The Hydac WSM10120ZR is a high-performance, direct-acting 2/2-way solenoid-operated poppet valve designed as a screw-in cartridge. This model is a “normally open” valve, meaning it allows hydraulic flow from port 2 to port 1 when the solenoid is de-energized. When the solenoid is energized, the poppet moves to close the valve, effectively blocking the flow path. Its robust construction and leak-free poppet design make it an excellent choice for on/off control functions in a wide range of mobile and industrial hydraulic applications, ensuring reliable operation and long service life.