SUN HYDRAULICS
RVCDWAV

***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 RVCDWAV (Material Number: RVCDWAV) 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 upon reaching the set pressure at inlet port 1, effectively throttling flow to regulate pressure. This model 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. Notably accurate and smooth in operation, these valves exhibit low pressure rise relative to flow and moderate speed. The valve can be remotely controlled below its setting through the pilot relief on vent port 3 and can accommodate 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, it's important to note that this valve is not suitable for load-holding applications due to spool leakage. The 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 fluids will damage these seals. The RVCDWAV incorporates Sun's floating style construction, minimizing internal parts binding from excessive torque or machining variations. Specifications include a cavity T-21A series with a capacity of 15 gpm (60 L/min), maximum operating pressure of 5000 psi (350 bar), control pilot flow between 7-10 in\u00b3/min (0.11-0.16 L/min), typical response time of 10 ms, and maximum valve leakage at specified conditions of 2 in\u00b3/min (30 cc/min). The adjustment screw has an internal hex size of 5/32 in., with the locknut hex size being 9/16 in., requiring specific installation torques.