SUN HYDRAULICS
DNDCXTN512

***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 DNDCXTN512 (DNDCXTN512) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for efficient and reliable hydraulic control. It is spring-centered to the neutral position, ensuring consistent performance. When coil A is energized, hydraulic flow moves 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. This valve is engineered for high-pressure applications with a fatigue rating of up to 5000 psi (350 bar) and does not require a minimum hydraulic pressure for operation. The DNDCXTN512 features a wet armature design that allows the working fluid to surround the armature, which can be advantageous in managing heat generated by prolonged coil energization. The valve's construction incorporates the Sun floating style mechanism, minimizing internal binding risks due to excessive torque or machining variations. It supports various coil termination and voltage options with surge protection capabilities and offers interchangeable coils compatible with other Sun Series 1 products. This spool valve has a capacity of up to 5 gpm (20 L/min) and exhibits a typical response time of approximately 50 ms. It maintains maximum leakage at minimal levels under specified conditions and can handle switching frequencies up to 15,000 cycles per hour. The solenoid's magnetic design ensures high efficiency with substantial spool actuating force per watt expended. For optimal performance in systems using phosphate ester fluids, cartridges with EPDM seals are recommended; however, these seals are susceptible to damage when exposed to petroleum-based fluids or lubricants. The DNDCXTN512 provides robust functionality in differential flow circuits by directing higher return flow through specific ports while offering enhanced environmental protection through additional weatherized coils and kits available for comprehensive coverage.