SUN HYDRAULICS
DNDCXAN912N

***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 DNDCXAN912N (DNDCXAN912N) is a direct-acting, solenoid-operated, 4-way, 3-position spool valve designed for reliable hydraulic control in demanding applications. This spring-centered valve returns to the neutral position when not energized. When coil A is activated, hydraulic flow moves from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B redirects flow from port 3 to port 4 and from port 2 to port 1. The valve's solenoid tube assembly is fatigue-rated for operations up to 5000 psi (350 bar), ensuring durability under high-pressure conditions. This versatile valve functions without requiring minimum hydraulic pressure, making it suitable for various systems, including differential flow circuits where higher return flows should be routed through specific ports. Its wet armature design allows the working fluid to cool the armature but requires consideration of fluid compatibility due to potential heat exposure. For example, water-glycol mixtures may degrade over time at elevated temperatures. The DNDCXAN912N offers multiple coil termination and voltage options, with surge protection capabilities available. The high-efficiency solenoid design provides significant spool actuating force per watt consumed, enhancing performance reliability. Coils are interchangeable with other Sun Series 1 products and can be mounted in either direction on the tube. Additional weatherized coils and kits provide enhanced environmental protection with connector options rated up to IP69K. Incorporating Sun's floating style construction minimizes internal binding risks due to installation torque or machining variations in the cavity/cartridge interface. With a capacity of up to 5 gpm (20 L/min) and a typical response time of just 50 ms, this valve supports fast switching frequencies of up to 15,000 cycles per hour while maintaining minimal leakage at high pressures.