SUN HYDRAULICS
RBAAKEN

***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 RBAAKEN (RBAAKEN) is a direct-acting, pilot relief cartridge designed to remotely control the pressure setting of other pilot-operated valves. This component is ideal for load-holding applications, as it maintains stability and robustness under various conditions. It features a main stage orifice safeguarded by a 150-micron stainless steel screen, ensuring reliable operation by preventing debris ingress. The valve is engineered for systems with phosphate ester fluids when configured with EPDM seals, as exposure to petroleum-based fluids can damage these seals. The RBAAKEN model allows for adjustable settings using W or Y controls, with or without a special setting that caps the maximum valve setting. For environments prone to corrosion, this model can be specified with AP or LH suffixes for external stainless steel or zinc-nickel plated components, respectively. The cartridge's design incorporates Sun\u2019s floating style construction, which minimizes potential binding of internal parts due to excessive installation torque or machining variations in the cavity/cartridge interface. With a capacity of 0.5 gpm (2 L/min) and a maximum operating pressure of 5000 psi (350 bar), this valve ensures efficient performance in demanding applications. It features a rapid response time of approximately 2 ms and minimal leakage at 110 SUS (24 cSt), measured at 5 drops/min (0.3 cc/min). Installation requires specific torque settings: valve installation torque is between 45-50 lbf ft (61-68 Nm), while locknut torque ranges from 80-90 lbf in (9-10 Nm). This product weighs approximately 0.50 lb (0.25 kg) and includes a Viton seal kit for optimal sealing performance in diverse hydraulic systems.