SUN HYDRAULICS
RVESLWN/AP

***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 RVESLWN/AP (RVESLWN/AP) is a ventable, pilot-operated, balanced poppet relief cartridge designed for precise pressure regulation in hydraulic systems. This valve is typically closed and begins to open to tank port 2 when the inlet port 1 reaches the designated pressure setting, thereby regulating flow and maintaining system pressure. It features a vent port (port 3) that facilitates remote control by other pilot or 2-way valves. Known for its accuracy and low-pressure rise versus flow, this valve operates smoothly and quietly with moderate speed. The internal modulation of the cartridge makes it resistant to cavitation issues such as noise and manifold erosion. This relief cartridge is suitable for load-holding applications, provided that any valving on the vent port (port 3) is zero leak. It can handle maximum pressure at port 2, making it ideal for cross-port relief circuits. A remote pilot relief on the vent will control the valve below its own setting. The design ensures relative insensitivity to varying oil temperatures and contamination from oil-borne particles. The main stage orifice is protected by a 150-micron stainless steel screen, ensuring durability. The valve's back pressure on tank port 2 directly adds to the valve setting at a 1:1 ratio, enhancing its adaptability in various applications. Incorporating Sun's floating style construction minimizes potential binding of internal parts due to excessive installation torque or machining variations in cavity/cartridge setups. With a capacity of 25 gpm (95 L/min) and maximum operating pressure of 5000 psi (350 bar), this model offers reliable performance across demanding conditions. Additional specifications include response time typical of 2 ms, maximum valve leakage at reseat of 10 drops/minute (0.7 cc/min), and an adjustment range supported by five clockwise turns to increase settings.