SUN HYDRAULICS
RPEEYWV

***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 RPEEYWV (RPEEYWV) is a fast-acting, pilot-operated, balanced piston relief cartridge designed to protect hydraulic components from pressure transients. This valve is normally closed and functions as a pressure-limiting device by opening to the tank port when inlet pressure reaches the preset limit, thus throttling flow to manage pressure rise. It features a low-pressure rise versus flow characteristic and operates with remarkable speed. The valve can handle maximum pressure at port 2 and is suitable for cross-port relief circuits, though spool leakage should be considered in such applications. It is not recommended for load-holding applications due to potential leakage. The main stage orifice of the RPEEYWV is protected by a 150-micron stainless steel screen, enhancing its durability and reliability. Back pressure on the tank port directly adds to the valve setting at a 1:1 ratio, allowing precise control over system pressures. This model incorporates Sun's floating style construction to minimize internal part binding caused by installation torque or machining variations. The RPEEYWV has a capacity of 25 gpm (95 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). It offers typical response times of around 2 milliseconds and maintains minimal valve leakage at specified conditions. The adjustment mechanism allows for full-range tuning using W or Y controls unless a special setting limits the maximum adjustment range. Installation requires specific torque settings, with detailed specifications provided for hex sizes and locknut adjustments. This cartridge model weighs approximately 0.30 lb (0.15 kg) and is compatible with Viton seal kits, ensuring robust performance across various applications where rapid response to pressure changes is critical.