SUN HYDRAULICS
RVGACHV

***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 RVGACHV (RVGACHV) is a ventable, pilot-operated, balanced piston relief cartridge designed for precise pressure regulation in hydraulic systems. This normally closed valve opens to the tank port when the inlet pressure reaches the set threshold, effectively throttling flow to maintain desired pressure levels. It features a vent port for remote control by other pilot or 2-way valves, enhancing its versatility in various applications. Known for its accuracy and smooth operation, this valve exhibits low pressure rise versus flow and operates quietly with moderate speed. It can accept maximum pressure at port 2, making it suitable for cross-port relief circuits; however, users should account for potential spool leakage in such configurations. This model is not recommended for load-holding applications due to spool leakage. The main stage orifice is protected by a 150-micron stainless steel screen to ensure durability and performance. The valve's setting can be affected by back pressure on the tank port at a 1:1 ratio. Cartridges with EPDM seals are compatible with phosphate ester fluids but are susceptible to damage from petroleum-based substances. The RVGACHV incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. It fits into cavity T-17A and belongs to series 3 with a capacity of up to 60 gpm (240 L/min). The maximum operating pressure is rated at 5000 psi (350 bar), with control pilot flow between 15-20 in\u00b3/min (0.25-0.33 L/min). Typical response time is around 10 ms, and maximum valve leakage at specific conditions is noted as 4 in\u00b3/min (65 cc/min). The adjustment requires approximately five clockwise turns to increase settings, and it includes specific torque requirements for installation and adjustment components.