SUN HYDRAULICS
RBADCCN

***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 RBADCCN (RBADCCN) is a direct-acting, pilot relief cartridge designed with back-to-back check valves. This innovative design allows the valve to remotely control two other pilot-operated valves or serve as a thermal relief for both ends of an actuator. The valve is particularly effective in load-holding applications due to its ability to prevent overpressure caused by thermal expansion of the fluid. It is important to note that this valve should only be used with other valves that have similar pilot flows, as its capacity is limited to pilot flow. The RBADCCN features a single adjustment that controls two valves simultaneously, and the check cracking pressure is set at 15 psi (1 bar). The pressure at port 3 can be directly added to the valve setting, offering flexibility in various applications. The Sun floating style construction minimizes potential issues with internal parts binding due to excessive installation torque or cavity/cartridge machining variations. Key specifications include a cavity size of T-11A Series 1, a capacity of 0.25 gpm (1 L/min), and a typical response time of 2 milliseconds. The maximum valve leakage at 110 SUS (24 cSt) is limited to 5 drops/minute (0.3 cc/min). For installation, the valve requires a hex size of 7/8 inch (22.2 mm) and an installation torque between 30 - 35 lbf ft (41 - 47 Nm). The adjustment screw has an internal hex size of 5/32 inch (4 mm), while the locknut hex size is 9/16 inch (15 mm) with a torque setting between 80 - 90 lbf in (9 - 10 Nm). The seal kit for this cartridge uses Viton material, part number: 990011006.