SUN HYDRAULICS
DMDAXNN298

***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 DMDAXNN298 (DMDAXNN298) is a solenoid-operated 3-way, 2-position cartridge valve designed for precise control in hydraulic systems. It features a direct-acting, balanced spool directional valve configuration that ensures reliable operation without the need for minimum hydraulic pressure. The unit is engineered with a robust solenoid tube assembly that is fatigue rated for up to 5000 psi (350 bar), making it suitable for high-pressure applications. This model incorporates closed transitions between spool positions B and R, enhancing performance by providing faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. The valve also includes manual override options with a detent mechanism designed for temporary actuation, supporting approximately 7,000 cycles. Constructed with EPDM seals, the DMDAXNN298 is optimized for use with phosphate ester fluids; however, it should not be used with petroleum-based fluids as these can damage the seals. Additionally, its wet armature design allows the working fluid to surround the armature which helps in heat dissipation but requires careful consideration of fluid type to avoid breakdown and varnish formation. The interchangeable coils of this model are compatible with other Sun Series 1 solenoid products and can be mounted in either direction to suit various installation requirements. Furthermore, Sun Hydraulics' floating style construction minimizes internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), rapid response times typical at 50 ms, and an operational lifespan designed to handle switching frequencies up to 15,000 cycles per hour. This model's compact design features a manual override force requirement of only 5 lbs at 1000 psi for port 1 and incorporates a straightforward .10 inch stroke for manual actuation.