SUN HYDRAULICS
DNDCXBN524

***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 DNDCXBN524 (DNDCXBN524) is a direct acting, solenoid-operated, 4-way, 3-position spool valve that is spring-centered to the neutral position. This valve is designed for applications requiring precise control of hydraulic flow direction. 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, when coil B is energized, the flow shifts from port 3 to port 4 and from port 2 to port 1. It features a fatigue-rated solenoid tube assembly capable of withstanding up to 5000 psi (350 bar), ensuring durability in demanding environments. This model does not require a minimum hydraulic pressure for operation due to its direct actuation mechanism. In differential flow circuits, higher return flows should be routed through port 2 A to port 1 T. The valve utilizes EPDM seals for compatibility with phosphate ester fluids while warning against exposure to petroleum-based substances which could damage the seals. The wet armature design allows working fluid exposure around the armature, which may affect fluid performance over prolonged coil energization periods. Offering a range of coil termination and voltage options\u2014some with surge protection\u2014the DNDCXBN524 ensures versatility in installation configurations. Its high-efficiency solenoid design provides significant spool actuating force per watt expended, promoting reliable shifting performance. Coils are interchangeable within Sun Series 1 products and can be mounted bidirectionally on the tube, with available connector options rated up to IP69K for enhanced environmental protection. The valve's floating style construction minimizes internal binding risks due to excessive torque or machining variations during installation. 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 while maintaining minimal leakage at specified conditions.