SUN HYDRAULICS
RBADCBN

***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 RBADCBN (RBADCBN) is a direct-acting, pilot relief cartridge designed to incorporate back-to-back check valves. This configuration allows the valve to remotely control two other pilot-operated valves or serve as a thermal relief for both ends of an actuator. It is particularly suitable for load holding applications due to its ability to prevent overpressure caused by thermal expansion of the fluid. The back-to-back check valves are crucial in preventing cross talk between the two remote-controlled valves, and one adjustment can control both valves simultaneously. The valve's check cracking pressure is set at 15 psi (1 bar), and any pressure at port 3 adds directly to the valve setting. The RBADCBN features Sun's floating style construction, minimizing the risk of internal parts binding from excessive installation torque or variations in cavity-cartridge machining. It has a capacity of 0.25 gpm (1 L/min) and a typical response time of 2 milliseconds, with maximum leakage at 110 SUS (24 cSt) being 5 drops/minute (0.3 cc/min). Adjustments can be made with up to five clockwise turns to increase settings, utilizing an internal hex size of 5/32 inches (4 mm). The valve's hex size measures 7/8 inches (22.2 mm), requiring an installation torque between 30 and 35 lbf ft (41 and 47 Nm). The locknut has a hex size of 9/16 inches (15 mm) and should be torqued between 80 and 90 lbf in (9 and 10 Nm). For sealing, it uses Viton seal kits, specifically part number 990011006.