VALVE ASSEMBLY, HYDRAULIC SYSTEM AND MACHINE COMPRISING THE VALVE ASSEMBLY

摘要

The present utility model relates to a valve assembly comprising a first directional valve configured to be in fluid connection with a working pump so as to receive hydraulic fluid pumped by the working pump, and selectively guide the received hydraulic fluid to a bucket hydraulic cylinder; a second directional valve configured to be in fluid connection with the first directional valve so as to receive hydraulic fluid from the first directional valve, and selectively guide the received hydraulic fluid to a lifting hydraulic cylinder; a main relief valve; a first load check valve; a second load check valve; a first relief valve; a make-up and relief valve; and a float control valve, and characterized in that the respective valve elements are integrated in a valve block, wherein the float control valve, the first relief valve and the make-up and relief valve are disposed in parallel along a horizontal direction in a first horizontal layer of the valve block, and the first directional valve, the second directional valve and the first load check valve are disposed in parallel along the horizontal direction in a second horizontal layer of the valve block. The present utility model further relates to a hydraulic system and a machine comprising the valve assembly.