SUN HYDRAULICS
RSFCJWV

***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 RSFCJWV (RSFCJWV) 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 maintains control over the pressure at port 1 relative to the drain port 3, while being insensitive to back pressure at port 2 up to its set point. It can serve as a substitute for two-port relief valves when there is pressure in the return line. The RSFCJWV model is part of a series of three-port sequence cartridges that are physically and functionally interchangeable, ensuring compatibility in terms of flow path and cavity size. As the inlet pressure at port 1 increases beyond the valve setting, pilot flow continues to rise, with the main stage orifice safeguarded by a 150-micron stainless steel screen. The valve's maximum operating pressure is rated at 5000 psi (350 bar), with an adjustable range facilitated by W and Y controls, unless a special setting is specified. It's important to note that this model is not suitable for load-holding applications due to spool leakage. The RSFCJWV incorporates Sun's floating style construction, which minimizes potential internal part binding from excessive installation torque or machining variations. It features EPDM seals for use with phosphate ester fluids\u2014exposure to petroleum-based fluids will damage these seals. Additional specifications include a capacity of 30 gpm (120 L/min), factory pressure settings established at 4 gpm (15 L/min), and control pilot flow between 10-15 in\u00b3/min (0.16-0.25 L/min). The typical response time is approximately 10 ms, with maximum valve leakage at 110 SUS (24 cSt) rated at 3 in\u00b3/min under 1000 psi (50 cc/min under 70 bar). The valve's hex size measures at 1-1/8 in. (28.6 mm), requiring an installation torque between 45-50 lbf ft (61-68 Nm).