SUN HYDRAULICS
DMDALNN224N

***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 DMDALNN224N (DMDALNN224N) is a solenoid-operated, 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is notable for its robust construction and reliability in demanding applications. It operates with a maximum pressure of 5000 psi (350 bar) and has a flow capacity of up to 12 gpm (45 L/min). The valve features a fatigue-rated solenoid tube assembly suitable for continuous service. The DMDALNN224N model is equipped with closed transitions between spool positions B and R, enhancing performance by ensuring faster and more consistent response times, especially useful in pilot control applications where capacity is less critical. This design choice minimizes leakage and maintains efficiency under varying operational conditions. A distinctive feature of this model is its wet armature design; the working fluid surrounds the armature, which can influence fluid properties if the coil remains energized over extended periods. Special attention should be given to fluid selection, particularly avoiding water-glycol mixtures that may degrade at higher temperatures. For manual override operations, the valve includes a detent mechanism in models equipped with D or L control options, designed to support temporary actuation with a mechanical life expectancy of around 7,000 cycles. Additionally, it utilizes EPDM seals compatible with phosphate ester fluids but not with petroleum-based substances which could cause seal damage. Interchangeability of coils with other Sun Series 1 solenoid products adds versatility to this component, allowing for straightforward maintenance and replacement processes. The valve also incorporates Sun\u2019s floating style construction which helps prevent internal parts from binding due to excessive installation torque or variations in cavity/cartridge machining. Overall, the Sun Hydraulics DMDALNN224N valve provides reliable performance for hydraulic systems requiring precise control and durability under high-pressure conditions.