SUN HYDRAULICS
RBAACEN

***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 RBAACEN (RBAACEN) is a direct-acting, pilot relief cartridge designed to remotely control the pressure setting of other pilot-operated valves. This component is ideal for applications requiring load holding and features a main stage orifice protected by a 150-micron stainless steel screen. The valve's design allows back pressure on the tank port (port 2) to be directly additive to the valve setting at a 1:1 ratio, making it suitable for precise pressure control tasks. Cartridges with EPDM seals are specifically intended for use in systems with phosphate ester fluids, as exposure to petroleum-based fluids can damage these seals. The valve incorporates Sun's floating style construction, which minimizes the risk of internal parts binding due to excessive installation torque or machining variations. The RBAACEN model can handle a capacity of 0.5 gpm (2 L/min) and operates at a maximum pressure of 5000 psi (350 bar). It features an impressive response time of approximately 2 ms and maintains a maximum valve leakage rate of 5 drops/min (0.3 cc/min) at 110 SUS (24 cSt). The adjustment mechanism allows for up to five clockwise turns to increase the setting, with specific dimensions provided for installation and adjustment tools, including a valve hex size of 1-1/8 in. (28.6 mm) and an internal hex size adjustment screw of 5/32 in. (4 mm). The locknut requires a torque range between 80-90 lbf-in (9-10 Nm), ensuring secure settings during operation. This corrosion-resistant cartridge is designed for harsh environments, with options available for external stainless steel or zinc-nickel plated components identified by specific model code suffixes like AP or LH. With its robust construction and versatile application potential, this Sun Hydraulics relief cartridge is an essential component in hydraulic systems requiring reliable pressure control solutions.