SUN HYDRAULICS
RVCDKWV

***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 RVCDKWV (RVCDKWV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. This model begins to open to the tank port 2 when the inlet port 1 pressure reaches the valve setting, effectively throttling flow to maintain regulated pressure. It features a vent port 3 for remote control via other pilot or two-way valves and a drain port 4 for insensitivity to back pressure. The valve is known for its accuracy, low pressure rise compared to flow, smooth and quiet operation, and moderately fast response time of approximately 10 ms. Importantly, this cartridge can accept maximum pressure at port 2 and is suitable for cross-port relief circuits; however, spool leakage should be considered in such applications. The main stage orifice is protected by a 150-micron stainless steel screen. It's not recommended for load-holding applications due to potential spool leakage. Pressure at port 4 directly adds to the valve setting in a 1:1 ratio but should not exceed 5000 psi (350 bar). Cartridges with EPDM seals are compatible with phosphate ester fluids but can be damaged by petroleum-based fluids. The RVCDKWV incorporates Sun's floating style construction to minimize internal part binding risks due to excessive installation torque or cavity/cartridge machining variations. With an installation torque range of 30 - 35 lbf ft (41 - 47 Nm) and an adjustment capability of up to five clockwise turns using W or Y controls without special settings specified, this model provides reliable performance in various applications requiring precise pressure regulation within its capacity of up to 15 gpm (60 L/min) and factory settings established at 4 gpm (15 L/min).