SUN HYDRAULICS
RBAAKCN

***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 RBAAKCN (RBAAKCN) is a direct-acting pilot relief cartridge designed to remotely control pressure settings in other pilot-operated valves, making it suitable for systems requiring precise pressure management. This cartridge is ideal for load-holding applications, with its main stage orifice protected by a 150-micron stainless steel screen to ensure durability and performance. 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 use in systems containing phosphate ester fluids, but caution is advised against exposure to petroleum-based substances, which could damage the seals. The RBAAKCN model features Sun's floating style construction, minimizing the risk of internal part binding due to excessive installation torque or machining variations. It is corrosion-resistant and available with external stainless steel components or zinc-nickel plated components, identified by model code suffixes AP or LH respectively. The valve has a capacity of 0.5 gpm (2 L/min) and a maximum operating pressure of 5000 psi (350 bar). With a typical response time of 2 ms and maximum valve leakage at 110 SUS (24 cSt) being just 5 drops/min (0.3 cc/min), this valve ensures efficient performance. Adjustments can be made using W or Y controls throughout its full range unless specified otherwise for special settings. The valve hex size is 1-1/8 in. (28.6 mm), with an installation torque requirement of 45-50 lbf ft (61-68 Nm). The adjustment screw has an internal hex size of 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm), requiring a locknut torque of 80-90 lbf in. (9-10 Nm). The model weighs approximately .50 lb (.25 kg).