SUN HYDRAULICS
RBAAKWV

***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 RBAAKWV (RBAAKWV) is a direct-acting, pilot relief cartridge designed to remotely control the pressure setting of other pilot-operated valves. This component is specifically crafted for applications where capacity is limited to pilot flow, making it ideal for use with higher flow valves. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability in load-holding applications. Notably, back pressure on the tank port (port 2) directly adds to the valve setting at a 1:1 ratio. The cartridge can be configured with EPDM seals for systems utilizing phosphate ester fluids, though these seals are not compatible with petroleum-based fluids, greases, or lubricants. The valve offers W and Y controls that allow for full-range adjustment unless a special setting is specified\u2014this special setting indicates the maximum valve setting. For use in corrosive environments, corrosion-resistant options are available and identified by specific model code suffixes such as AP or LH. Incorporating Sun's floating style construction minimizes the risk of internal parts binding due to excessive installation torque or cavity/cartridge machining variations. The RBAAKWV has a capacity of 0.5 gpm (2 L/min) and can operate at a maximum pressure of 5000 psi (350 bar). Typical response time is around 2 ms, with maximum valve leakage at 110 SUS (24 cSt) being just 5 drops/min (0.3 cc/min). The valve features an adjustment range requiring approximately five clockwise turns to increase settings. Installation specifications include a valve hex size of 1-1/8 inches (28.6 mm), installation torque between 45-50 lbf ft (61-68 Nm), an adjustment screw internal hex size of 5/32 inches (4 mm), and locknut torque specifications of 80-90 lbf in (9-10 Nm). The model weighs approximately 0.50 lb (0.25 kg) and uses Viton seal kits as standard.