SUN HYDRAULICS
DNDCXTV748

***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 DNDCXTV748 (DNDCXTV748) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for high efficiency and reliable performance in hydraulic systems. This valve is spring-centered to the neutral position, allowing for controlled fluid flow depending on which coil is energized. When coil A is activated, fluid flows 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. The valve operates effectively under a maximum pressure of 5000 psi (350 bar) without requiring any minimum hydraulic pressure for operation. Constructed with a fatigue-rated solenoid tube assembly, this valve ensures durability and longevity in demanding applications. Its wet armature design allows the working fluid to surround the armature, managing heat dissipation when the coil is energized for extended periods. However, caution should be taken with certain fluids like water-glycol mixtures that may degrade at elevated temperatures. The DNDCXTV748 offers versatility with various coil termination and voltage options available, including configurations with surge protection. It features interchangeable coils compatible with other Sun Series 1 solenoid products and can accommodate different installation orientations. The valve's unique magnetic design enhances solenoid efficiency by providing high spool actuating force per watt of power used. With a capacity of up to 5 gpm (20 L/min) and a typical response time of 50 ms, this valve supports high-frequency switching up to 15,000 cycles per hour. The device incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. For optimal performance in specific applications, EPDM seals are recommended for use with phosphate ester fluids while avoiding petroleum-based substances that may damage the seals.