SUN HYDRAULICS
RVEAOQV

***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 RVEAOQV (RVEAOQV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port when the inlet pressure reaches the set value, effectively throttling flow to maintain stable pressure levels. It features a vent port that enables remote control through other pilot or two-way valves, providing flexibility and control in various applications. The valve is known for its accuracy, low-pressure rise versus flow characteristics, smooth operation, and moderate response speed. Key specifications of the RVEAOQV include a maximum operating pressure of 5000 psi (350 bar) and a capacity of 30 gpm (120 L/min). The valve accepts maximum pressure at port 2 and is suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. It incorporates Sun's floating style construction to minimize internal binding due to installation torque variations or machining discrepancies. This model is equipped with a main stage orifice protected by a 150-micron stainless steel screen but is not suitable for load-holding applications due to potential spool leakage. Additionally, backpressure on the tank port directly affects the valve setting at a 1:1 ratio. Cartridges with EPDM seals are compatible with phosphate ester fluids but are vulnerable to damage from petroleum-based substances. The RVEAOQV also includes adjustable settings with five clockwise turns needed to increase the pressure setting. The valve's installation requires specific torque values for optimal performance: 45-50 lbf ft (61-68 Nm) for the valve and 80-90 lbf in (9-10 Nm) for the locknut. With its robust design and versatile application potential, this relief cartridge is an essential component in maintaining hydraulic system efficiency and safety.