SUN HYDRAULICS
DNCATCV928

***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 DNCATCV928 (DNCATCV928) is a solenoid-operated, 4-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. It is specifically engineered to minimize oil loss during position transitions, making it an excellent choice for pilot control circuits. This valve operates with port 3 as the inlet and port 1 as the tank, although reverse flow is possible but not recommended due to potential performance inconsistencies. The solenoid tube assembly is rated for fatigue at 5000 psi (350 bar), ensuring robust service life. Notably, this valve requires no minimum hydraulic pressure for operation, enhancing its versatility in various applications. Cartridges configured with EPDM seals are suitable for systems utilizing phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided to prevent seal damage. The wet armature design allows the working fluid to surround the armature, which can impact performance if the coil remains energized for extended periods. Users should be cautious of fluid breakdown in water-glycol mixtures under these conditions. The DNCATCV928 offers multiple coil termination and voltage options, including those with surge protection. The high-efficiency solenoid design delivers strong spool actuation force per watt expended, ensuring reliable valve shifting. Coils are interchangeable within Sun's Series 1 solenoid products and can be mounted bidirectionally on the tube. Additional features include various coil connector options with ratings up to IP69K and weatherized coils or kits for enhanced environmental protection. The valve incorporates Sun's floating style construction to reduce internal part binding due to excessive installation torque or machining variations. With a capacity of 8 gpm (30 L/min) and a maximum operating pressure of 5000 psi (350 bar), this model offers a typical response time of 50 ms and supports a switching frequency of up to 15,000 cycles per hour.