Abstract: The present invention relates to an electrohydraulic valve (10) having at least one control element (60) positioned inside at least one movement channel (23) provided on a valve body (20), and at least one drive pin (50) extending between the control element (60) and a valve pin (31) of a solenoid valve (30) in order to provide said control element (60) to displace in a movement axis (a), and at least one spring (54) connected to said drive pin (50). The length of the spring can be changed with the help of an adjustment nut (40). Thus, the resistance of the spring is changed.

Abstract: The present invention relates to a throttling locking valve (10) for a control valve used in tractor hydraulic lifters and having a body (20) and a locking screw (30) provided inside the body (20). As an improvement, the subject matter throttling locking valve (10) comprises a center opening (21) wherein the locking screw (30) is placed inside the body (20), and a screw thread (23) provided at the wall of the center opening (21) and at least one threaded part (32) provided on the locking screw (30).

Abstract: The present invention relates to a control valve, for hydraulic lifters used on tractors, and having a body (10), at least one main inlet line (11) which transfers fluid into the body (10), and a check valve (23) for controlling the passage of fluid, coming from the main inlet line (11), to a cylinder line (14).