SUN HYDRAULICS
RSJCYCN

***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 RSJCYCN (RSJCYCN) 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 setting. This valve is engineered to control pressure at port 1 relative to the drain port 3 and remains unaffected by back pressure at port 2 up to its set threshold. It can be used as an alternative to two-port relief valves where there is return line pressure. The RSJCYCN model features interchangeable three-port sequence cartridges, ensuring compatibility across different frame sizes with identical flow paths and cavities. As the inlet pressure at port 1 increases above the valve setting, pilot flow continues to rise. To protect its main stage orifice, the valve incorporates a 150-micron stainless steel screen. The pressure at port 3 directly adds to the valve setting at a 1:1 ratio, with a maximum allowable limit of 5000 psi (350 bar). However, this model is not suitable for load-holding applications due to spool leakage. The RSJCYCN offers adjustable settings through W and Y controls unless specified otherwise for special settings, which define the maximum valve setting. The design incorporates Sun's floating style construction to prevent internal part binding caused by excessive installation torque or machining variations in cavity/cartridge production. It fits into a Cavity T-19A/Series 4 with a capacity of up to 120 gpm (480 L/min) and operates under a maximum pressure of 5000 psi (350 bar). The control pilot flow ranges from 15\u201320 in\u00b3/min (0.25\u20130.33 L/min), with typical response times around 10 ms and maximum leakage of approximately 5 in\u00b3/min at specific conditions. The valve's installation specifications include various hex sizes and torques for secure fitting, weighing approximately 3.10 lb (1.40 kg).