ANSIB16.5法兰尺寸标准

section 21 | technical data 371 contents 125/150 lbs 300 lbs 400 lbs 600 lbs 900 lbs 1500 lbs 2500 lbs DN inch mm inch mm inch mm inch mm inch mm inch mm inch mm A 31/2 88.9 33/4 95.2 33/4 95.2 33/4 95.2 43/4 121 43/4 121 51/4 133.4 b 7/16 11.1 9/16 14.3 9/16 14.3 9/16 14.3 7/8 22.2 7/8 22.2 13/16 30.2 1/2” D2 13/8 34.9 13/8 34.9 13/8 34.9 13/8 34.9 13/8 34.9 13/8 34.9 13/8 34.9 D1 23/8 60.3 25/8 66.7 25/8 66.7 25/8 66.7 31/4 82.6 31/4 82.6 31/2 88.9 n 4 4 4 4 4 4 4 4 4 4 4 4 4 4 d 5/8 15.9 5/8 15.9 5/8 15.9 5/8 15.9 7/8 22.2 7/8 22.2 7/8 22.2 A 37/8 98.4 45/8 117.5 45/8 117.5 45/8 117.5 51/8 130 51/8 130 51/2 139.7 b 1/2 12.7 5/8 15.9 5/8 15.9 5/8 15.9 1 25.4 1 25.4 11/4 31.8 3/4” D2 111/16 42.9 111/16 42.9 111/16 42.9 111/16 42.9 111/16 42.9 111/16 42.9 111/16 42.9 D1 23/4 69.8 31/4 82.5 31/4 82.5 31/4 82.5 31/2 88.9 31/2 88.9 33/4 95.2 n 4 4 4 4 4 4 4 4 4 4 4 4 4 4 d 5/8 15.9 3/4 19 3/4 19 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2 A 41/4 108 47/8 123.8 47/8 123.8 47/8 123.8 57/8 149.2 57/8 149.2 61/4 159 b 9/16 14.3 11/16 17.5 11/16 17.5 11/16 17.5 11/8 28.6 11/8 28.6 13/8 34.9 1” D2 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8 2 50.8 D1 31/8 79.4 31/2 88.9 31/2 88.9 31/2 88.9 4 102 4 102 41/4 108 n 4 4 4 4 4 4 4 4 4 4 4 4 4 4 d 5/8 15.9 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 1 25.4 A 45/8 117.5 51/4 133.4 51/4 133.4 51/4 133.4 61/4 159 61/4 159 71/4 184.2 b 5/8 15.9 3/4 19 13/16 20.6 13/16 20.6 11/8 28.6 11/8 28.6 11/2 38.1 11/4” D2 21/2 63.5 21/2 63.5 21/2 63.5 21/2 63.5 21/2 63.5 21/2 63.5 21/2 63.5 D1 31/2 88.9 37/8 98.4 37/8 98.4 37/8 98.4 43/8 111 43/8 111 51/8 130 n 4 4 4 4 4 4 4 4 4 4 4 4 4 4 d 5/8 15.9 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 11/8 28.6 A 5 127 61/8 155.6 61/8 155.6 61/8 155.6 7 177.8 7 177.8 8 203 b 11/16 17.5 13/16 20.6 7/8 22.2 7/8 22.2 11/4 31.8 11/4 31.8 13/4 44.5 11/2” D2 27/8 73 27/8 73 27/8 73 27/8 73 27/8 73 27/8 73 27/8 73 D1 37/8 98.4 41/2 114 41/2 114 41/2 114 47/8 124 47/8 124 53/4 146 n 4 4 4 4 4 4 4 4 4 4 4 4 4 4 d 5/8 15.9 7/8 22.2 7/8 22.2 7/8 22.2 11/8 28.6 11/8 28.6 11/4 31.8 A 6 152.4 61/2 165.1 61/2 165.1 61/2 165.1 81/2 215.9 81/2 215.9 91/4 234.9 b 3/4 19 7/8 22.2 1 25.4 1 25.4 11/2 38.1 11/2 38.1 2 50.8 2” D2 35/8 92.1 35/8 92.1 35/8 92.1 35/8 92.1 35/8 92.1 35/8 92.1 35/8 92.1 D1 43/4 121 5 127 5 127 5 127 61/2 165.1 61/2 165.1 63/4 171 n 4 4 8 8 8 8 8 8 8 8 8 8 8 8 d 3/4 19 3/4 19 3/4 19 3/4 19 1 25.4 1 25.4 11/8 28.6 A 7 177.8 71/2 190.5 71/2 190.5 71/2 190.5 95/8 244 95/8 244 101/2 266.7 b 7/8 22.2 1 25.4 11/8 28.6 11/8 28.6 15/8 41.3 15/8 41.3 21/4 57.2 21/2” D2 41/8 104.8 41/8 104.8 41/8 104.8 41/8 104.8 41/8 105 41/8 105 41/8 105 D1 51/2 139.7 57/8 149.2 57/8 149.2 57/8 149.2 71/2 190.5 71/2 190.5 73/4 197 n 4 4 8 8 8 8 8 8 8 8 8 8 8 8 d 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2 11/8 28.6 11/8 28.6 11/4 31.8 continued on the next page ä flange dimensions and drilling to ANSI B 16.5 DN = diameter nominal (size) A = flange ∅ b = thickness of flange D2 = diameter of raised face ∅ D1 = diameter of bolt circle ∅ n = number of bolts d = diameter of bolt holes ∅ h = height of raised face (RF) h* = 1/16” = 1.6 mm for ANSI Class 150 - 300 h* = 1/4” = 6.4 mm for ANSI Class 400 - 2500 * for steel flanges only b = raised face included for ANSI Class 150 - 300 b = raised face not included for ANSI Class 400 - 2500 372 contents 125/150 lbs 300 lbs 400 lbs 600 lbs 900 lbs 1500 lbs 2500 lbs DN inch mm inch mm inch mm inch mm inch mm inch mm inch mm A 71/2 190.5 81/4 209.6 81/4 209.6 81/4 209.6 91/2 241 101/2 267 12 305 b 15/16 23.8 11/8 28.6 11/4 31.8 11/4 31.8 11/2 38.1 17/8 47.6 25/8 66.7 3” D2 5 127 5 127 5 127 5 127 5 127 5 127 5 127 D1 6 152.4 65/8 168.3 65/8 168.3 65/8 168.3 71/2 190.5 8 203 9 228.6 n 4 4 8 8 8 8 8 8 8 8 8 8 8 8 d 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2 1 25.4 11/4 31.8 13/8 34.9 A 81/2 215.9 9 228.6 9 228.6 9 228.6 b 15/16 23.8 13/16 30.2 13/8 34.9 13/8 34.9 31/2” D2 51/2 139.7 51/2 139.7 51/2 139.7 51/2 139.7 D1 7 177.8 71/4 184.2 71/4 184.2 71/4 184.2 n 8 8 8 8 8 8 8 8 d 3/4 19 7/8 22.2 1 25.4 1 25.4 A 9 228.6 10 254 10 254 103/4 273 111/2 292 121/4 311 14 356 b 15/16 23.8 11/4 31.7 13/8 34.9 11/2 38.1 13/4 44.4 21/8 54 3 76.2 4” D2 63/16 157.2 63/16 157.2 63/16 157.2 63/16 157.2 63/16 157.2 63/16 157.2 63/16 157.2 D1 71/2 190 77/8 200 77/8 200 81/2 215.9 91/4 235 91/2 241 103/4 273 n 8 8 8 8 8 8 8 8 8 8 8 8 8 8 d 3/4 19 7/8 22.2 1 25.4 1 25.4 11/4 31.8 13/8 34.9 15/8 41.3 A 10 254 11 279.4 11 279.4 13 330.2 133/4 349 143/4 375 161/2 419 b 15/16 23.8 13/8 34.9 11/2 38.1 13/4 44.4 2 50.8 27/8 73 35/8 92.1 5” D2 75/16 185.7 75/16 185.7 75/16 185.7 75/16 185.7 75/16 185.7 75/16 185.7 75/16 185.7 D1 81/2 215.9 91/4 234.9 91/4 234.9 101/2 266.7 11 279 111/2 292 123/4 324 n 8 8 8 8 8 8 8 8 8 8 8 8 8 8 d 7/8 22.2 7/8 22.2 1 25.4 11/8 28.6 13/8 34.9 15/8 41.3 17/8 47.6 A 11 279 121/2 317.5 121/2 317.5 14 355.6 15 381 151/2 394 19 483 b 1 25.4 17/16 36.5 15/8 41.3 17/8 47.6 23/16 55.6 31/4 82.6 41/4 108 6” D2 81/2 216 81/2 215.9 81/2 215.9 81/2 215.9 81/2 215.9 81/2 215.9 81/2 216 D1 91/2 241 105/8 269.9 105/8 269.9 111/2 292.1 121/2 318 121/2 318 141/2 368 n 8 8 12 12 12 12 12 12 12 12 12 12 8 8 d 7/8 22.2 7/8 22.2 1 25.4 11/8 28.6 11/4 31.8 11/2 38.1 21/8 54 A 131/2 342.9 15 381 15 381 161/2 419 181/2 470 19 482.6 213/4 552 b 11/8 28.6 15/8 41.3 17/8 47.6 23/16 55.6 21/2 63.5 35/8 92.1 5 127 8” D2 105/8 269.9 105/8 269.9 105/8 269.9 105/8 269.9 105/8 269.9 105/8 269.9 105/8 269.9 D1 113/4 298.4 13 330.2 13 330.2 133/4 349.2 151/2 394.2 151/2 394.2 171/4 438 n 8 8 12 12 12 12 12 12 12 12 12 12 12 12 d 7/8 22.2 1 25.4 11/8 28.6 11/4 31.8 11/2 38.1 13/4 44.5 21/8 54 A 16 406.4 171/2 444.5 171/2 444.5 20 508 211/2 546 23 584 261/2 673 b 13/16 30.2 17/8 47.6 21/8 54 21/2 63.5 23/4 69.8 41/4 108 61/2 165 10” D2 123/4 323.8 123/4 323.8 123/4 323.8 123/4 323.8 123/4 323.8 123/4 323.8 123/4 323.8 D1 141/4 361.9 151/4 387.4 151/4 387.4 17 431.8 181/2 470 19 482.6 211/4 540 n 12 12 16 16 16 16 16 16 16 16 12 12 12 12 d 1 25.4 11/8 28.6 11/4 31.8 13/8 34.9 11/2 38.1 2 50.8 25/8 66.7 continued on the next page ä flange dimensions and drilling to ANSI B 16.5 (continued) DN = diameter nominal (size) A = flange ∅ b = thickness of flange D2 = diameter of raised face ∅ D1 = diameter of bolt circle ∅ n = number of bolts d = diameter of bolt holes ∅ h = height of raised face (RF) h* = 1/16” = 1.6 mm for ANSI Class 150 - 300 h* = 1/4” = 6.4 mm for ANSI Class 400 - 2500 * for steel flanges only b = raised face included for ANSI Class 150 - 300 b = raised face not included for ANSI Class 400 - 2500 section 21 | technical data 373 contents 125/150 lbs 300 lbs 400 lbs 600 lbs 900 lbs 1500 lbs 2500 lbs DN inch mm inch mm inch mm inch mm inch mm inch mm inch mm A 19 482.6 201/2 520.7 201/2 520.7 22 558.8 24 610 261/2 673 30 762 b 11/4 31.7 2 50.8 21/4 57.2 25/8 66.7 31/8 79.4 47/8 124 71/4 184 12” D2 15 381 15 381 15 381 15 381 15 381 15 381 15 381 D1 17 431.8 173/4 450.9 173/4 450.9 191/4 488.9 21 533.4 221/2 571.5 243/8 619 n 12 12 16 16 16 16 20 20 20 20 16 16 12 12 d 1 25.4 11/4 31.8 13/8 34.9 13/8 34.9 11/2 38.1 21/8 54 27/8 73 A 21 533.4 23 584 23 584 233/4 603 251/4 641 291/2 749 b 13/8 34.9 21/8 54 23/8 60.3 23/4 69.8 33/8 85.7 51/4 133 14” D2 161/4 412.7 161/4 412.7 161/4 412.7 161/4 412.7 161/4 412.7 161/4 412.7 D1 183/4 476.2 201/4 514.4 201/4 514.4 203/4 527 22 558.8 25 635 n 12 12 20 20 20 20 20 20 20 20 16 16 d 11/8 28.6 11/4 31.8 13/8 34.9 11/2 38.1 15/8 41.3 23/8 60.3 A 231/2 596.9 251/2 647.7 251/2 648 27 686 273/4 705 321/2 826 b 17/16 36.5 21/4 57.2 21/2 63.5 3 76.2 31/2 88.9 53/4 146 16” D2 181/2 470 181/2 470 181/2 470 181/2 470 181/2 470 181/2 470 D1 211/4 539.8 221/2 571.5 221/2 571.5 233/4 603.3 241/4 616 273/4 705 n 16 16 20 20 20 20 20 20 20 20 16 16 d 11/8 28.6 13/8 34.9 11/2 38.1 15/8 41.3 13/4 44.4 25/8 66.7 A 25 635 28 711 28 711 291/4 743 31 787 36 914 b 19/16 39.7 23/8 60.3 25/8 66.7 31/4 82.6 4 102 63/8 162 18” D2 21 533.4 21 533.4 21 533.4 21 533.4 21 533.4 21 533.4 D1 223/4 577.9 243/4 628.7 243/4 628.7 253/4 654.1 27 685.8 301/2 775 n 16 16 24 24 24 24 20 20 20 20 16 16 d 11/4 31.8 13/8 34.9 11/2 38.1 13/4 44.5 2 50.8 27/8 73 A 271/2 698.5 301/2 774.7 301/2 774.7 32 813 333/4 857 383/4 984 b 111/16 42.9 21/2 63.5 23/4 69.8 31/2 88.9 41/4 108 7 178 20” D2 23 584.2 23 584.2 23 584.2 23 584.2 23 584.2 23 584.2 D1 25 635 27 685.8 27 685.8 281/2 724 291/2 749.3 323/4 832 n 20 20 24 24 24 24 24 24 20 20 16 16 d 11/4 31.8 13/8 34.9 15/8 41.3 13/4 44.5 21/8 54 31/8 79.4 A 32 812.8 36 914 36 914 37 940 41 1041 46 1168 b 17/8 47.6 23/4 69.8 3 76.2 4 102 51/2 140 8 203 24” D2 241/4 692.2 271/4 692.2 271/4 692.2 271/4 692.2 271/4 692.2 271/4 692.2 D1 291/2 749.3 32 812.8 32 812.8 33 838.2 351/2 902 39 991 n 20 20 24 24 24 24 24 24 20 20 16 16 d 13/8 34.9 15/8 41.3 17/8 47.6 2 50.8 25/8 66.7 35/8 92.1 flange dimensions and drilling to ANSI B 16.5 (continued) DN = diameter nominal (size) A = flange ∅ b = thickness of flange D2 = diameter of raised face ∅ D1 = diameter of bolt circle ∅ n = number of bolts d = diameter of bolt holes ∅ h = height of raised face (RF) h* = 1/16” = 1.6 mm for ANSI Class 150 - 300 h* = 1/4” = 6.4 mm for ANSI Class 400 - 2500 * for steel flanges only b = raised face included for ANSI Class 150 - 300 b = raised face not included for ANSI Class 400 - 2500