SUN HYDRAULICS
RBADOCN

***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 RBADOCN (RBADOCN) is a direct-acting, pilot relief cartridge designed for versatile hydraulic applications. This cartridge features back-to-back check valves, allowing it to remotely control two other pilot-operated valves or act as a thermal relief for both ends of an actuator. This configuration makes it particularly suitable for load-holding applications where preventing overpressure due to thermal expansion is crucial. The valve's capacity is limited to pilot flow, making it ideal for use with other valves that have comparable pilot flows. One of the key features of this cartridge is its ability to prevent cross talk between the two controlled valves, ensuring stable and reliable operation. The RBADOCN has a check cracking pressure of 15 psi (1 bar), and the pressure at port 3 directly adds to the valve setting, offering precise control over hydraulic systems. It incorporates Sun's floating style construction, which minimizes the risk of internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. The valve has a cavity T-11A Series 1 with a capacity of 0.25 gpm (1 L/min) and a typical response time of 2 ms. Maximum valve leakage at 110 SUS (24 cSt) is limited to 5 drops/min (0.3 cc/min). Adjustment settings include five clockwise turns to increase the setting, with specific torque requirements for installation and adjustment components: valve hex size is 7/8 in (22.2 mm), installation torque ranges from 30 - 35 lbf ft (41 - 47 Nm), adjustment screw internal hex size is 5/32 in (4 mm), locknut hex size is 9/16 in (15 mm), and locknut torque ranges from 80 - 90 lbf in (9 -10 Nm). The seal kit for this cartridge uses Viton material with part number 990011006, ensuring durability and compatibility with various hydraulic fluids.