SUN HYDRAULICS
RVCACEN

***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 RVCACEN (Material Number: RVCACEN) is a ventable, pilot-operated, balanced piston relief cartridge designed as a normally closed pressure regulating valve. It is engineered to open at the inlet port 1 when the pressure reaches the preset valve setting, directing flow to tank port 2 to maintain desired pressure levels. The valve features a vent port 3 for remote control through other pilot or two-way valves, contributing to its accuracy and moderate response speed. This model is particularly suitable for cross-port relief circuits due to its capability of handling maximum pressure at port 2, though users should consider spool leakage in such applications. The main stage orifice includes a protective 150-micron stainless steel screen but is unsuitable for load-holding applications because of spool leakage. The RVCACEN accommodates back pressure on tank port 2 directly proportional to the valve setting and is compatible with phosphate ester fluids when equipped with EPDM seals. Exposure to petroleum-based fluids can damage these seals. The design incorporates Sun's floating style construction technique, which minimizes internal binding risks due to installation torque or machining variations. Key specifications include a capacity of 15 gpm (60 L/min), a maximum operating pressure of 5000 psi (350 bar), and a control pilot flow between 7-10 in\u00b3/min (0.11-0.16 L/min). The typical response time is around 10 ms, with maximum valve leakage at specified conditions being 2 in\u00b3/min (30 cc/min). Adjustments can be made via an internal hex screw and are secured with a locknut requiring specific torques for optimal performance.