O-Ring Face Seal adapter [ORFS] fittings use a straight thread with a machined groove in the face of the male fitting to accept an O-Ring. Combined with a female fitting, this creates a leak-proof seal. Topol Power manufactures a comprehensive range of precision dapters to accommodate diverse hydraulic configuration requirements.
| PART NO. | THREAD | O-RING | DIMENSIONS | ||
| E | E | A | L | S1 | |
| 4F-04 | 9/16″X18 | 7.65X1.78 | 9.8 | 16.8 | 17 |
| 4F-06 | 11/16″X16 | 9.25X1.78 | 11.2 | 19.2 | 19 |
| 4F-08 | 13/16″X16 | 12.42X1.78 | 12.8 | 21.8 | 22 |
| 4F-10 | 1″X14 | 15.6X1.78 | 15.5 | 25.9 | 27 |
| 4F-12 | 1.3/16″X12 | 18.77X1.78 | 17 | 27.4 | 32 |
| 4F-16 | 1.7/16″X12 | 23.52X1.78 | 17.5 | 27.9 | 38 |
| 4F-20 | 1.11/16″X12 | 29.87X1.78 | 17.5 | 27.9 | 46 |
| 4F-24 | 2″X12 | 37.82X1.78 | 17.5 | 27.9 | 55 |


