The MARSILI steering systems with hydraulic synchronization are equipped with synchronization valves which are installed when it is not possible to synchronize two or more rudders, by means of a tie bar for example.
These are systems mainly designed for Catamarans, Trimarans, or vessels with very distant rudders.
These systems are often chosen, particularly for small vessels, as an alternative to electronic systems which not only are more expensive but are also more complex electrically speaking.
The hydraulically synchronized steering systems can be Manual, servo assisted with orbitrol, Assisted with hydraulic feedback and can be used with electrohydraulic power packs for autopilot or joystick.
For bigger vessels MARSILI produces special cylinders with internal bypass for phasing combined with the V.E.I.S.A. valve for synchronization.