SUN HYDRAULICS
DMDAXBN812N

***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 DMDAXBN812N (DMDAXBN812N) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is specifically designed for robust applications requiring precise control. The valve operates with no minimum hydraulic pressure needed, enhancing its versatility in various systems. It features a fatigue-rated solenoid tube assembly capable of handling services up to 5000 psi (350 bar). This model is engineered with closed transitions between Spools B and R, optimizing performance by ensuring faster and more consistent response times particularly useful in pilot control applications where flow capacity is less critical. The manual override options (D, L, and T controls) provide temporary actuation with a mechanical life expectancy of around 7,000 cycles. The wet armature design of the valve allows the working fluid to surround the armature; however, this may lead to fluid breakdown if the coil remains energized for extended periods. The DMDAXBN812N uses EPDM seals suitable for phosphate ester fluids but not for petroleum-based fluids which can damage the seals. Its interchangeable coils are compatible with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Additionally, it incorporates Sun\u2019s floating style construction to prevent internal parts binding due to installation torque or machining variations of cavity/cartridge. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response times of 50 ms, and a maximum operating pressure of 5000 psi (350 bar). This model also supports switching frequencies up to 15000 cycles per hour and has manual override requirements detailed specifically for operational ease under varying pressures. With its compact design weighing just 0.60 lb (0.30 kg), this valve ensures reliable performance in demanding environments.