P80 series control valve with middle-high pressure monoblock construction is developed based on Europe technology. Relief valve and check valve can be installed on the valve according to customer requirements. The relief valve can adjust the pressure, and the one-way valve prevents the oil from flowing back. The spool valve functions of the reversing valve are A, O, P, Y, etc., which can be combined arbitrarily. The reversing handle has two installation forms, which is convenient for operation in different directions. The valve adopts parallel or series oil circuits and is designed with a pressure output port. Connect with other hydraulic components to provide power source. The specially designed sealing method makes the sealing performance of the valve excellent. The valve is widely used in hydraulic systems of construction machinery such as forklifts, sanitation vehicles, and small loaders.