SUN HYDRAULICS
RVEAOOV

***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 RVEAOOV (RVEAOOV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed pressure regulating valve opens to tank port 2 when the inlet port 1's pressure reaches the pre-set level, allowing for controlled flow and maintaining consistent system pressure. It features a vent port 3, enabling remote control through other pilot or 2-way valves. Known for its accuracy and smooth operation with minimal noise, this valve is moderately fast and exhibits low pressure rise relative to flow. The RVEAOOV can handle maximum pressure at port 2, making it suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring reliability and durability. This cartridge is not recommended for load holding applications due to potential spool leakage. Back pressure on tank port 2 directly affects the valve setting at a 1:1 ratio. Cartridges with EPDM seals are intended for systems using phosphate ester fluids, as exposure to petroleum-based substances could damage these seals. The Sun floating style construction minimizes internal binding risks due to installation torque or machining variations. With a capacity of 30 gpm (120 L/min), this valve operates at a maximum pressure of 5000 psi (350 bar). It offers a control pilot flow of 10-15 in\u00b3/min (0.16-0.25 L/min) and typical response time of just 10 ms. Maximum valve leakage at specified conditions is limited to 3 in\u00b3/min (50 cc/min). Installation requires specific torque settings: valve hex size is 1-1/8 in., with installation torque between 45-50 lbf ft (61-68 Nm). Adjustment involves an internal hex size screw of 5/32 in., and the locknut requires torque between 80-90 lbf in (9-10 Nm). The model weighs approximately .70 lb (.30 kg), with Viton seal kits available under part number 990202006 for maintenance needs.