The Sun NFCCKCN is a high-performance, pilot-to-open check valve with a counterbalance function, designed for controlling overrunning loads and providing reliable load holding in hydraulic circuits. As a screw-in cartridge valve, it integrates seamlessly into custom manifolds, offering a compact and leak-free solution. The valve’s primary function is to restrict fluid flow from port 2 to port 1 until sufficient pilot pressure is applied at port 3, allowing for smooth and controlled motion of actuators. Its robust design ensures dependable operation in demanding applications, making it an ideal choice for motion control and safety circuits.