SUN HYDRAULICS
RBACJDN

***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 RBACJDN (RBACJDN) is a direct-acting, pilot relief cartridge designed to remotely control the pressure setting of other pilot-operated valves. This valve is specifically engineered for use in systems where capacity is limited to pilot flow, making it ideal for integration with higher flow valves. The RBACJDN model features EPDM seals, suitable for phosphate ester fluid systems, while being incompatible with petroleum-based fluids due to potential seal damage. It incorporates a 150-micron stainless steel screen to protect the main stage orifice and is suitable for load-holding applications. The valve's back pressure on tank port 2 directly affects the valve setting at a 1:1 ratio, providing precise control. It offers adjustable W and Y controls, which can be customized with or without a special setting; without it, the valve remains adjustable throughout its full range. The corrosion-resistant design includes options for external stainless steel components or zinc-nickel plating, indicated by suffixes AP or LH in the model code. The RBACJDN utilizes Sun's floating style construction to minimize internal parts binding due to excessive installation torque or machining variations. It fits into Cavity T-10A Series 1 and has a capacity of 0.25 gpm (1 L/min) with a maximum operating pressure of 5000 psi (350 bar). The typical response time is approximately 2 ms, and maximum valve leakage at 110 SUS (24 cSt) is limited to 5 drops/min (0.3 cc/min). The adjustment mechanism allows up to five clockwise turns to increase settings, with specific torque requirements provided for installation and adjustment components. This robust cartridge valve weighs approximately 0.30 lb (0.15 kg) and comes with a Viton seal kit option, ensuring reliable performance across various applications requiring precise pressure control and durability in corrosive environments.