The present disclosure relates to a valve arrangement for a shock absorber. The valve arrangement (1) comprises. The valve arrangement comprises a valve housing comprising a first and a second port and a pilot chamber being in fluid communication with said first and/or second port, a pilot pressure is defined by a hydraulic pressure in said pilot chamber, a main valve member being axially movably along a longitudinal axis in said valve housing and being arranged to interact with a main valve seat of said valve housing in order to restrict a main fluid flow between said first and second ports in response to said pilot pressure acting on said main valve member. Further, the main valve member is resiliently loaded in a steady-state position from where it is movable in both directions along the longitudinal axis and is configured to, during an initial pressure increase of the main fluid, move in a direction away from the pilot chamber. The disclosure further relates to a method for controlling a damping medium flow in a shock absorber.