SUN HYDRAULICS
RBAAKAN

***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 RBAAKAN (RBAAKAN) is a direct-acting, pilot relief cartridge valve designed to remotely control the pressure setting of other pilot-operated valves. This valve is particularly suitable for load-holding applications and should be used alongside higher flow valves due to its capacity being limited to pilot flow. It features a main stage orifice protected by a 150-micron stainless steel screen and incorporates Sun's floating style construction, minimizing the risk of internal parts binding from excessive installation torque or machining variations. The valve can handle a maximum operating pressure of 5000 psi (350 bar) and offers a typical response time of 2 milliseconds. The RBAAKAN model is versatile in its configuration, allowing for EPDM seals when used with phosphate ester fluids, though these seals are not compatible with petroleum-based fluids. The valve also offers corrosion-resistant options identifiable by suffixes AP or LH in the model code, indicating external stainless steel components or zinc-nickel plating, respectively. Adjustments can be made throughout its full range using W or Y controls unless a special setting is specified, which then represents the maximum setting. Additional specifications include a capacity of 0.5 gpm (2 L/min), valve hex size of 1 1/8 in. (28.6 mm), and installation torque ranging from 45 to 50 lbf ft (61 to 68 Nm). The adjustment screw has an internal hex size of 5/32 in. (4 mm), while the locknut hex size is 9/16 in. (15 mm) with a torque requirement between 80 to 90 lbf in. (9 to 10 Nm). The cartridge weighs approximately .50 lb (.25 kg) and comes with an available Viton seal kit identified by part number 990203006.