SUN HYDRAULICS
RVIACNV

***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 RVIACNV (RVIACNV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve remains normally closed until the inlet pressure reaches a pre-set level, at which point it opens to the tank port, throttling flow to maintain the desired pressure. It features a vent port that allows for remote control via other pilot or two-way valves. The RVIACNV is known for its accuracy, low pressure rise versus flow characteristics, smooth and quiet operation, and moderate response speed. It is capable of handling maximum pressure at port 2 and can be used in cross-port relief circuits, though spool leakage should be considered in such applications. The valve includes a main stage orifice protected by a 150-micron stainless steel screen and requires that the relief valve setting always exceeds the pilot valve setting. It is not suitable for load-holding applications due to potential spool leakage. Cartridges with EPDM seals are intended for use with phosphate ester fluids only; exposure to petroleum-based fluids can damage these seals. The Sun floating style construction minimizes internal binding risks from excessive installation torque or machining variations. This cartridge fits into a T-19A cavity and has a capacity of 120 gpm (480 L/min). It operates at a maximum pressure of 5000 psi (350 bar) with control pilot flow ranging from 15 to 20 in\u00b3/min (0.25 to 0.33 L/min). Typical response time is around 10 ms, with maximum valve leakage at specified conditions being 5 in\u00b3/min (80 cc/min). The adjustment mechanism allows up to five full clockwise turns to increase the setting, with specific torque values provided for installation and adjustment components.