SUN HYDRAULICS
DNDAXXN71299

***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 DNDAXXN71299 (DNDAXXN71299) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This robust valve features a solenoid tube assembly rated for fatigue at 5000 psi (350 bar), ensuring durability and reliability in high-pressure applications. It operates without the need for minimum hydraulic pressure, making it versatile for various settings. The cartridge offers multiple manual override options, though it's essential to note that manual overrides are incompatible with weatherized coils. Models with D or L control include a detent mechanism intended for temporary actuation, boasting a mechanical life expectancy of approximately 7,000 cycles. The valve is equipped with EPDM seals suitable for systems using phosphate ester fluids, but these seals are not compatible with petroleum-based fluids. Its wet armature design allows the working fluid to surround and cool the armature; however, prolonged coil energization can lead to fluid breakdown in certain mixtures like water-glycol. The solenoid's efficient magnetic design ensures high spool actuating force per watt used, resulting in reliable valve operation. Various coil termination and voltage options are available to accommodate different needs, and all coils are interchangeable within Sun Series 1 products. With coil connector options rated up to IP69K, this valve offers enhanced environmental protection when paired with additional weatherized coils and kits. The Sun floating style construction minimizes internal binding risks due to excessive installation torque or cavity machining variations. This cartridge fits into a T-31A cavity and supports a flow capacity of up to 10 gpm (40 L/min). It features rapid response times of approximately 50 ms and can handle switching frequencies up to 15,000 cycles per hour. With a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), this valve is engineered for efficiency and longevity in demanding hydraulic systems.