SUN HYDRAULICS
DMDALNN4E12V

***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 DMDALNN4E12V (DMDALNN4E12V) is a solenoid-operated 3-way, 2-position cartridge valve that functions as a direct-acting, balanced spool directional valve. Designed for high-performance applications, this model features a solenoid tube assembly that is fatigue rated for 5000 psi (350 bar) service, ensuring reliability under demanding conditions. The valve operates with no minimum hydraulic pressure required, making it highly versatile in various hydraulic systems. The DMDALNN4E12V is equipped with closed transitions between Spools B and R, which enhances performance by providing faster and more consistent response times especially when used as pilot controls. This feature, however, does come at the cost of reduced capacity. The valve's manual override includes a detent mechanism designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. This model uses EPDM seals suitable for systems utilizing phosphate ester fluids; however, these seals are vulnerable to damage if exposed to petroleum-based fluids. It features a wet armature design where the working fluid surrounds the armature which could be susceptible to heat during prolonged energization affecting fluid integrity over time. Furthermore, the DMDALNN4E12V offers interchangeable coils with other Sun Series 1 solenoid products and incorporates Sun's floating style construction to minimize internal parts binding due to installation variances or machining discrepancies. Key specifications include a flow capacity of 12 gpm (45 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 50 ms, and maximum valve leakage at 3000 psi set at approximately 5 in\u00b3/min. Additionally, it supports switching frequencies up to 15,000 cycles/hr making it suitable for high-cycle applications.