SUN HYDRAULICS
RBAAFAN

***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 RBAAFAN (RBAAFAN) is a direct-acting, pilot relief cartridge designed to control the pressure setting of other pilot-operated valves. These cartridges are primarily used in load-holding applications due to their ability to manage pilot flow. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. Notably, back pressure on the tank port (port 2) directly adds to the valve setting at a 1:1 ratio, which is crucial for precise control in various hydraulic systems. The cartridges configured with EPDM seals are suitable for use with phosphate ester fluids; however, they should not be exposed to petroleum-based fluids as this could damage the seals. For environments prone to corrosion, these valves can be configured with corrosion-resistant materials, identified by model code suffixes AP or LH for external stainless steel or zinc-nickel plated components, respectively. The Sun floating style construction minimizes internal part binding due to excessive torque or machining variations during installation. This valve fits into a T-3A cavity and has a capacity of 0.5 gpm (2 L/min), with a maximum operating pressure of 5000 psi (350 bar). It features an impressive response time of approximately 2 milliseconds and minimal leakage at maximum conditions. The adjustment mechanism allows for five clockwise turns to increase the setting, while the valve hex size measures 1 1/8 inches (28.6 mm). Installation requires torque between 45\u201350 lbf ft (61\u201368 Nm), and it includes an internal hex size adjustment screw of 5/32 inches (4 mm). Weighing just 0.50 lb (0.25 kg), this compact unit is ideal for various hydraulic applications requiring precise pressure control and robust performance under demanding conditions.