UP10-31A-0-N-70-30/18 CARTRIDGE

***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 5621400.18 (Material Number: 5621400.18) is a screw-in, cartridge-style remote sequence pilot unloading valve 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, the UP10-31 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 vents at port 3, so any back pressure at this port directly affects the valve setting on a one-to-one basis. If the pressure at port 1 drops below the established reload value ratio, the valve closes and blocks flow from port 2 to port 3 again. Notably, adjustments cannot be backed out of the valve, ensuring that springs do not go solid during operation. The UP10-31 also features optional spring ranges up to 207 bar (3000 psi) and is constructed with a hardened spool and cage for extended durability. Its design adheres to industry-common sizes, making it versatile for various applications requiring reliable control in hydraulic systems.