SUN HYDRAULICS
DMDALNV712N

***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 DMDALNV712N (DMDALNV712N) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed to be fatigue rated for demanding 5000 psi (350 bar) service environments. The valve features closed transitions between Spools B and R, enhancing performance by ensuring faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. The DMDALNV712N operates without requiring a minimum hydraulic pressure, making it versatile for various applications. It includes manual override options with the D or L control having a detent mechanism intended for temporary actuation; these controls are designed to withstand approximately 7,000 cycles of mechanical life. Furthermore, the valve is equipped with EPDM seals specifically for use with phosphate ester fluids; however, these seals must avoid contact with petroleum-based substances to prevent damage. A notable design feature of the DMDALNV712N is its wet armature setup where the working fluid surrounds the armature. This design consideration is crucial as prolonged energization of the coil can lead to higher fluid temperatures which might degrade certain types of hydraulic fluids over time. Additionally, this model boasts interchangeable coils compatible with other Sun Series 1 solenoid products and features Sun's floating style construction which minimizes internal parts binding due to installation variances or machining discrepancies. This cartridge valve supports up to 12 gpm (45 L/min) capacity and offers rapid response times typically around 50 ms. It also maintains robust performance under high switching frequencies up to 15,000 cycles per hour and has been engineered to ensure minimal leakage at maximum operating pressures. The manual override components are user-friendly requiring minimal force and providing precise control through a short stroke length. Overall, the DMDALNV712N is an efficient solution tailored for reliable operation in sophisticated hydraulic systems.