SUN HYDRAULICS
RVGAKDN

***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 RVGAKDN (RVGAKDN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed until the pressure at the inlet port reaches a predetermined setting, at which point it begins to open to the tank port, effectively throttling flow to maintain the desired pressure level. A key feature of this model is its vent port (port 3), which allows for remote control by other pilot or two-way valves. The RVGAKDN is noted for its accuracy, low pressure rise versus flow, smooth and quiet operation, and moderate speed. This relief cartridge can handle maximum pressure at port 2 and is suitable for cross-port relief circuits; however, users should be aware of potential spool leakage in such applications. It incorporates a main stage orifice protected by a 150-micron stainless steel screen but is not recommended for load-holding applications due to potential leakage issues. Backpressure on the tank port directly influences the valve setting at a 1:1 ratio. The Sun Hydraulics RVGAKDN also features EPDM seals that are compatible with phosphate ester fluids but can be damaged by petroleum-based substances. The valve's construction minimizes internal binding risks due to installation torque or machining variations. With a capacity of 60 gpm (240 L/min), a maximum operating pressure of 5000 psi (350 bar), and a response time of about 10 ms, this valve offers reliable performance in demanding environments. Additionally, its design includes an adjustment screw with an internal hex size of 5/32 inches and requires specific torque settings for installation and locknut adjustments.