SUN HYDRAULICS
DNDCXHE224

***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 DNDCXHE224 (DNDCXHE224) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for precision control in hydraulic systems. This valve is spring-centered to the neutral position and offers versatile flow configurations depending on coil activation. When coil A is energized, fluid flows 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 solenoid tube assembly is robustly built for fatigue-rated service up to 5000 psi (350 bar), ensuring durability under high-pressure conditions. This valve operates without requiring a minimum hydraulic pressure, making it suitable for various applications where direct actuation is needed. In differential flow circuits, directing the higher return flow through port 2 A to port 1 T optimizes performance. It features EPDM seals compatible with phosphate ester fluids but should avoid petroleum-based substances that could cause damage. The wet armature design allows the working fluid to surround the armature, which helps manage heat dissipation but requires caution with fluids like water-glycol mixtures that can degrade over time. The DNDCXHE224 offers multiple coil termination and voltage options, including versions with surge protection for enhanced reliability. Its high-efficiency solenoid design ensures effective spool actuation with minimal energy expenditure. Coils are interchangeable with other Sun Series 1 products and can be mounted in either direction on the tube. The valve's construction minimizes internal binding risks due to installation torque or machining variations. With a capacity of up to 5 gpm (20 L/min) and a typical response time of approximately 50 ms, this valve supports high-frequency switching up to 15,000 cycles per hour, making it ideal for demanding applications requiring rapid response and consistent performance.