SUN HYDRAULICS
RVIDKWV

***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 RVIDKWV (RVIDKWV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve operates as a normally closed pressure regulating valve, opening to tank port 2 when the inlet port 1 pressure reaches the set point, thereby throttling flow to maintain desired pressure levels. It features a vent port 3 for remote control via other pilot or two-way valves and an external drain port 4 that ensures insensitivity to back pressure. The RVIDKWV is engineered for accuracy, low pressure rise versus flow, smooth operation, and moderate speed. This relief cartridge can handle maximum pressures at port 2 and is suitable for cross-port relief circuits; however, users should account for spool leakage in such applications. It includes a main stage orifice protected by a 150-micron stainless steel screen but is not recommended for load-holding applications due to potential spool leakage. The valve setting can be directly influenced by the pressure at port 4 at a 1:1 ratio, with a maximum allowable pressure of 5000 psi (350 bar). The product incorporates Sun's floating style construction to prevent internal part binding due to excessive installation torque or machining variations. It has specific configurations with EPDM seals suitable for systems using phosphate ester fluids; exposure to petroleum-based substances will damage these seals. Key specifications include a capacity of 120 gpm (480 L/min), factory settings established at 4 gpm (15 L/min), and maximum operating pressures of up to 5000 psi (350 bar). The valve features adjustment capabilities with specific torque requirements and comes with Viton seal kits available under part number 990-024-006.