SUN HYDRAULICS
RVCDKWN

***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 RVCDKWN (RVCDKWN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a pressure-regulating valve that remains normally closed. It activates when the inlet port 1 reaches the designated pressure setting, opening to tank port 2 to throttle flow and regulate pressure effectively. This model features a vent port 3 for remote control by other pilot or two-way valves and a drain port 4 that ensures insensitivity to back pressure. Known for its accuracy, low-pressure rise versus flow, smooth operation, and moderate speed, this valve is ideal for various hydraulic applications but is not suitable for load-holding due to spool leakage. The valve can manage 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 safeguarded by a 150-micron stainless steel screen. It supports a maximum operating pressure of 5000 psi (350 bar) with control pilot flow between 7-10 in\u00b3/min (0.11-0.16 L/min) and typical response time of approximately 10 milliseconds. Cartridges with EPDM seals are compatible with systems using phosphate ester fluids but must avoid petroleum-based fluids to prevent seal damage. The valve's settings can be adjusted through its full range using W or Y controls unless specified otherwise for specific settings. It incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. The RVCDKWN has a capacity of 15 gpm (60 L/min), factory pressure settings established at 4 gpm (15 L/min), maximum valve leakage of 2 in\u00b3/min at 110 SUS (24 cSt) under conditions of up to 1000 psi (70 bar), and requires specific installation torque values for optimal performance.