The orbitrols represent an advanced technological solution to ease the movement and the precision of the wheels and of the assisted systems; quality, precision and perfect interchangeability with original spares which guarantee the maximum reliability of each product. These orbitrols are available in reactive and non-reactive version, for systems with opened centre and closed centre and in load sensing version. The correct dimension of the orbitrol for the steering system is recommended directly from our technical office. The standard orbitrols are the following: OH/8 for single control station OH/3 for double control station (priority valve must be foreseen)