SUN HYDRAULICS
COHCXFV

***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 COHCXFV (COHCXFV) is a high-performance, pilot-to-close check cartridge valve designed for hydraulic systems requiring reliable, directional flow control. This valve features a nominal pilot ratio of 1.8:1, meaning it can effectively manage closing forces against higher pressure differentials; specifically, a 1000 psi pressure at the pilot port will close the valve against a pressure of 1800 psi at port 1. The COHCXFV operates by allowing fluid flow from port 1 to port 2 while completely blocking reverse flow from port 2 to port 1 under any condition. Constructed with Sun's floating style design, the COHCXFV minimizes potential internal part binding that could result from excessive installation torque or variances in cavity/cartridge machining. This design ensures consistent and reliable operation even under varying operational conditions. The valve is housed within a T17A cavity and belongs to the Series 3 category. With a maximum operating pressure rating of 5000 psi (350 bar) and a capacity to handle up to 80 gpm (320 L/min), this valve is suitable for high-flow applications. It ensures minimal leakage, with maximum valve leakage specified at approximately one drop per minute (0.07 cc/min). For installation, it requires a hex size of 1-1/4 inches (31.8 mm) and an installation torque between 150-160 lbf ft (203-217 Nm). The model weighs about 1.80 lbs (0.80 kg), making it robust yet manageable for system integration. The COHCXFV uses Viton seals for enhanced durability and chemical resistance, ensuring long service life and performance reliability in various hydraulic applications where precise fluid control is essential.