SUN HYDRAULICS
DMDAXPN514

***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 DMDAXPN514 (DMDAXPN514) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust service with a fatigue rating of 5000 psi (350 bar). It 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 valve operates without requiring a minimum hydraulic pressure, making it versatile in various hydraulic systems. The DMDAXPN514 model incorporates a wet armature design, allowing the working fluid to surround the armature which could be significant when the coil remains energized over extended periods. Users should note that some fluids like water-glycol mixtures might degrade under prolonged exposure to heat, potentially affecting valve performance. The model is equipped with EPDM seals intended specifically for use with phosphate ester fluids; these seals are prone to damage if exposed to petroleum-based products. For ease of maintenance and adaptability, the coils of this valve are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. This valve also benefits from Sun's floating style construction which minimizes internal parts binding due to installation torque or variations in cavity/cartridge machining. The DMDAXPN514 can handle a flow capacity up to 12 gpm (45 L/min) and offers quick response times typically around 50 ms. It supports a maximum operating pressure of 5000 psi (350 bar) and has switching frequency capabilities up to 15,000 cycles per hour. Manual overrides are possible but are designed for temporary actuation with an expected mechanical life of approximately 7,000 cycles. This model is an essential component for systems requiring reliable directional control in high-pressure applications.