SUN HYDRAULICS
FQIAXAN/LH

***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 FQIAXAN/LH (FQIAXAN/LH) is a flow fuse cartridge designed to maintain the position of a hydraulic actuator in the event of a hose or line break. This valve allows for normal flow to and from the actuator but will instantly close if the flow from the actuator exceeds its set threshold, providing a critical safety measure in hydraulic systems. The cartridge is built with Sun's floating style construction, which minimizes risks of internal parts binding due to excessive installation torque or machining variations. It features a spool-type design, which may result in some leakage and potential actuator drift. The FQIAXAN/LH operates within a capacity of 50 gpm (200 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). With a cavity size of T18A and series 4 designation, it requires an installation torque between 350 and 375 lbf ft (475 - 508 Nm). The valve's hex size measures at 1 5/8 inches (41.3 mm), and it weighs approximately 2.90 lb (1.30 kg). For optimal performance, customers must specify their desired flow rating upon ordering, ensuring that it is at least 25% above the maximum normal system flow to prevent false tripping. This component is not intended for use as an oil loss prevention device or for fire protection purposes; its primary function is to control actuator movement during hose failure scenarios. Due to its sensitivity to transient flows, careful consideration should be taken when selecting the appropriate setting for this flow fuse. Additionally, the valve resets once pressures at port 1 and port 2 are equalized, maintaining system integrity post-activation.