American Flange Standards
| CL 2500 | FLANGE THICKNESS | LTB | DRILLING DATA | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOMINAL PIPE SIZE | FLANGE OUTSIDE DIAMETER | THICKNESS OF FLANGE MIN | BOSSED LENGTH | WELD NECK LENGTH | LAP JOINT LENGTH | LONG WELD NECK LENGTH | PITCH CIRCLE DIAMETER | BOLT HOLE DIAMETER | NUMBER OF BOLT HOLES | NOMINAL PIPE SIZE | ||
| MM | INCH | OD | T & T1 | L | L1 | L2 | L3 | PCD | H | # | MM | INCH |
| 15 | 1/2 | 135 | 30.2 | 47.0 | 80 | 40 | 229 | 88.9 | 22 | 4 | 15 | 1/2 |
| 20 | 3/4 | 140 | 31.8 | 50.0 | 86 | 43 | 229 | 95.2 | 22 | 4 | 20 | 3/4 |
| 25 | 1 | 160 | 35 | 55.0 | 96 | 48 | 229 | 108 | 26 | 4 | 25 | 1 |
| 32 | 1 1/4 | 185 | 39.1 | 59.0 | 102 | 52 | 229 | 130.2 | 29 | 4 | 32 | 1 1/4 |
| 40 | 1 1/2 | 205 | 44.5 | 67.0 | 118 | 60 | 229 | 146 | 32 | 4 | 40 | 1 1/2 |
| 50 | 2 | 235 | 50.9 | 77.0 | 134 | 70 | 229 | 171.4 | 29 | 8 | 50 | 2 |
| 65 | 2 1/2 | 265 | 57.2 | 86.0 | 150 | 79 | 229 | 196.8 | 32 | 8 | 65 | 2 1/2 |
| 80 | 3 | 305 | 66.7 | 175 | 92 | 229 | 228.6 | 35 | 8 | 80 | 3 | |
| 100 | 4 | 385 | 76.2 | 197 | 108 | 305 | 273 | 42 | 8 | 100 | 4 | |
| 125 | 5 | 420 | 92.1 | 235 | 130 | 305 | 323.8 | 48 | 8 | 125 | 5 | |
| 150 | 6 | 485 | 108 | 280 | 152 | 305 | 368.3 | 54 | 8 | 150 | 6 | |
| 200 | 8 | 550 | 127 | 324 | 178 | 305 | 438.2 | 54 | 12 | 200 | 8 | |
| 250 | 10 | 675 | 165.1 | 426 | 229 | 406 | 539.8 | 67 | 12 | 250 | 10 | |
| 300 | 12 | 760 | 184.2 | 471 | 254 | 406 | 619.1 | 73 | 12 | 300 | 12 |
NOTES:
(1) Schedule of weld neck to be advised.
(2) LTB and bore size or schedule to be specified at time of order
