The Sun SXCA LBN is a high-performance, solenoid-operated, 2-way, normally closed, poppet-type, screw-in hydraulic cartridge valve. Designed for reliability in demanding applications, this valve functions as a check valve in its de-energized state, allowing flow from port 1 to port 2 while blocking flow from port 2 to port 1. When the solenoid coil is energized, the poppet lifts, opening the flow path from port 2 to port 1. Its poppet-style construction ensures minimal leakage, making it an excellent choice for load-holding, blocking, and switching functions within a hydraulic circuit. The cartridge’s robust design and high-pressure rating make it suitable for a wide range of industrial and mobile hydraulic systems.