SUN HYDRAULICS
COHCXEV

***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 COHCXEV (COHCXEV) is a highly specialized hydraulic valve designed for precise fluid control in various applications. This spring-biased closed, pilot-to-close check cartridge operates with a nominal pilot ratio of 1.8:1, allowing it to effectively manage flow between two ports while preventing reverse flow under any condition. Specifically, the valve facilitates flow from port 1 to port 2 and uses an external pilot pressure at a specified ratio to oppose pressure at port 1, ensuring reliable closure and operation. The COHCXEV is engineered to handle a maximum operating pressure of 5000 psi (350 bar) and can accommodate flow rates up to 80 gpm (320 L/min), making it suitable for high-capacity systems. The valve's design incorporates Sun\u2019s floating style construction which minimizes internal parts binding\u2014this is crucial for maintaining performance even when variations in installation torque or cavity/cartridge machining occur. For maintenance or repair, the valve supports a Viton seal kit (990017006) ensuring long-term durability and resistance against various fluids and temperatures. The model weighs approximately 1.80 lbs (0.80 kg), with installation requiring a specific torque range of 150-160 lbf ft (203-217 Nm). This precision in manufacturing extends to its minimal allowable leakage, which is quantified at less than one drop per minute at a fluid viscosity of 110 SUS (24 cSt). Overall, the COHCXEV model from Sun Hydraulics offers robust performance for hydraulic systems requiring reliable non-return functionality along with the capability of handling significant pressures and flow rates without compromise on reliability or efficiency.