THFF
| NOMINAL PIPE SIZE | OUTSIDE DIA.(MM) | DIA. OF BORE | THICKNESS MIN (MM) | LENGTH THRU HUB (MM) | THREAD LENGTH | DIA. AT BASE OF HUB (MM) | NUMBER OF BOLT HOLES | DIA. OF HOLES(MM) | DIA. OF BOLT CIRCLE (MM) | APPROX WEIGHT(KG) |
|---|---|---|---|---|---|---|---|---|---|---|
| D | do | t | H | T | M | h | C | |||
| 1/2" | 120.6 | 23.6 | 22.3 | 31.7 | 22.3 | 38.1 | 4 | 22.3 | 82.5 | 1.8 |
| 3/4" | 130.0 | 29.0 | 25.4 | 35.0 | 25.4 | 44.4 | 4 | 22.3 | 88.9 | 2.3 |
| 1" | 149.3 | 35.8 | 28.4 | 41.1 | 28.4 | 52.3 | 4 | 25.4 | 101.6 | 3.6 |
| 1.1/4" | 158.7 | 44.4 | 28.4 | 41.1 | 30.2 | 63.5 | 4 | 25.4 | 111.2 | 4 |
| 1.1/2" | 177.8 | 50.5 | 31.7 | 44.5 | 31.7 | 69.8 | 4 | 28.4 | 123.9 | 5.4 |
| 2" | 215.9 | 63.5 | 38.1 | 57.1 | 38.1 | 104.6 | 8 | 25.4 | 165.1 | 10 |
| 2.1/2" | 244.3 | 76.2 | 41.1 | 63.5 | 47.7 | 123.9 | 8 | 28.4 | 190.5 | 14 |
| 3" | 266.7 | 92.2 | 47.7 | 73.1 | 50.8 | 133.3 | 8 | 31.7 | 203.2 | 18 |
| 4" | 311.1 | 117.6 | 53.8 | 90.4 | 57.1 | 162.0 | 8 | 35.1 | 241.3 | 40 |
| 5" | 374.6 | 144.5 | 73.1 | 104.6 | 63.5 | 196.8 | 8 | 41.1 | 292.1 | 52 |
| 6" | 393.7 | 171.4 | 82.5 | 119.1 | 69.8 | 228.6 | 12 | 38.1 | 317.5 | 61 |
| 8" | 482.6 | 222.2 | 91.9 | 142.7 | 76.2 | 292.1 | 12 | 44.4 | 393.7 | 103 |
| 10" | 584.2 | 276.3 | 107.9 | 158.7 | 84.0 | 368.3 | 12 | 50.8 | 482.6 | 175 |
| 12" | 673.1 | 328.7 | 123.9 | 180.8 | 91.9 | 450.8 | 16 | 53.8 | 571.5 | 264 |