The Danfoss 1CE90F20S4 is a high-performance, solenoid-operated, 2-way, 2-position, poppet-type, normally closed, screw-in hydraulic cartridge valve. Designed for reliable load-holding and blocking applications in demanding hydraulic circuits, this valve ensures minimal leakage thanks to its poppet-style construction. When the solenoid is de-energized, the valve’s poppet is spring-biased closed, blocking flow from port 2 to port 1. Energizing the solenoid lifts the poppet, allowing flow from port 2 to port 1. Its robust design and zinc-plated steel components provide durability and corrosion resistance, making it suitable for a wide range of mobile and industrial hydraulic systems.