SUN HYDRAULICS
DNDCXBE748

***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 DNDCXBE748 (DNDCXBE748) is a direct-acting, solenoid-operated, 4-way, 3-position spool valve that is spring-centered to the neutral position. This versatile valve provides precise control over hydraulic flow paths based 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, activating coil B redirects flow from port 3 to port 4 and from port 2 to port 1. The valve's solenoid tube assembly is rated for fatigue at pressures up to 5000 psi (350 bar), ensuring robust performance under demanding conditions. The DNDCXBE748 requires no minimum hydraulic pressure for operation due to its direct actuation design, making it suitable for a variety of applications where pressure conditions may vary. In circuits with differential flow, it is recommended that higher return flows are routed through port 2 A to port 1 T for optimal performance. The valve features EPDM seals compatible with systems using phosphate ester fluids; however, these seals are vulnerable to damage if exposed to petroleum-based substances. Designed with a wet armature configuration, the DNDCXBE748 allows working fluid to come into contact with the armature and absorb heat generated by the coil. This aspect should be considered in applications where the coil remains energized over extended periods, as some fluids may degrade under prolonged exposure. The solenoid design ensures high efficiency by delivering substantial spool actuating force per watt consumed. The valve accommodates various coil termination and voltage options, including surge protection capabilities. Coils can be interchanged with other Sun Series 1 solenoid products and installed in either direction on the tube. Connector options provide protection ratings up to IP69K for enhanced environmental resilience. Additionally, this model incorporates Sun's floating style construction technique, reducing risks of internal component binding due to installation torque or machining variations in cavity-cartridge interfaces.