SUN HYDRAULICS
RVCDLAN

***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 RVCDLAN (RVCDLAN) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain, designed as a normally closed pressure regulating valve. It activates when the inlet port pressure reaches the set threshold, opening to tank port 2 to throttle flow and regulate pressure. This model includes a vent port (port 3) for remote control by other pilot or 2-way valves and a drain port (port 4), making it insensitive to back pressure. Known for its accuracy, low-pressure rise versus flow, smooth operation, quiet performance, and moderate speed, it is equipped with a remote pilot relief on port 3 for control below its own setting. The valve can handle maximum pressure at port 2 and is suitable for cross-port relief circuits but should be noted for potential spool leakage in such applications. The main stage orifice is protected by a 150-micron stainless steel screen; however, it is not recommended for load-holding applications due to spool leakage. Pressure at port 4 directly adds to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar). Cartridges configured with EPDM seals are compatible with phosphate ester fluids but are vulnerable to damage from petroleum-based fluids. The W and Y controls allow adjustment throughout the full range unless specified otherwise with a special setting. Featuring Sun's floating style construction minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. This cartridge has a capacity of 15 gpm (60 L/min) and operates at a maximum pressure of 5000 psi (350 bar). It has a typical response time of 10 ms and maximum valve leakage of approximately 2 in\u00b3/min at specific conditions. The installation requires specific torque settings and hex sizes for adjustments. The model weighs .40 lb (.20 kg) and utilizes Viton seal kits like the part number 990021006.