A Check valve is a mechanical device designed to allow the flow of fluid or hydraulic oil in one direction while preventing backflow in the opposite direction. It is installed within the hydraulic circuit of the boom line, near the hydraulic cylinder or the connection point of the boom arm. It consists of a valve body, a movable valve element, and a spring or other means of providing closure force. It allows the fluid to flow freely in the desired direction. Attributes:• Maximum working pressure 35000 kPa.• Crack pressure 10 kPa.• Designed to resist vibrations, shocks, and extreme loads. Applications: A Check valve prevents undesired movements of the boom arm and ensures the stability and safety of the vehicle.