SUN HYDRAULICS
DNDYMXN299

***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 DNDYMXN299 (DNDYMXN299) is a solenoid-operated, 6-way, 2-position cartridge valve designed for selecting between two separate hydraulic circuits. In its de-energized state, the valve connects ports P and T to the first circuit, while energizing the solenoid shifts the connection to a second circuit. Engineered for high performance, this valve's solenoid tube assembly is rated for fatigue at pressures up to 5000 psi (350 bar). The direct-acting mechanism of the valve requires no minimum hydraulic pressure to operate, making it versatile for various applications. For manual operation, models equipped with D or L controls feature a detent mechanism intended for temporary actuation with an estimated mechanical life of about 7,000 cycles. The DNDYMXN299 offers multiple manual override options; however, these are not compatible with weatherized coils. Utilizing a wet armature design ensures that the working fluid surrounds the armature and cools it during extended energization periods. This design consideration is crucial when using fluids like water-glycol mixtures that may degrade at higher temperatures. The solenoid's magnetic design enhances efficiency by maximizing spool actuating force per watt consumed, ensuring reliable shifting. This cartridge valve supports various coil termination and voltage options with surge protection availability. Coils are interchangeable within Sun Series 1 products and can be mounted in either direction on the tube. With coil connector options rated up to IP69K, additional weatherized kits are available for enhanced environmental protection. The valve incorporates Sun\u2019s floating style construction to reduce internal binding risks due to installation torque or machining variations in cavity/cartridge interfaces. Key specifications include a capacity of 5 gpm (20 L/min), typical response time of 50 ms, switching frequency up to 15,000 cycles/hour, and maximum leakage of 5 in\u00b3/min at 3000 psi (80 cc/min at 210 bar). The model weighs approximately .60 lb (.30 kg) and features Viton seal kits available for both cartridge and coil components.