SUN HYDRAULICS
RBAAFWN

***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 RBAAFWN (RBAAFWN) is a direct-acting, pilot relief cartridge designed to remotely control the pressure setting of other pilot-operated valves. This valve is ideal for load holding applications and should be used in conjunction with higher flow valves due to its limited capacity to pilot flow. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability in various conditions. Notably, the valve's back pressure on the tank port (port 2) directly adds to the valve setting at a 1:1 ratio. For systems utilizing phosphate ester fluids, cartridges with EPDM seals are recommended, as exposure to petroleum-based fluids can damage these seals. The RBAAFWN model incorporates Sun's floating style construction, which minimizes internal part binding caused by excessive installation torque or machining variations. It features corrosion-resistant options identified by suffixes AP (external stainless steel components) or LH (external zinc-nickel plated components), making it suitable for use in corrosive environments. With a capacity of 0.5 gpm (2 L/min) and a maximum operating pressure of 5000 psi (350 bar), this valve demonstrates robust performance capabilities. Adjustments can be made throughout its full range using W or Y controls unless a special setting is specified, representing the maximum setting of the valve. The valve has an installation torque range of 45-50 lbf ft (61-68 Nm) and includes an internal hex size adjustment screw for precise control. Weighing just 0.50 lb (0.25 kg), it offers ease of handling and installation in various hydraulic systems.