SUN HYDRAULICS
RVGACCN

***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 RVGACCN (RVGACCN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This valve remains normally closed until the inlet port pressure reaches the preset limit, at which point it opens to tank port 2 to throttle flow and maintain regulated pressure. Featuring a vent port (port 3), it allows for remote control via other pilot or two-way valves. Known for its accuracy and low-pressure rise versus flow characteristics, this valve operates smoothly and quietly with moderate speed. It accepts maximum pressure at port 2 and is suitable for cross-port relief circuits, though users should consider spool leakage in such applications. The main stage orifice is protected by a 150-micron stainless steel screen, but the valve is not recommended for load holding due to potential spool leakage. Back pressure on the tank port directly adds to the valve setting at a 1:1 ratio. For systems using phosphate ester fluids, EPDM seals are available; however, these seals can be damaged by petroleum-based substances. The valve incorporates Sun's floating style construction to reduce internal binding risks from excessive installation torque or machining variations in cavities or cartridges. With a capacity of 60 gpm (240 L/min) and a maximum operating pressure of 5000 psi (350 bar), this model offers typical response times of 10 ms and minimal leakage rates under specified conditions. It requires specific installation torques and adjustments for optimal performance, making it suitable for applications demanding reliable pressure control with remote operation capabilities.