SUN HYDRAULICS
RBAAFEV

***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 RBAAFEV (RBAAFEV) is a direct-acting, pilot relief cartridge valve designed to remotely control the pressure setting of other pilot-operated valves. Ideal for load holding applications, this valve is constructed with a 150-micron stainless steel screen to protect the main stage orifice, ensuring efficient operation. It is important to note that back pressure on port 2 directly affects the valve setting at a 1:1 ratio. The RBAAFEV model can be configured with EPDM seals for compatibility with phosphate ester fluids, although these seals should not be exposed to petroleum-based fluids as it may cause damage. The valve allows adjustment throughout its full range using W or Y controls unless a special setting is specified, which then represents the maximum setting. Corrosion-resistant versions are available with either stainless steel or zinc-nickel plated components, indicated by suffixes AP or LH respectively in the model code. The RBAAFEV features Sun's floating style construction to minimize binding due to excessive installation torque or machining variations. It fits into a Cavity T-3A and has a capacity of 0.5 gpm (2 L/min), withstanding a maximum operating pressure of 5000 psi (350 bar). The typical response time is about 2 milliseconds, and it exhibits minimal leakage at approximately 5 drops/min (0.3 cc/min) at 110 SUS (24 cSt). For adjustments, there are five clockwise turns available to increase settings, and specific torque requirements are detailed for both installation and adjustment components. This robust and stable valve is suitable for systems where rapid response and dirt tolerance are critical factors in maintaining optimal performance.