SUN HYDRAULICS
DMDAXNN748

***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 DMDAXNN748 (DMDAXNN748) is a solenoid-operated 3-way, 2-position cartridge valve that excels in applications requiring a direct-acting, balanced spool directional control. Designed for high-performance and reliability, this valve operates without the need for minimum hydraulic pressure, making it highly effective in various operational environments. The DMDAXNN748 features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), ensuring durability under demanding conditions. This model is particularly noted for its closed transition spools (B and R), which do not allow flow between positions, thus providing faster and more consistent response times ideal for pilot control applications where capacity is less critical. The valve incorporates a wet armature design; the working fluid directly cools the armature but requires consideration of fluid characteristics due to potential heat-related degradation over extended periods. With a maximum flow capacity of 12 gpm (45 L/min) and typical response times of 50 ms, the DMDAXNN748 offers efficient operation with minimal delay. It supports manual override options with a detent mechanism designed for temporary actuation, suitable for manual interventions during automated processes. Additionally, the valve is engineered with Sun's floating style construction to reduce risks associated with internal part binding due to installation variances. This valve is compatible with EPDM seals intended for systems using phosphate ester fluids; however, exposure to petroleum-based substances should be avoided to prevent seal damage. Interchangeable coils from other Sun Series 1 products offer flexibility in maintenance and replacement procedures, enhancing this model's utility in complex hydraulic systems.