ORFS adapters as SAE J1453 are used for high voltage hydrodynamic connections. The tightness is confirmed by a flat surface with thread and seat for O-rings (in nitrile compound and suitable for temperatures between -20 ° C and 120 ° C), tightening.
This type of connection offers good protection against bumps and stresses and simplifies assembly without leakage (even in the presence of oil), good protection against sealing, and cracking. Possibility of reassembly and disassembly. Must be worn or aged) O-rings.