4WEH25 Solenoid Pilot Operated Directional Control Valves has fours ways to control.It depands on the imported oil which is from the external or the internal and drain port is from the external or the internal. The pilot valve from the picture is 4WE6 Series 3-position Solenoid Directional Valves.The Flow Control Valves like Z2FS Series could be seted between pilot solenoid directional valve and the main valve to control the flow rate. This product has the following characteristics and advantages: 1. High reliability: Adopting high-quality materials and advanced manufacturing processes to ensure the stability and reliability of the product. 2. High sensitivity: The electromagnetic valve adopts advanced electromagnetic control technology, which can quickly respond to control signals and achieve rapid switching of fluid flow direction. 3. High precision: The hydraulic valve adopts precise flow channel design and advanced sealing technology, which can achieve precis…