SUN HYDRAULICS
DMDAXNN4E12V

***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 DMDAXNN4E12V (DMDAXNN4E12V) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is engineered to operate efficiently with a maximum operating pressure of 5000 psi (350 bar) and a capacity of 12 gpm (45 L/min). Its quick response time of approximately 50 ms and maximum switching frequency of 15,000 cycles per hour make it suitable for systems requiring fast and frequent operation. The valve features a unique closed transition between positions B and R, enhancing performance by ensuring faster and more consistent response times, particularly in pilot control applications where capacity is not the primary concern. It includes EPDM seals suitable for phosphate ester fluids but should avoid exposure to petroleum-based fluids that could damage these seals. A notable design aspect of the DMDAXNN4E12V is its wet armature setup, where the working fluid surrounds the armature. This design consideration is crucial for long operation periods as it impacts fluid integrity due to heat exposure. The valve also benefits from Sun Hydraulics' floating style construction which minimizes internal part binding caused by installation torque or machining variations. This model supports manual override with a detent mechanism designed for temporary actuation only, boasting a mechanical life expectancy of around 7,000 cycles. Additionally, it offers interchangeable coils with other Sun Series 1 solenoid products which can be mounted in either direction on the tube, providing flexibility in system design and maintenance.