SUN HYDRAULICS
RBACYEN

***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 RBACYEN (Material Number: RBACYEN) 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 applications requiring load holding and is effective in systems utilizing phosphate ester fluids, thanks to its EPDM seals. However, it should be noted that exposure to petroleum-based fluids can damage these seals. The main stage orifice is safeguarded by a 150-micron stainless steel screen, ensuring durability and reliability. This cartridge valve can handle a maximum operating pressure of 5000 psi (350 bar) and has a capacity of 0.25 gpm (1 L/min). Its response time is typically around 2 milliseconds with minimal leakage at standard conditions. The RBACYEN model incorporates Sun's floating style construction, which helps prevent internal binding due to excessive installation torque or machining variations. It also features corrosion-resistant options identified by specific suffixes in the model code for environments prone to corrosion. Adjustment settings are versatile; the valve can be adjusted throughout its full range using W or Y controls unless a special maximum setting is specified. Installation requires a cavity T-10A with series 1 specifications, and the valve hex size measures 7/8 inch (22.2 mm). Installation torque ranges between 30 to 35 lbf ft (41 to 47 Nm), while the adjustment screw and locknut have specific hex sizes and torque requirements for secure installation. The product weighs approximately 0.30 lb (0.15 kg), making it lightweight yet robust for its intended applications.