SUN HYDRAULICS
COJCXBN

***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 COJCXBN (COJCXBN) is a sophisticated hydraulic valve designed for specific fluid control applications, ensuring efficient operation in systems requiring reliable non-return functionality. This spring-biased closed, pilot-to-close check cartridge valve utilizes a 1.8:1 pilot ratio to manage flow direction and pressure effectively. It facilitates flow from port 1 to port 2 while completely blocking reverse flow from port 2 to port 1 under any conditions, enhancing system safety and performance. The valve operates by opposing pressure at the external pilot port to that at port 1 with its nominal pilot ratio of 1.8:1, which means a pressure of 1000 psi at the pilot will close against a pressure of 1800 psi at port 1. This feature is crucial for applications where precise pressure balancing is necessary. The design incorporates Sun's floating style construction that minimizes internal parts binding\u2014a common issue in valves due to excessive installation torque or variations in cavity/cartridge machining. With a maximum operating pressure of 5000 psi and a flow capacity up to 160 gpm, the COJCXBN is capable of handling high-pressure and high-flow applications efficiently. Its robust construction ensures minimal leakage, specified at only one drop per minute, thereby maintaining system integrity and reducing fluid loss. The valve's hex size is 1-5/8 inches, and it requires an installation torque between 350 - 375 lbf ft., making it compatible with various industrial setups without requiring special tools for installation. Overall, the COJCXBN model is an essential component for hydraulic systems where backflow prevention and controlled flow are critical, ensuring reliability and performance even under stringent operational conditions.