SUN HYDRAULICS
RBAACEV

***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 RBAACEV (RBAACEV) is a direct-acting, pilot relief cartridge designed to remotely control the pressure setting of other pilot-operated valves. This valve is particularly suitable for load-holding applications due to its capability to manage back pressure on the tank port at a 1:1 ratio directly additive to the valve setting. It features a main stage orifice protected by a 150-micron stainless steel screen and incorporates Sun's floating style construction to minimize internal parts binding due to installation torque or machining variations. The cartridge is compatible with systems using phosphate ester fluids when configured with EPDM seals, but it should not be exposed to petroleum-based fluids as they can damage the seals. The RBAACEV model includes corrosion-resistant options identified by suffixes AP or LH for external stainless steel or zinc-nickel plated components, respectively. It offers an adjustable range throughout its full capacity using W or Y controls unless specified otherwise for special settings. The valve can handle a maximum operating pressure of 5000 psi (350 bar) and has a typical response time of 2 milliseconds. With a capacity of 0.5 gpm (2 L/min), this cartridge valve ensures minimal leakage at maximum conditions, making it robust and stable. Installation specifics include a valve hex size of 1-1/8 inches (28.6 mm) and an installation torque range between 45-50 lbf-ft (61-68 Nm). The adjustment screw requires a 5/32 inch (4 mm) internal hex size tool, while the locknut has a hex size of 9/16 inch (15 mm) with an appropriate torque range of 80-90 lbf-in (9-10 Nm). The model weighs approximately 0.50 lb (0.25 kg), and it uses Viton seal kits for optimal performance in its intended applications.