For the MARSILI encoding they are called “systems type H” or “I”.

The MARSILI electronic steering systems meet perfectly the needs of motorized vessels of all types from nautical to working ones.

The electronic systems can be supplied in various versions very different from one another but, despite the hydraulic, electrohydraulic and mechanic parts of the “B” systems, they are mainly made up of one or more potentiometric transmitters with wheel (control stations), a junction box with integrated card for the electronic system and alarms card, one or more electric feedbacks, one or more starters with alarm repeaters and eventual panels to be installed on the bridge.

The electronic systems may also be supplied, in special versions, with electronic synchronization of the rudders and with proportional valves which are adaptable for the dynamic position system.


A large range of piston helm pumps, hydraulic cylinders, electrohydraulic power packs with voltage on demand and accessories, allow a precise choice of  the most suitable equipment for each situation, the reliability and comfort are guaranteed.

The MARSILI power packs are adaptable to all kinds of autopilots.

The standard directional valves are 12V or 24V ON-OFF, but proportional directional valves can be supplied as well.

The power packs of the systems Type “H” are classified as “Y” or “W”.

The power packs type “Y” exploit the power of an electric motor coupled to a gear pump, the tank and the base of the electric motor are complete of control and safety valves and filters; the movement of the rudder is obtained by means of a solenoid valve controlled by an electric transmitter on the bridge.

The power packs type “W” exploit the power of a gear pump coupled to a motor on board or to a belt driven support which transmits the rotation and, thus, the oil flow to the valve group installed on the tank.

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