78 | 17 | 50 | 110 | 90 | 4 | 18 |
| 1-100-16 | 215 | 180 | 158 | 3 | 96 | 17 | 50 | 130 | 110 | 8 | 18 |
| 1-125-16 | 245 | 210 | 184 | 3 | 121 | 19 | 57 | 156 | 135 | 8 | 18 |
| 1-150-16 | 280 | 240 | 212 | 3 | 146 | 19 | 57 | 180 | 161 | 8 | 22 |
| 1-175-16 | 310 | 270 | 242 | 3 | 177 | 21 | 57 | 210 | 196 | 8 | 22 |
| 1-200-16 | 335 | 295 | 268 | 3 | 202 | 21 | 58 | 240 | 222 | 12 | 22 |
| 1-225-16 | 365 | 325 | 295 | 3 | 226 | 21 | 65 | 268 | 248 | 12 | 22 |
| 1-250-16 | 405 | 355 | 320 | 3 | 254 | 23 | 65 | 292 | 278 | 12 | 26 |
| 1-300-16 | 460 | 410 | 370 | 4 | 303 | 24 | 66 | 346 | 330 | 12 | 26 |
| 1-350-16 | 520 | 470 | 430 | 4 | 351 | 28 | 70 | 400 | 382 | 16 | 26 |
| 1-400-16 | 580 | 525 | 482 | 4 | 398 | 32 | 75 | 450 | 432 | 16 | 30 |
| 1-450-16 | 640 | 585 | 532 | 4 | 450 | 34 | 85 | 506 | 484 | 20 | 30 |
| 1-500-16 | 710 | 650 | 585 | 4 | 501 | 38 | 90 | 559 | 535 | 20 | 33 |
| 1-600-16 | 840 | 770 | 685 | 5 | 602 | 41 | 90 | 660 | 636 | 20 | 39 |
| 1-700-16 | 910 | 840 | 800 | 5 | 692 | 43 | 95 | 750 | 726 | 24 | 39 |
| 1-800-16 | 1020 | 950 | 905 | 5 | 792 | 45 | 95 | 850 | 826 | 24 | 39 |
| 1-900-16 | 1120 | 1050 | 1005 | 5 | 892 | 47 | 110 | 958 | 926 | 28 | 39 |
| 1-1000-16 | 1255 | 1170 | 1110 | 5 | 992 | 49 | 110 | 1060 | 1028 | 28 | 45 |
| 1-1200-16 | 1485 | 1390 | 1330 | 5 | 1192 | 51 | 125 | 1268 | 1228 | 32 | 52 |
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 2,5 MPa (25 kgf/cm2) | |||||||||||
| 1-10-25 | 90 | 60 | 42 | 2 | 8 | 14 | 33 | 26 | 15 | 4 | 14 |
| 1-15-25 | 5 | 65 | 47 | 2 | 12 | 14 | 33 | 30 | 19 | 4 | 14 |
| 1-20-25 | 105 | 75 | 58 | 2 | 18 | 14 | 34 | 38 | 26 | 4 | 14 |
| 1-25-25 | 115 | 85 | 68 | 2 | 25 | 14 | 36 | 45 | 33 | 4 | 14 |
| 1-32-25 | 135 | 100 | 78 | 2 | 31 | 16 | 43 | 56 | 39 | 4 | 18 |
| 1-40-25 | 115 | 110 | 88 | 3 | 38 | 16 | 45 | 64 | 46 | 4 | 18 |
| 1-50-25 | 160 | 125 | 102 | 3 | 49 | 17 | 45 | 76 | 58 | 4 | 18 |
| 1-65-25 | 180 | 145 | 122 | 3 | 66 | 19 | 50 | 96 | 77 | 8 | 18 |
| 1-80-25 | 195 | 160 | 133 | 3 | 78 | 19 | 52 | 110 | 90 | 8 | 18 |
| 1-100-25 | 230 | 190 | 158 | 3 | 96 | 21 | 58 | 132 | 110 | 8 | 22 |
| 1-125-25 | 270 | 220 | 184 | 3 | 121 | 23 | 65 | 160 | 135 | 8 | 26 |
| 1-150-25 | 300 | 250 | 212 | 3 | 146 | 25 | 68 | 186 | 161 | 8 | 26 |
| 1-175-25 | 33C | 280 | 242 | 3 | 177 | 25 | 70 | 216 | 196 | 12 | 26 |
| 1-200-25 | 360 | 310 | 278 | 3 | 202 | 27 | 75 | 245 | 222 | 12 | 26 |
| 1-225-25 | 395 | 340 | 305 | 3 | 226 | 29 | 75 | 270 | 248 | 12 | 30 |
| 1-250-25 | 425 | 370 | 335 | 3 | 254 | 29 | 75 | 300 | 278 | 12 | 30 |
| 1-300-25 | 485 | 430 | 390 | 4 | 303 | 32 | 80 | 352 | 330 | 16 | 30 |
| 1-350-25 | 550 | 490 | 450 | 4 | 351 | 36 | 85 | 406 | 382 | 16 | 33 |
| 1-400-25 | 610 | 550 | 505 | 4 | 398 | 40 | 100 | 464 | 432 | 16 | 33 |
| 1-450-25 | 660 | 600 | 555 | 4 | 450 | 42 | 100 | 515 | 484 | 20 | 33 |
| 1-500-25 | 730 | 660 | 615 | 4 | 500 | 44 | 100 | 570 | 535 | 20 | 39 |
| 1-600-25 | 840 | 770 | 720 | 5 | 600 | 49 | 115 | 670 | 636 | 20 | 39 |
| 1-700-25 | 960 | 875 | 820 | 5 | 690 | 53 | 125 | 766 | 726 | 24 | 45 |
| 1-800-25 | 1075 | 990 | 930 | 5 | 790 | 55 | 135 | 874 | 826 | 24 | 45 |
| 1-900-25 | 1185 | 1090 | 1030 | 5 | 892 | 57 | 145 | 980 | 926 | 28 | 52 |
| 1-1000-25 | 1315 | 1210 | 1140 | 5 | 992 | 59 | 150 | 1084 | 1028 | 28 | 56 |
| 1-1200-25 | 1525 | 1420 | 1350 | 5 | 1192 | 62 | 160 | 1288 | 1228 | 32 | 56 |
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 4,0 MPa (40 kgf/cm2) | |||||||||||
| 1-10-40 | 90 | 60 | 42 | 2 | 8 | 14 | 33 | 26 | 15 | 4 | 14 |
| 1-15-40 | 95 | 65 | 47 | 2 | 12 | 14 | 33 | 30 | 19 | 4 | 14 |
| 1-20-40 | 105 | 75 | 58 | 2 | 18 | 14 | 34 | 38 | 26 | 4 | 14 |
| 1-25-40 | 115 | 85 | 68 | 2 | 25 | 14 | 36 | 45 | 33 | 4 | 14 |
| 1-32-40 | 135 | 100 | 78 | 2 | 31 | 16 | 43 | 56 | 39 | 4 | 18 |
| 1-40-40 | 145 | 110 | 88 | 3 | 38 | 16 | 45 | 64 | 46 | 4 | 18 |
| 1-50-40 | 160 | 125 | 102 | 3 | 48 | 17 | 45 | 76 | 58 | 4 | 18 |
| 1-65-40 | 180 | 145 | 122 | 3 | 66 | 19 | 50 | 96 | 77 | 8 | 18 |
| 1-80-40 | 195 | 160 | 133 | 3 | 78 | 21 | 55 | 112 | 90 | 8 | 18 |
| 1-100-40 | 230 | 190 | 158 | 3 | 96 | 23 | 65 | 138 | 110 | 8 | 22 |
| 1-125-40 | 270 | 220 | 184 | 3 | 120 | 25 | 65 | 160 | 135 | 8 | 26 |
| 1-150-40 | 300 | 250 | 212 | 3 | 145 | 27 | 68 | 186 | 161 | 8 | 26 |
| 1-175-40 | 350 | 295 | 242 | 3 | 177 | 33 | 85 | 226 | 196 | 12 | 30 |
| 1-200-40 | 375 | 320 | 285 | 3 | 200 | 35 | 85 | 250 | 222 | 12 | 30 |
| 1-225-40 | 415 | 355 | 315 | 3 | 226 | 37 | 95 | 280 | 248 | 12 | 33 |
| 1-250-40 | 445 | 385 | 345 | 3 | 252 | 39 | 98 | 310 | 278 | 12 | 33 |
| 1-300-40 | 510 | 450 | 410 | 4 | 301 | 42 | 112 | 368 | 330 | 16 | 33 |
| 1-350-40 | 570 | 510 | 465 | 4 | 351 | 48 | 116 | 418 | 382 | 16 | 33 |
| 1-400-40 | 655 | 585 | 535 | 4 | 398 | 54 | 135 | 480 | 432 | 16 | 39 |
| 1-450-40 | 680 | 610 | 560 | 4 | 448 | 56 | 135 | 530 | 484 | 20 | 39 |
| 1-500-40 | 755 | 670 | 615 | 4 | 495 | 58 | 140 | 580 | 535 | 20 | 45 |
| 1-600-40 | 890 | 795 | 735 | 5 | 595 | 58 | 140 | 686 | 636 | 20 | 52 |
| 1-700-40 | 995 | 900 | 810 | 5 | 695 | 63 | 160 | 790 | 726 | 24 | 52 |
| 1-800-40 | 1135 | 1030 | 960 | 5 | 795 | 71 | 190 | 908 | 826 | 24 | 56 |
| 1-900-40 | 1250 | 1140 | 1070 | 5 | 895 | 74 | 215 | 1024 | 926 | 28 | 56 |
| 1-1000-40 | 1360 | 1250 | 1180 | 5 | 995 | 77 | 235 | 1140 | 1028 | 28 | 56 |
| 1-1200-40 | 1575 | 1460 | 1380 | 5 | 1195 | 80 | 250 | 1350 | 1228 | 32 | 62 |
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 6,3 MPa (63 kgf/cm2) | |||||||||||
| 1-10-63 | 100 | 70 | 42 | 2 | 8 | 16 | 46 | 34 | 15 | 4 | 14 |
| 1-15-63 | 105 | 75 | 47 | 2 | 12 | 16 | 46 | 38 | 19 | 4 | 14 |
| 1-20-63 | 125 | 90 | 58 | 2 | 18 | 18 | 54 | 48 | 26 | 4 | 18 |
| 1-25-63 | 135 | 100 | 68 | 2 | 25 | 20 | 56 | 52 | 33 | 4 | 18 |
| 1-32-63 | 150 | 110 | 78 | 2 | 31 | 21 | 60 | 64 | 39 | 4 | 22 |
| 1-40-63 | 165 | 125 | 88 | 3 | 37 | 21 | 65 | 74 | 46 | 4 | 22 |
| 1-50-63 | 175 | 135 | 102 | 3 | 47 | 23 | 67 | 86 | 58 | 4 | 22 |
| 1-65-63 | 200 | 160 | 122 | 3 | 64 | 25 | 72 | 106 | 77 | 8 | 22 |
| 1-80-63 | 210 | 170 | 133 | 3 | 77 | 27 | 72 | 120 | 90 | 8 | 22 |
| 1-100-63 | 250 | 200 | 158 | 3 | 94 | 29 | 77 | 140 | 110 | 8 | 26 |
| 1-125-63 | 295 | 240 | 184 | 3 | 118 | 33 | 95 | 172 | 135 | 8 | 30 |
| 1-150-63 | 340 | 280 | 212 | 3 | 142 | 35 | 105 | 206 | 161 | 8 | 33 |
| 1-175-63 | 370 | 310 | 212 | 3 | 174 | 39 | 105 | 232 | 196 | 12 | 33 |
| 1-200-63 | 405 | 345 | 285 | 3 | 198 | 41 | 110 | 264 | 222 | 12 | 33 |
| 1-225-63 | 430 | 370 | 315 | 3 | 222 | 43 | 115 | 290 | 248 | 12 | 33 |
| 1-250-63 | 470 | 400 | 345 | 3 | 246 | 45 | 115 | 316 | 278 | 12 | 39 |
| 1-300-63 | 530 | 460 | 410 | 4 | 294 | 50 | 120 | 370 | 330 | 16 | 39 |
| 1-350-63 | 595 | 525 | 465 | 4 | 342 | 56 | 140 | 430 | 382 | 16 | 39 |
| 1-400-63 | 670 | 585 | 535 | 4 | 386 | 62 | 155 | 484 | 432 | 16 | 45 |
| 1-500-63 | 800 | 705 | 615 | 4 | 485 | 66 | 165 | 594 | 535 | 20 | 52 |
| 1-600-63 | 925 | 820 | 735 | 5 | 585 | 71 | 180 | 704 | 636 | 20 | 56 |
| 1-700-63 | 1045 | 935 | 840 | 5 | 685 | 76 | 225 | 820 | 726 | 24 | 56 |
| 1-800-63 | 1165 | 1050 | 960 | 5 | 785 | 85 | 225 | 920 | 826 | 24 | 62 |
| 1-900-63 | 1285 | 1170 | 1070 | 5 | 885 | 88 | 265 | 1050 | 926 | 28 | 62 |
| 1-1000-63 | 1415 | 1290 | 1180 | 5 | 985 | 92 | 280 | 1160 | 1028 | 28 | 70 |
| 1-1200-63 | 1665 | 1530 | 1380 | 5 | 1185 | 95 | 315 | 1386 | 1228 | 32 | 78 |
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 10 MPa (100 kgf/cm2) | |||||||||||
| 1-10-100 | 100 | 70 | 42 | 2 | 8 | 16 | 43 | 34 | 15 | 4 | 14 |
| 1-15-100 | 105 | 75 | 47 | 2 | 12 | 18 | 46 | 38 | 19 | 4 | 14 |
| 1-20-100 | 125 | 90 | 58 | 2 | 18 | 20 | 51 | 48 | 26 | 4 | 18 |
| 1-25-100 | 135 | 100 | 68 | 2 | 25 | 22 | 56 | 52 | 33 | 4 | 18 |
| 1-32-100 | 150 | 110 | 78 | 2 | 31 | 22 | 60 | 64 | 39 | 4 | 22 |
| 1-40-100 | 165 | 125 | 88 | 3 | 37 | 23 | 67 | 76 | 46 | 4 | 22 |
| 1-50-100 | 195 | 145 | 102 | 3 | 45 | 25 | 68 | 86 | 58 | 4 | 26 |
| 1-65-100 | 220 | 170 | 122 | 3 | 62 | 29 | 80 | 110 | 77 | 8 | 26 |
| 1-80-100 | 230 | 180 | 133 | 3 | 75 | 31 | 87 | 124 | 90 | 8 | 26 |
| 1-100-100 | 265 | 210 | 158 | 3 | 92 | 35 | 97 | 146 | 110 | 8 | 30 |
| 1-125-100 | 310 | 250 | 184 | 3 | 112 | 39 | 112 | 180 | 135 | 8 | 33 |
| 1-150-100 | 350 | 290 | 212 | 3 | 136 | 43 | 125 | 214 | 161 | 12 | 33 |
| 1-175-100 | 380 | 320 | 242 | 3 | 166 | 45 | 125 | 246 | 196 | 12 | 33 |
| 1-200-100 | 430 | 360 | 285 | 3 | 190 | 51 | 140 | 276 | 222 | 12 | 39 |
| 1-225-100 | 470 | 400 | 315 | 3 | 212 | 53 | 155 | 312 | 248 | 12 | 39 |
| 1-250-100 | 500 | 430 | 345 | 3 | 236 | 57 | 160 | 340 | 278 | 12 | 39 |
| 1-300-100 | 585 | 500 | 410 | 4 | 284 | 66 | 180 | 400 | 330 | 16 | 45 |
| 1-350-100 | 655 | 560 | 465 | 4 | 332 | 72 | 195 | 460 | 382 | 16 | 52 |
| 1-400-100 | 715 | 620 | 535 | 4 | 376 | 76 | 200 | 510 | 432 | 16 | 52 |
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 16 MPa (160 kgf/cm2) | |||||||||||
| 1-15-160 | 105 | 75 | 47 | 2 | 12 | 18 | 50 | 38 | 19 | 4 | 14 |
| 1-20-160 | 125 | 90 | 58 | 2 | 18 | 20 | 56 | 48 | 26 | 4 | 18 |
| 1-25-160 | 135 | 100 | 68 | 2 | 25 | 22 | 56 | 52 | 33 | 4 | 18 |
| 1-32-160 | 150 | 110 | 78 | 2 | 31 | 22 | 65 | 64 | 39 | 4 | 22 |
| 1-40-160 | 165 | 125 | 88 | 3 | 37 | 25 | 72 | 76 | 46 | 4 | 22 |
| 1-50-160 | 195 | 145 | 102 | 3 | 45 | 27 | 75 | 86 | 58 | 4 | 26 |
| 1-65-160 | 220 | 170 | 122 | 3 | 62 | 31 | 85 | 110 | 77 | 8 | 26 |
| 1-80-160 | 230 | 180 | 133 | 3 | 75 | 33 | 90 | 124 | 90 | 8 | 26 |
| 1-100-160 | 265 | 210 | 158 | 3 | 92 | 37 | 100 | 146 | 110 | 8 | 30 |
| 1-125-160 | 310 | 250 | 184 | 3 | 112 | 41 | 115 | 180 | 135 | 8 | 33 |
| 1-150-160 | 350 | 290 | 212 | 3 | 136 | 47 | 130 | 214 | 161 | 12 | 33 |
| 1-175-160 | 380 | 320 | 242 | 3 | 166 | 51 | 135 | 246 | 196 | 12 | 33 |
| 1-200-160 | 430 | 360 | 285 | 3 | 190 | 57 | 145 | 276 | 222 | 12 | 39 |
| 1-225-160 | 470 | 400 | 315 | 3 | 212 | 60 | 160 | 312 | 248 | 12 | 39 |
| 1-250-160 | 500 | 430 | 345 | 3 | 236 | 65 | 165 | 340 | 278 | 12 | 39 |
| 1-300-160 | 585 | 500 | 410 | 4 | 284 | 74 | 185 | 400 | 330 | 16 | 45 |
| Nomencatlure | Dimensions, mm | ||||||||||
| D | D1 | D2 | h | d1 | b | h4 | Dm | Dn | n, Number of holes | d | |
| Pnom = 20 MPa (200 kgf/cm2) | |||||||||||
| 1-15-200 | 120 | 82 | 47 | 2 | 14 | 24 | 52 | 40 | 23 | 4 | 22 |
| 1-20-200 | 130 | 90 | 58 | 2 | 19 | 26 | 55 | 46 | 29 | 4 | 22 |
| 1-25-200 | 150 | 102 | 68 | 2 | 25 | 28 | 60 | 54 | 36 | 4 | 26 |
| 1-32-200 | 160 | 115 | 78 | 2 | 31 | 30 | 65 | 64 | 43 | 4 | 26 |
| 1-40-200 | 170 | 124 | 88 | 3 | 36 | 31 | 72 | 74 | 49 | 4 | 26 |
| 1-50-200 | 210 | 160 | 102 | 3 | 46 | 37 | 95 | 105 | 61 | 8 | 26 |
| 1-65-200 | 260 | 203 | 122 | 3 | 68 | 45 | 118 | 138 | 90 | 8 | 30 |
| 1-80-200 | 290 | 230 | 133 | 3 | 80 | 51 | 132 | 162 | 110 | 8 | 33 |
| 1-100-200 | 360 | 292 | 158 | 3 | 102 | 63 | 175 | 208 | 135 | 8 | 39 |
| 1-125-200 | 385 | 318 | 184 | 3 | 130 | 73 | 175 | 234 | 170 | 12 | 39 |
| 1-150-200 | 440 | 360 | 212 | 3 | 150 | 79 | 190 | 266 | 196 | 12 | 45 |
| 1-175-200 | 475 | 394 | 242 | 3 | 170 | 81 | 195 | 294 | 222 | 12 | 45 |
| 1-200-200 | 535 | 440 | 285 | 3 | 192 | 89 | 230 | 340 | 248 | 12 | 52 |
| 1-225-200 | 580 | 483 | 315 | 3 | 212 | 87 | 245 | 374 | 278 | 12 | 56 |
| 1-250-200 | 670 | 572 | 345 | 3 | 254 | 107 | 300 | 460 | 330 | 16 | 56 |
| GOST12821 Russian Standard Welding Neck Flange | |||||||||
| Material: carbon steel, alloy steel, stainless steel | |||||||||
| Nominal diameter DN | Nominal pressure PN | ||||||||
| PN0.6 | PN1.0 | PN1.6 | PN2.5 | PN4.0 | PN6.3 | PN10.0 | PN16.0 | PN20.0 | |
| 10 | 0.34 | 10 | 0.5 | 10 | 0.59 | 10 | 0.68 | 10 | 0.68 |
| 15 | 0.4 | 15 | 0.58 | 15 | 0.68 | 15 | 0.79 | 15 | 0.79 |
| 20 | 0.53 | 20 | 0.87 | 20 | 0.87 | 20 | 0.97 | 20 | 0.97 |
| 25 | 0.76 | 25 | 1.05 | 25 | 1.05 | 25 | 1.18 | 25 | 1.18 |
| 32 | 1.1 | 32 | 1.54 | 32 | 1.54 | 32 | 1.83 | 32 | 1.83 |
| 40 | 1.36 | 40 | 1.83 | 40 | 1.85 | 40 | 2.19 | 40 | 2.19 |
| 50 | 1.53 | 50 | 2.26 | 50 | 2.28 | 50 | 2.78 | 50 | 2.81 |
| 65 | 1.97 | 65 | 3.17 | 65 | 3.19 | 65 | 3.71 | 65 | 3.71 |
| 80 | 2.76 | 80 | 3.67 | 80 | 4.21 | 80 | 4.44 | 80 | 4.8 |
| 100 | 3.35 | 100 | 4.7 | 100 | 4.9 | 100 | 6.51 | 100 | 7.4 |
| 125 | 4.66 | 125 | 6.71 | 125 | 6.75 | 125 | 9.41 | 125 | 10 |
| 150 | 5.37 | 150 | 8.17 | 150 | 8.3 | 150 | 12.52 | 150 | 13.03 |
| 175 | 7.32 | 175 | 9.71 | 175 | 10.37 | 175 | 13.88 | 175 | 20.75 |
| 200 | 8.37 | 200 | 11.35 | 200 | 11.79 | 200 | 17.44 | 200 | 24.44 |
| 225 | 9.45 | 225 | 13.24 | 225 | 14.12 | 225 | 21.56 | 225 | 31.33 |
| 250 | 10.99 | 250 | 14.64 | 250 | 17.36 | 250 | 24.4 | 250 | 37.59 |
| 300 | 14.82 | 300 | 18.66 | 300 | 22.76 | 300 | 33.29 | 300 | 57.1 |
| 350 | 17.69 | 350 | 24 | 350 | 32.04 | 350 | 46.57 | 350 | 70.34 |
| 400 | 20.55 | 400 | 30 | 400 | 43 | 400 | 64.81 | 400 | 106.76 |
| 450 | 23.63 | 450 | 33.33 | 450 | 54 | 450 | 72.26 | 450 | 107 |
| 500 | 26.63 | 500 | 39.2 | 500 | 70.97 | 500 | 88.91 | 500 | 132.33 |
| 600 | 35.79 | 600 | 48.8 | 600 | 99.3 | 600 | 123.7 | 600 | 180.95 |
| 700 | 44.31 | 700 | 65.26 | 700 | 105.9 | 700 | 166.81 | 700 | 228.25 |
| 800 | 56.17 | 800 | 87.24 | 800 | 130.57 | 800 | 213.9 | 800 | 343.69 |
| 900 | 66.79 | 900 | 103.02 | 900 | 157.83 | 900 | 252.91 | 900 | 436.54 |
| 1000 | 73.51 | 1000 | 119.19 | 1000 | 203.39 | 1000 | 312.12 | 1000 | 540.75 |
| 1200 | 111.43 | 1200 | 179.91 | 1200 | 284.94 | 1200 | 387.5 | 1200 | 690.59 |
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Company
Cangzhou Zhengsheng Pipeline Equipment Co., Ltd.
