SUN HYDRAULICS
DNCADAV812

***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 DNCADAV812 (DNCADAV812) is a high-performance, solenoid-operated, 4-way, 2-position cartridge valve designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve ensures a closed transition between positions, significantly minimizing oil loss during shifting which is crucial in maintaining efficiency in pilot control circuits. The valve's construction allows for port 3 to be used as the inlet and port 1 as the tank, although it does support reverse flow under certain conditions. With a robust design rated for up to 5000 psi (350 bar), the DNCADAV812 is fatigue rated for demanding applications. It operates without requiring a minimum hydraulic pressure, enhancing its versatility across various hydraulic setups. The valve features EPDM seals specifically for use with phosphate ester fluids; however, these seals are susceptible to damage if exposed to petroleum-based fluids. The wet armature design of the DNCADAV812 helps in heat management around the coil but requires consideration regarding the type of fluid used due to potential breakdown and varnish formation from prolonged exposure to high temperatures. Additionally, this model offers a variety of coil termination and voltage options, including configurations with surge protection. For environments demanding rigorous specifications, the valve provides options for weatherized coils and kits that further protect against environmental factors. Its innovative magnetic design enhances solenoid efficiency, ensuring high spool actuating force per watt expended and reliable valve operation even under high switching frequencies (up to 15,000 cycles per hour). Sun Hydraulics has also incorporated their floating style construction into the DNCADAV812 to reduce risks associated with internal parts binding due to installation torque or variations in cavity/cartridge machining. This attention to detail ensures consistent performance and reliability of the valve in various operational conditions.