SUN HYDRAULICS
DNDCXBN214

***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 DNDCXBN214 (DNDCXBN214) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for precision fluid control. This valve is engineered to be spring-centered to a neutral position, allowing for versatile flow management. When coil A is energized, the fluid flows from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B redirects the flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is built to withstand fatigue at a service pressure of up to 5000 psi (350 bar), ensuring durability in demanding applications. This valve operates without the need for minimum hydraulic pressure, making it suitable for various systems including those with differential flow circuits where higher return flows should be directed through port 2 A to port 1 T. Its wet armature design means that the working fluid surrounds the armature and absorbs heat generated by the coil, which can influence performance over prolonged usage periods. Notably, fluids like water-glycol mixtures may degrade under these conditions. The DNDCXBN214 offers multiple coil termination and voltage options with optional surge protection for enhanced adaptability. The solenoid's magnetic design provides high efficiency by delivering significant spool actuating force per watt expended, ensuring reliable valve operation. Coils are interchangeable with other Sun Series 1 solenoid products and can be installed in either direction on the tube. For environmental resilience, weatherized coils and kits are available with connector options rated up to IP69K. This cartridge incorporates Sun's floating style construction to minimize binding risks due to excessive installation torque or machining variations within cavity-cartridge interfaces. It features a capacity of up to 5 gpm (20 L/min) with a typical response time of about 50 ms and supports a maximum switching frequency of up to 15,000 cycles per hour.