The Single pilot operated valve is a valve used to control the hydraulic system of a bulldozer, also known as the bulldozer control valve. It usually consists of components such as valve body, valve core, spring, oil hole, and connecting port. The main function of the bulldozer valve is to control the flow of hydraulic oil in the bulldozer hydraulic system, thereby controlling the movement of the bulldozer blade and other auxiliary devices. By changing the position of the slide valve, the bulldozer valve can open or close different oil circuits, achieving operations such as lifting, tilting forward, tilting backward, and moving left and right of the bulldozer blade.