SUN HYDRAULICS
DNDCXBE812N

***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 DNDCXBE812N (Material Number: DNDCXBE812N) is a direct acting, solenoid-operated, 4-way, 3-position spool valve that is spring-centered to the neutral position. This versatile component is designed for efficient hydraulic flow control in various applications. When coil A is energized, it directs flow 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 valve features a robust solenoid tube assembly rated for fatigue at pressures up to 5000 psi (350 bar), ensuring durability and reliable performance under demanding conditions. It requires no minimum hydraulic pressure for operation due to its direct actuation design. This valve is particularly suitable for differential flow circuits, where higher return flows should be routed through port 2 A to port 1 T. The use of EPDM seals makes it compatible with systems utilizing phosphate ester fluids, although exposure to petroleum-based substances can damage these seals. The wet armature design allows the working fluid to cool the armature but may lead to fluid breakdown in certain mixtures if the coil remains energized for extended periods. The solenoid's unique magnetic design provides high efficiency with substantial spool actuating force per watt expended, ensuring dependable valve shifting. Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Additionally, various coil termination and voltage options are available, some offering surge protection and environmental ratings up to IP69K. Incorporating Sun's floating style construction helps minimize internal binding due to installation torque or machining variations. The valve supports a maximum capacity of 5 gpm (20 L/min) with a typical response time of approximately 50 ms and can handle switching frequencies up to 15,000 cycles/hr.