SUN HYDRAULICS
RSJCCWN

***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 RSJCCWN (RSJCCWN) is a pilot-operated, balanced piston sequence valve designed to supply a secondary circuit with flow once the inlet port 1 pressure exceeds the valve setting. It regulates pressure at port 1 relative to the drain port 3 and is unaffected by back pressure at port 2 until reaching the valve setting. This model can substitute for two-port relief valves when there's return line pressure and features interchangeable three-port sequence cartridges for consistent flow paths and cavity compatibility across frame sizes. The valve's main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability in various applications. Pressure at port 3 directly adds to the valve setting on a 1:1 ratio, with an upper limit of 5000 psi (350 bar). However, it is not suitable for load holding due to spool leakage. The RSJCCWN includes W and Y controls that can be adjusted throughout their full range unless specified otherwise, which then defines the maximum setting. Sun's floating style construction minimizes internal component binding due to installation torque or machining variations. The RSJCCWN fits a Cavity T-19A, Series 4, with a capacity of up to 120 gpm (480 L/min). Factory settings are established at 4 gpm (15 L/min), supporting a maximum operating 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. Maximum leakage at 110 SUS (24 cSt) is limited to 5 in\u00b3/min at 1000 psi (80 cc/min at 70 bar). Installation requires specific torque settings: valve hex size is 1-5/8 inches (41.3 mm) with an installation torque of between 350-375 lbf ft (474-508 Nm); adjustment screw internal hex size is 5/32 inches (4 mm); locknut hex size is 9/16 inches (15 mm) with locknut torque ranging from 80-90 lbf in (9-10 Nm). The model weighs approximately 3.10 lb (1.40 kg) and uses Viton seal kits, part number: 990019006.