SUN HYDRAULICS
COHCXBN

***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 COHCXBN (COHCXBN) is a high-performance pilot-to-close check cartridge valve designed for hydraulic systems requiring reliable, directional flow control. This valve facilitates fluid flow from port 1 to port 2 while effectively blocking any reverse flow from port 2 to port 1, ensuring operational integrity and safety in hydraulic circuits. The COHCXBN operates with a nominal pilot ratio of 1.8:1, meaning that it can close against a higher pressure at port 1 when controlled pressure is applied at the pilot port. This feature makes it particularly useful in applications where control over fluid handling and directionality is critical. The valve boasts a maximum operating pressure of 5000 psi (350 bar) and has a capacity of up to 80 gpm (320 L/min), making it suitable for high-flow systems. The construction of the valve includes Sun's floating style design which minimizes internal part binding \u2014 an issue that can arise from excessive installation torque or variations in cavity/cartridge machining. This design consideration enhances the durability and reliability of the valve under varied operational conditions. With a robust build, the COHCXBN weighs about 1.80 lbs (0.80 kg) and requires an installation torque between 150 - 160 lbf ft (203 - 217 Nm). The valve\u2019s leakage specification stands impressively low at less than one drop per minute at 110 SUS (24 cSt), highlighting its efficiency in maintaining system integrity even under demanding circumstances. Additionally, the valve's compatibility with Viton seal kits further underscores its adaptability in diverse hydraulic setups, ensuring prolonged service life and reduced maintenance needs.