SUN HYDRAULICS
RSJCKBV

***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 RSJCKBV (RSJCKBV) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the pressure at inlet port 1 exceeds the valve's setting. This valve manages pressure at port 1 relative to the drain port 3 and remains unaffected by back pressure at port 2 up to the valve setting. It serves as an alternative to 2-port relief valves when there is return line pressure. The RSJCKBV features interchangeable three-port sequence cartridges that maintain consistent flow paths and cavity sizes for a given frame size. Pilot flow increases as the inlet pressure surpasses the valve setting, with protection provided by a 150-micron stainless steel screen over the main stage orifice. The pressure at port 3 adds directly to the valve setting in a 1:1 ratio, with a maximum limit of 5000 psi (350 bar). This model is not suitable for load-holding applications due to spool leakage. Adjustments can be made using W or Y controls, which are adjustable throughout their full range unless specified otherwise for maximum settings. The floating style construction minimizes internal binding risks from excessive installation torque or machining variations. The RSJCKBV has a capacity of 120 gpm (480 L/min) and operates under a maximum pressure of 5000 psi (350 bar). Control pilot flow ranges between 15-20 in\u00b3/min (0.25-0.33 L/min), with typical response times around 10 ms and maximum leakage rates of 5 in\u00b3/min at specific conditions. Installation requires specific torque values, and seal kits are available for maintenance purposes.