SUN HYDRAULICS
RVGACYN

***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 RVGACYN (RVGACYN) 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 predetermined setting, at which point it opens to the tank port to throttle flow and regulate pressure. It features a vent port that allows for remote control by other pilot or 2-way valves, making it versatile for various hydraulic applications. The RVGACYN is known for its accuracy, low pressure rise versus flow, smooth operation, quiet performance, and moderate response speed. The valve can accept maximum pressure at port 2 and is suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. It is not recommended for load-holding applications due to potential leakage. The main stage orifice is protected by a 150-micron stainless steel screen to ensure durability and reliability. Back pressure on the tank port directly affects the valve setting at a 1:1 ratio. Cartridges equipped with EPDM seals are intended for systems using phosphate ester fluids as exposure to petroleum-based fluids can damage these seals. The valve incorporates Sun's floating style construction to minimize internal binding due to installation torque or machining variations. The RVGACYN has a capacity of 60 gpm (240 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The factory pressure settings are established at 4 gpm (15 L/min), with control pilot flow ranging from 15-20 in\u00b3/min (0.25-0.33 L/min). Typical response time is around 10 ms, and maximum valve leakage is specified at 4 in\u00b3/min (65 cc/min) at 1000 psi (70 bar). This model requires specific torque settings during installation and adjustment procedures to ensure optimal performance.