SUN HYDRAULICS
RVCDLAV

***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 RVCDLAV (Material Number: RVCDLAV) is a ventable, pilot-operated, balanced piston relief cartridge with an external drain. These valves are designed to be normally closed pressure regulating devices. When the inlet port 1 pressure reaches the valve's set threshold, it opens to tank port 2, throttling flow to maintain the desired pressure level. The valve 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 their accuracy and low-pressure rise versus flow characteristics, these valves operate smoothly and quietly with moderate speed. The RVCDLAV is capable of accepting maximum pressure at port 2, making it suitable for cross-port relief circuits, though spool leakage should be considered in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. Due to spool leakage, these cartridges are not recommended for load-holding applications. Pressure at port 4 adds directly to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar). Cartridges with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based substances will damage these seals. The valve incorporates Sun's floating style construction, reducing the risk of internal parts binding from excessive installation torque or variations in cavity/cartridge machining. It has a capacity of 15 gpm (60 L/min) and operates at a maximum pressure of 5000 psi (350 bar). The control pilot flow ranges from 7-10 in\u00b3/min (0.11-0.16 L/min), with typical response times around 10 ms. Maximum valve leakage is specified at 2 in\u00b3/min (30 cc/min) at 1000 psi (70 bar). Adjustments can be made using the W or Y control throughout its full range unless a special setting is specified.