SUN HYDRAULICS
DNDCXWV212

***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 DNDCXWV212 (DNDCXWV212) 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 reliable 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 routes the flow from port 3 to port 4 and from port 2 to port 1. The valve's solenoid tube assembly is fatigue rated for service pressures up to 5000 psi (350 bar), ensuring durability and longevity under demanding conditions. The DNDCXWV212 operates without requiring a minimum hydraulic pressure, making it versatile for different system configurations. In differential flow circuits, directing the higher return flow through port 2 A to port 1 T optimizes performance. For systems using phosphate ester fluids, cartridges with EPDM seals are recommended; these seals are not compatible with petroleum-based fluids. The valve features a wet armature design where the working fluid surrounds the armature, which can be advantageous or detrimental depending on fluid type and operating conditions. Notably, water-glycol mixtures may degrade over time due to heat exposure. The solenoid's magnetic design enhances efficiency by providing high spool actuating force per watt expended. Various coil termination and voltage options are available, including models with surge protection and IP69K-rated connectors for comprehensive environmental protection. The coils are interchangeable with other Sun Series 1 products and can be mounted in either direction on the tube. Additionally, Sun's floating style construction minimizes internal part binding due to installation torque or machining variations. With a capacity of up to 5 gpm (20 L/min) and typical response times of approximately 50 ms, this valve is suitable for applications requiring rapid switching at frequencies up to 15,000 cycles per hour.