SUN HYDRAULICS
RVIDCEV

***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 RVIDCEV (RVIDCEV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens at the inlet port 1 when the pressure reaches a predetermined setting, directing flow to tank port 2 to maintain consistent system pressure. It features a vent port 3 for remote control capabilities and a drain port 4 that ensures insensitivity to back pressure. Known for its accuracy and smooth operation, this valve is suitable for cross-port relief circuits, though it should be noted that spool leakage may occur in such applications. The main stage orifice is protected by a robust 150-micron stainless steel screen. This model can handle maximum pressures of up to 5000 psi (350 bar) at port 2 and allows for direct additive pressure adjustments at port 4 on a 1:1 ratio. It incorporates Sun's floating style construction to prevent internal binding caused by installation torque or machining variations. The RVIDCEV is not recommended for load holding applications due to potential spool leakage. Compatibility with phosphate ester fluids is ensured with EPDM seals, but these seals are vulnerable to damage from petroleum-based substances. The cartridge's capacity reaches up to 120 gpm (480 L/min), with factory pressure settings established at a flow rate of 4 gpm (15 L/min). The response time is typically around 10 ms, and maximum valve leakage remains minimal even under high-pressure conditions. Installation requires specific torque settings, and adjustments can be made using an internal hex screw. Weighing approximately 3.10 lb (1.40 kg), this relief valve offers reliable performance in various hydraulic applications requiring precise pressure control and regulation.