SUN HYDRAULICS
DNCALWN72419

***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 DNCALWN72419 (DNCALWN72419) is a solenoid-operated, 4-way, 2-position cartridge valve designed for precise directional control in hydraulic systems. This direct-acting, balanced spool directional valve features a closed transition between positions, which significantly minimizes oil loss during shifting\u2014an essential attribute for pilot control circuits. The valve's capacity is optimized with port 3 as the inlet and port 1 as the tank; however, reverse flow is not recommended due to potential performance degradation. Rated for a maximum operating pressure of 5000 psi (350 bar), the solenoid tube assembly is fatigue-resistant, ensuring durability under high-pressure conditions. This valve requires no minimum hydraulic pressure for activation and operates with a wet armature design that immerses the armature in working fluid. This design consideration helps manage heat dissipation from the coil but requires attention to fluid compatibility\u2014particularly with water-glycol mixtures that might degrade over time at elevated temperatures. The DNCALWN72419 offers various coil termination and voltage configurations, including options with surge protection and IP69K-rated coil connectors for robust environmental resistance. The high-efficiency solenoid provides substantial spool actuating force per watt expended, facilitating reliable valve shifting. Coils are interchangeable across Sun Series 1 solenoid products and can be mounted bidirectionally on the tube. The floating style construction minimizes potential binding of internal components due to excessive installation torque or machining variations in cavity/cartridge interfaces. With an 8 gpm (30 L/min) capacity and a typical response time of 50 ms, this model supports high-frequency switching up to 15,000 cycles per hour. Manual override capabilities are also included, requiring minimal force and stroke for operation. Overall, the Sun Hydraulics DNCALWN72419 provides robust performance in demanding hydraulic applications where precise control and durability are paramount.