SUN HYDRAULICS
RVCACCV

***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 RVCACCV (RVCACCV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation. This valve is normally closed and activates when the inlet port 1 pressure reaches the preset value, subsequently opening to tank port 2 to throttle flow and maintain desired pressure levels. It features a vent port 3 for remote control via other pilot or two-way valves, ensuring accuracy with minimal pressure rise versus flow. The valve's design allows for smooth, quiet operation and moderate response speed. It is suitable for cross-port relief circuits but should not be used in load-holding applications due to potential spool leakage. The main stage orifice is safeguarded by a 150-micron stainless steel screen, and the valve can handle maximum pressure at port 2. Notably, back pressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. Cartridges fitted with EPDM seals are intended for systems using phosphate ester fluids; exposure to petroleum-based fluids will damage these seals. The floating style construction minimizes binding risks from excessive installation torque or cavity/cartridge machining variations. This Series 1 cartridge has a capacity of up to 15 gpm (60 L/min) and operates under a maximum pressure of 5000 psi (350 bar). It exhibits typical response times of around 10 ms and maximum leakage of 2 in\u00b3/min at pressures up to 1000 psi (30 cc/min at 70 bar). Adjustments can be made with up to five clockwise turns, utilizing an internal hex size of 5/32 inches (4 mm). The model weighs approximately .40 lb (.20 kg), with installation torque ranging from 30-35 lbf ft (41-47 Nm).