SUN HYDRAULICS
RVEAQEV

***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 RVEAQEV (RVEAQEV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precision pressure regulation. This valve remains normally closed until the inlet port pressure reaches the preset level, at which point it begins to open to the tank port, regulating flow and pressure smoothly and quietly. The RVEAQEV features a vent port that allows for remote control via other pilot or 2-way valves, enhancing its versatility in various hydraulic systems. With a maximum operating pressure of 5000 psi (350 bar) and a capacity of 30 gpm (120 L/min), this valve is suitable for cross port relief circuits but not recommended for load holding applications due to potential spool leakage. The valve incorporates a main stage orifice protected by a 150-micron stainless steel screen and uses Sun's floating style construction to prevent internal binding from installation torque or machining variations. It is configured with EPDM seals, making it compatible with systems using phosphate ester fluids while being unsuitable for petroleum-based fluids. The back pressure on the tank port directly affects the valve setting at a 1:1 ratio. Installation specifics include a valve hex size of 1-1/8 inches (28.6 mm) and an installation torque range of 45-50 lbf ft (61-68 Nm). The adjustment screw has an internal hex size of 5/32 inches (4 mm), while the locknut requires a torque of 80-90 lbf in (9-10 Nm). This cartridge model weighs approximately .70 lb (.30 kg) and comes with an optional Viton seal kit under part number 990202006.