SUN HYDRAULICS
RBACWAN

***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 RBACWAN (RBACWAN) is a direct-acting, pilot relief cartridge valve designed for controlling pressure settings in hydraulic systems. This component is particularly suitable for use with other higher flow valves due to its limited capacity to pilot flow. It features EPDM seals, making it compatible for use in systems with phosphate ester fluids, while cautioning against exposure to petroleum-based fluids which can damage the seals. The main stage orifice of the valve is shielded by a 150-micron stainless steel screen, enhancing its durability and performance in load-holding applications. Notably, back pressure on the tank port (port 2) directly affects the valve setting at a 1:1 ratio. The RBACWAN model incorporates Sun's floating style construction, reducing the risk of internal parts binding due to excessive installation torque or cavity machining variations. This design choice contributes to its robustness and reliability in various applications. The valve has a capacity of 0.25 gpm (1 L/min) and can operate at a maximum pressure of 5000 psi (350 bar), with typical response times around 2 milliseconds. It exhibits minimal leakage rates at maximum conditions and allows for adjustment through a number of clockwise turns. The corrosion-resistant feature of this cartridge valve makes it ideal for use in harsh environments, with options available for external stainless steel or zinc-nickel plated components based on specific needs. The model also supports configurations with W and Y controls that can be adjusted throughout their full range unless specified otherwise for special settings. Weighing approximately 0.30 lb (0.15 kg), the RBACWAN provides reliable performance in preventing overpressure scenarios within hydraulic systems while maintaining ease of adjustment and installation flexibility.