HYDRAFORCE
5621440

***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 Hydraforce directly.***
The Hydraforce 5621440 (5621440) is a screw-in, cartridge-style remote sequence pilot unloading valve, specifically designed for use in accumulator-type hydraulic systems. Known as the UP10-31, this valve offers optional fixed unload/reload pressure ratios of 60%, 70%, or 80%. In its default state, it blocks flow from port 2 to port 3. When a predetermined pressure is reached at port 1, the spool shifts to permit flow from port 2 to port 3. The spring chamber's venting at port 3 means that any back pressure here will directly affect the valve setting on a one-to-one basis. If the pressure at port 1 decreases below the established reload value, the valve closes again, blocking flow from port 2 to port 3. Notable features include adjustments that cannot be backed out of the valve and springs designed to avoid becoming solid. It also offers optional spring ranges up to 207 bar (3000 psi). The hardened spool and cage contribute to its longevity and reliability. Additionally, it is designed in an industry-common size for ease of integration into existing systems.