SUN HYDRAULICS
DMDAMBN228

***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 DMDAMBN228 (DMDAMBN228) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for versatile hydraulic applications. This direct-acting, balanced spool directional valve ensures reliable control with its fatigue-rated solenoid tube assembly for up to 5000 psi (350 bar) service. It features closed transitions between Spools 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 DMDAMBN228 operates without requiring a minimum hydraulic pressure, making it exceptionally efficient in various system conditions. For manual override scenarios, the valve includes a detent mechanism designed for temporary actuation with an expected mechanical life of approximately 7,000 cycles. Additionally, this model can be configured with EPDM seals suitable for systems using phosphate ester fluids; however, exposure to petroleum-based substances should be avoided to prevent seal damage. This valve incorporates a wet armature design which exposes the working fluid to heat generated by the coil\u2014important to consider if the coil remains energized over extended periods. The interchangeable coils compatible with other Sun Series 1 solenoid products add flexibility in maintenance and setup. Furthermore, its floating style construction minimizes internal parts binding due to installation torque or machining variations of cavity/cartridge. Key specifications include a flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, and maximum operating pressure of 5000 psi (350 bar). The DMDAMBN228 also supports switching frequencies up to 15,000 cycles per hour and requires minimal manual override force. This robust yet compact valve is essential for efficient hydraulic system management across various applications.