Operating Principle
The plug contains an internal poppet-type valve that stays shut when disconnected. When properly screwed into the matching ISO‑A socket, locking balls engage and the valve opens to allow hydraulic fluid flow. Upon disconnection, the valve closes instantly to avoid oil escape or contaminant entry. The threaded interface ensures a stable, vibration-resistant connection that prevents accidental loosening. This design enables clean, quick, and tool-free operation ideal for demanding hydraulic applications in both mobile and industrial settings.
