SUN HYDRAULICS
RVEAQAV

***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 RVEAQAV (RVEAQAV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This normally closed valve opens to tank port 2 when the inlet pressure at port 1 reaches the set value, effectively throttling flow to maintain consistent pressure levels. It features a vent port 3 for remote control via other pilot or two-way valves, making it versatile in various hydraulic applications. The valve is characterized by its accuracy, low pressure rise versus flow, smooth operation, moderate speed, and quiet performance. It can accommodate maximum pressure at port 2 and is suitable for cross port relief circuits, although users should account for spool leakage in such configurations. The main stage orifice is shielded by a 150-micron stainless steel screen. However, it's not recommended for load-holding applications due to spool leakage concerns. The RVEAQAV model incorporates Sun's floating style construction to minimize internal binding risks from excessive installation torque or machining variations. It supports systems with phosphate ester fluids when equipped with EPDM seals but should avoid petroleum-based substances that could damage the seals. The cartridge fits into a T-2A cavity and can handle up to 30 gpm (120 L/min) with a maximum operating pressure of 5000 psi (350 bar). Factory pressure settings are established at 4 gpm (15 L/min), with a typical response time of 10 ms and minimal valve leakage at specified conditions. Installation requires specific torques: the valve hex size is 1-1/8 inches (28.6 mm), with an installation torque of 45-50 lbf-ft (61-68 Nm). The adjustment screw uses an internal hex size of 5/32 inches (4 mm), while the locknut hex size is 9/16 inches (15 mm) with a torque requirement of 80-90 lbf-in (9-10 Nm). The model weighs approximately .70 lb (.30 kg) and includes a Viton seal kit option under part number 990202006.