Features: 1.High Performance: The PTO disengages automatically when the vehicle body is lowered, and equipped with warning light ensures safe operation. 2.Application: The proportional control valves is widely used in the hydraulic system of dump trucks and wide applicable for most models. 3.Precise Control: Dump truck proportional control valves enable precise control, improving the accuracy and efficiency of truck unloading. 4.Valve Design: Mounted in the cab, the valve has four working positions to control rising, intermediate stop, descent and slow descent. 5.Practical: With self locking of middle stop position, clear transposition and simple operation, easily control dumping functions and increase productivity. Specification: Item Type: Proportional Control Valves Material: Aluminum and plastic Description: 1. Installed in the cab, remote control. 2. The valve has four working positions: rising, intermediate stopping, descending, and slowly descending. 3. The valve has beautiful appearance, self locking stop position, clear transposition, and simple operation. 4. With the slow down pneumatic directional valve, the speed control of the descending action can be realized. Application: Widely used in dump truck hydraulic system