SUN HYDRAULICS
RVCACWN

***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 RVCACWN (RVCACWN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve is normally closed and activates when the inlet port pressure reaches its set point, opening to the tank port to throttle flow and maintain desired pressure levels. A distinct feature of this model is the vent port, which allows for remote control through other pilot or two-way valves. Known for its accuracy and smooth operation, this valve offers low pressure rise versus flow and moderate response speed. The RVCACWN can handle maximum pressures at port 2, making it suitable for cross-port relief circuits; however, users should account for potential spool leakage in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen to prevent contamination. It's important to note that this cartridge is not ideal for load-holding applications due to spool leakage and that back pressure on the tank port directly influences the valve setting at a 1:1 ratio. For systems utilizing phosphate ester fluids, cartridges with EPDM seals are recommended as exposure to petroleum-based substances can damage these seals. The design incorporates Sun's floating style construction, minimizing internal binding risks due to excessive installation torque or machining variations. This Series 1 cartridge fits into a T-11A cavity and has a capacity of up to 15 gpm (60 L/min), with factory pressure settings established at 4 gpm (15 L/min). It operates under a maximum pressure of 5000 psi (350 bar) with typical response times around 10 ms. The valve's installation requires specific torque settings, ensuring proper function and longevity in demanding hydraulic environments.