SUN HYDRAULICS
DNDCXHV828

***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 DNDCXHV828 (DNDCXHV828) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for precision fluid control applications. This valve is spring-centered to maintain a neutral position when not energized. It features a robust solenoid tube assembly rated for fatigue at 5000 psi (350 bar), ensuring reliable performance in demanding environments. The DNDCXHV828 operates without the need for minimum hydraulic pressure, making it versatile for various applications. When coil A is activated, the flow transitions from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B directs flow from port 3 to port 4 and from port 2 to port 1. This valve incorporates a wet armature design where the working fluid surrounds the armature, aiding in heat dissipation generated by the coil during operation. However, care must be taken with certain fluids like water-glycol mixtures that can degrade under prolonged exposure to heat. The DNDCXHV828 offers various coil termination and voltage options with or without surge protection, enhancing its adaptability across different systems. The high-efficiency solenoid design provides substantial spool actuating force per watt of energy used, ensuring dependable valve shifting. Coils are interchangeable with other Sun Series 1 solenoid products, offering flexibility in installation direction and connector options rated up to IP69K for environmental protection. The valve's floating style construction minimizes internal part binding risks due to excessive installation torque or cavity machining variations. It fits into a T-31A cavity and handles capacities up to 5 gpm (20 L/min) with maximum operating pressure of 5000 psi (350 bar). With a typical response time of 50 ms and switching frequency up to 15,000 cycles per hour, this valve is engineered for high-performance tasks requiring precise fluid management.