SUN HYDRAULICS
RBADLWV

***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 RBADLWV (RBADLWV) is a direct-acting, pilot relief cartridge designed to incorporate back-to-back check valves, allowing it to remotely control two other pilot-operated valves or serve as a thermal relief for both ends of an actuator. This valve is particularly suited for load-holding applications, as it prevents overpressure due to thermal expansion of fluid. The back-to-back check valves are crucial in preventing cross talk between the two remotely controlled valves, and one adjustment can control both valves simultaneously. It has a check cracking pressure of 15 psi (1 bar), and pressure at port 3 is directly additive to the valve setting. The valve features Sun's floating style construction, minimizing the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With a cavity size of T-11A and being part of Series 1, this cartridge has a capacity of 0.25 gpm (1 L/min) and typical response time of 2 ms. It offers maximum valve leakage at 110 SUS (24 cSt) of 5 drops/min (0.3 cc/min). The adjustment requires five clockwise turns to increase the setting, with specific hex sizes for installation and adjustment screws: valve hex size is 7/8 in. (22.2 mm), adjustment screw internal hex size is 5/32 in. (4 mm), and locknut hex size is 9/16 in. (15 mm). Installation torque ranges from 30 to 35 lbf ft (41 to 47 Nm), while locknut torque ranges from 80 to 90 lbf in (9 to 10 Nm). The seal kit for this cartridge uses Viton material with part number: 990011006.