SUN HYDRAULICS
DMDAXPN211

***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 DMDAXPN211 (DMDAXPN211) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for precision control in hydraulic systems. This direct-acting, balanced spool directional valve features a solenoid tube assembly that is fatigue rated for demanding applications up to 5000 psi (350 bar). The valve achieves a balance between performance and capacity with its closed transition spools B and R, enhancing response times especially in pilot control applications where capacity is less critical. The DMDAXPN211 operates without requiring a minimum hydraulic pressure, making it versatile for various installation environments. For manual override situations, the model equipped with D or L control includes a detent mechanism designed for temporary actuation, supporting mechanical life expectancy of about 7,000 cycles. Specific configurations of this valve use EPDM seals suitable for phosphate ester fluids; however, these are sensitive to petroleum-based substances which can degrade the seals. This model also incorporates a wet armature design allowing the working fluid to cool the armature, although prolonged energization could lead to fluid breakdown in certain conditions like with water-glycol mixtures. Interchangeability of coils with other Sun Series 1 solenoid products adds to the flexibility and ease of use of this valve. Additionally, it features Sun's floating style construction which minimizes internal part binding due to installation torque or machining variations. Key specifications include a flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, and maximum operating pressure capability of 5000 psi (350 bar). The valve also supports switching frequencies up to 15,000 cycles per hour and has manual override requirements detailed for operational integrity under varying pressures. This robust design ensures reliable performance in critical hydraulic control applications.