The Rego valve is a load sensing, pressure compensated directional valve of a completely new and unique design. The basic valve element, of which normally four are combined to give a directional valve, is a seat valve which with an internal position feedback is proportionally controlled by activating a small pilot valve. The type of feedback used in this concept gives several unique characteristics which for instance makes it possible to get multiple functions in a simple way. The valve is designed to provide zero-leakage capabilities and great efforts have also been made to get a high degree of flexibility and serviceability. This have been accomplished by using cartridges, designed for easy screw-in installation into form-drilled cavities.