


Dimensions in accordance with BS10:62.
Max hydraulic test pressure of 300lbf/in2
Imperial Measuements (inches)
| NB | OD | Thickness | PCD | No of Bolts | Bolt Size |
| 1/2 | 3 3/4 | 1/4 | 2 5/8 | 4 | 1/2 |
| 3/4 | 4 | 1/4 | 2 7/8 | 4 | 1/2 |
| 1 | 4 1/2 | 9/32 | 3 1/4 | 4 | 1/2 |
| 1 1/4 | 4 3/4 | 5/16 | 3 7/16 | 4 | 1/2 |
| 1 1/2 | 5 1/4 | 11/32 | 3 7/8 | 4 | 1/2 |
| 2 | 6 | 3/8 | 4 1/2 | 4 | 5/8 |
| 2 1/2 | 6 1/2 | 13/32 | 5 | 4 | 5/8 |
| 3 | 7 1/4 | 7/16 | 5 3/4 | 4 | 5/8 |
| 3 1/2 | 8 | 15/32 | 6 1/2 | 4 | 5/8 |
| 4 | 8 1/2 | 1/2 | 7 | 4 | 5/8 |
| 5 | 10 | 9/16 | 8 1/4 | 8 | 5/8 |
| 6 | 11 | 11/16 | 9 1/4 | 8 | 3/4 |
| 8 | 13 1/4 | 3/4 | 11 1/2 | 8 | 3/4 |
metric measurements (mm)
| NB | OD | Thickness | PCD | No of Bolts | Bolt Size |
| 15 | 95 | 6 | 67 | 4 | M12x40 |
| 20 | 102 | 6 | 73 | 4 | M12x40 |
| 25 | 114 | 7 | 83 | 4 | M12x40 |
| 32 | 121 | 8 | 87 | 4 | M12x40 |
| 40 | 133 | 9 | 98 | 4 | M12x40 |
| 50 | 152 | 9 | 114 | 4 | M16x50 |
| 65 | 165 | 10 | 127 | 4 | M16x50 |
| 80 | 184 | 11 | 146 | 4 | M16x50 |
| 90 | 203 | 12 | 165 | 4 | M16x55 |
| 100 | 126 | 13 | 178 | 8 | M16x55 |
| 125 | 254 | 14 | 210 | 8 | M16x55 |
| 150 | 279 | 17 | 235 | 8 | M20x65 |
| 200 | 337 | 19 | 292 | 8 | M20x65 |