SUN HYDRAULICS
RVCDWCV

***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 RVCDWCV (RVCDWCV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. It opens to tank port 2 when the inlet port 1 pressure reaches the valve setting, thus regulating the pressure through throttling flow. Featuring a vent port 3 for remote control by other pilot or 2-way valves and a drain port 4 to ensure insensitivity to back pressure, this valve is known for its accuracy and low-pressure rise versus flow characteristics. It operates smoothly and quietly with moderate speed. The remote pilot relief on port 3 allows for control below its own setting, and it can handle maximum pressure at port 2, making it suitable for cross-port relief circuits while considering spool leakage. The main stage orifice is safeguarded by a 150-micron stainless steel screen; however, due to spool leakage, it is not recommended for load-holding applications. The pressure at port 4 adds directly to the valve setting at a 1:1 ratio but should not exceed 5000 psi (350 bar). Cartridges with EPDM seals are specifically designed for systems using phosphate ester fluids and should not be exposed to petroleum-based substances. The valve's W and Y controls offer adjustability throughout their range unless specified otherwise. Incorporating Sun's floating style construction minimizes internal part binding due to installation torque or cavity/cartridge machining variations. With a cavity type T-21A Series-1, it has a capacity of up to 15 gpm (60 L/min) and operates at pressures up to 5000 psi (350 bar). It features an adjustment of up to five clockwise turns to increase settings and requires specific installation torques as outlined in its specifications. This model weighs approximately .40 lb (0.20 kg) and includes detailed guidelines on its adjustment screws and locknut torque requirements.