SUN HYDRAULICS
RSJCKCN

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics RSJCKCN (RSJCKCN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the pressure at the inlet port 1 exceeds the valve setting. This valve variant is insensitive to back pressure at port 2, up to the valve setting, and can regulate pressure in place of 2-port relief valves if there is pressure in the return line. The RSJCKCN features interchangeable 3-port sequence cartridges that maintain consistent flow paths and cavity sizes for a given frame size. It incorporates a stainless steel screen to protect the main stage orifice and can handle pressures up to 5000 psi (350 bar) at port 3, which adds directly to the valve setting at a 1:1 ratio. Notably, this model is not suitable for load holding applications due to spool leakage. The RSJCKCN utilizes Sun's floating style construction to minimize internal binding risks caused by excessive installation torque or machining variations. It supports W and Y controls with adjustable settings throughout their full range unless a special setting is specified, which represents the maximum setting of the valve. The sequence valve has a capacity of 120 gpm (480 L/min) and operates effectively within its maximum operating pressure of 5000 psi (350 bar). It features an adjustment mechanism requiring approximately five clockwise turns to increase settings, with specific torque requirements for installation and locknut adjustments. Additionally, it includes a Viton seal kit option for enhanced durability. With these features, the RSJCKCN provides reliable performance in applications requiring precise control over secondary circuit flow based on inlet pressure conditions.