SUN HYDRAULICS
RVGACHN

***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 RVGACHN (RVGACHN) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This valve is normally closed and begins to open to tank port 2 when the inlet port 1 pressure reaches the set threshold, throttling flow to maintain the desired pressure. It features a vent port 3 that facilitates remote control through other pilot or two-way valves, offering enhanced control flexibility. Known for their accuracy and low-pressure rise versus flow, these valves operate smoothly and quietly with moderate speed. The RVGACHN is capable of handling maximum pressure at port 2, making it suitable for cross-port relief circuits; however, users should consider spool leakage in such applications. The main stage orifice is safeguarded by a 150-micron stainless steel screen. The valve is not ideal for load-holding applications due to potential spool leakage. Any back pressure on tank port 2 directly adds to the valve setting at a 1:1 ratio. This model incorporates Sun\u2019s floating style construction to reduce internal part binding risks due to excessive installation torque or machining variations. Cartridges with EPDM seals are intended for systems using phosphate ester fluids and may be damaged by petroleum-based substances. Key specifications include a cavity T-17A series with a capacity of up to 60 gpm (240 L/min), maximum operating pressure of 5000 psi (350 bar), and typical response time of 10 ms. The adjustment range involves five clockwise turns, with specific torque requirements for installation and adjustment components provided in the detailed specifications.