SUN HYDRAULICS
DNDCXHN624N

***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 DNDCXHN624N (DNDCXHN624N) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed to be spring-centered to the neutral position. This valve facilitates fluid flow from port 3 P to port 2 A and from port 4 B to port 1 T when coil A is energized. Conversely, energizing coil B redirects flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is rated for fatigue service up to a maximum of 5000 psi (350 bar), ensuring robust performance under high-pressure conditions. Notably, this valve does not require any minimum hydraulic pressure for operation, making it ideal for diverse applications. It features a wet armature design where the working fluid surrounds the armature, which can impact performance if the coil remains energized for extended periods\u2014particularly with fluids like water-glycol mixtures that degrade over time at elevated temperatures. The DNDCXHN624N offers versatile coil termination and voltage options, including configurations with surge protection. Its unique magnetic design enhances efficiency by maximizing spool actuating force per watt consumed, ensuring reliable valve shifting. The interchangeable coils are compatible with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Additionally, various coil connector options provide ratings up to IP69K for enhanced environmental protection. The cartridge incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations in cavity/cartridge setups. It has a capacity of up to 5 gpm (20 L/min) and demonstrates a typical response time of around 50 ms. With a switching frequency of up to 15,000 cycles per hour and minimal leakage at maximum operating pressures, this valve is suitable for high-frequency applications requiring precision control in hydraulic systems.