SUN HYDRAULICS
DMDALNN211

***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 DMDALNN211 (DMDALNN211) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for rigorous industrial applications. This direct-acting, balanced spool directional valve ensures reliable control in hydraulic systems. It features a fatigue-rated solenoid tube assembly suitable for pressures up to 5000 psi (350 bar), making it ideal for demanding environments. The spools B and R maintain a closed transition between two positions, optimizing performance by providing faster and more consistent response times, particularly useful in pilot control applications where capacity is less critical. The DMDALNN211 requires no minimum hydraulic pressure to operate and incorporates a wet armature design that exposes the working fluid to the heat generated by the coil. This aspect is crucial when using fluids like water-glycol mixtures that may degrade under prolonged exposure to heat. The valve's manual override is equipped with a detent mechanism designed for temporary actuation, with an expected mechanical life of around 7,000 cycles. This model uses EPDM seals recommended for systems containing phosphate ester fluids; however, these seals must avoid contact with petroleum-based fluids which can cause damage. Furthermore, the interchangeable coils compatible with other Sun Series 1 solenoid products add versatility to this component. The construction of the valve minimizes internal parts binding due to installation torque or cavity/cartridge machining variations. Key specifications include a flow capacity of 12 gpm (45 L/min), a maximum operating pressure of 5000 psi (350 bar), and typical response times of around 50 ms. The valve's design also supports a high switching frequency up to 15,000 cycles/hr, ensuring robust performance in various operational settings.