SUN HYDRAULICS
RVIAKDN

***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 RVIAKDN (RVIAKDN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve begins to open to the tank port when the inlet pressure reaches its set point, effectively throttling flow to maintain desired pressure levels. A key feature is its vent port, which allows for remote control via other pilot or two-way valves. The RVIAKDN model is noted for its accuracy, smooth operation, and moderate response time, making it suitable for applications requiring consistent pressure control with minimal noise. This cartridge can handle maximum pressures at port 2 and is ideal for cross-port relief circuits, although spool leakage should be considered in such configurations. It incorporates a main stage orifice shielded by a 150-micron stainless steel screen and utilizes a floating style construction to reduce internal binding risks due to installation torque variations. It's important to note that this valve is not suitable for load-holding applications because of potential spool leakage. The RVIAKDN model supports systems using phosphate ester fluids with EPDM seals but should not be exposed to petroleum-based substances as they can damage the seals. The valve's capabilities include handling up to 120 gpm (480 L/min) flow capacity and operating at pressures up to 5000 psi (350 bar). It features an adjustment mechanism that allows fine-tuning of the pressure setting with a maximum of five clockwise turns. Installation requires specific torque settings and hex sizes for both the valve body and adjustment components. Lastly, this cartridge weighs approximately 3.10 lb (1.40 kg) and comes with a seal kit option made from Viton material for enhanced durability in various fluid environments.