SUN HYDRAULICS
DMDAXRN812N

***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 DMDAXRN812N (DMDAXRN812N) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is specifically designed to handle a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of up to 12 gpm (45 L/min). It features a robust design with a solenoid tube assembly that is fatigue rated for demanding applications. The valve incorporates closed transitions between spools B and R, enhancing performance by providing faster and more consistent response times, especially suitable for pilot control applications where capacity is less critical. This model employs a wet armature design allowing the working fluid to surround the armature, which helps in managing heat generated by the coil but requires consideration regarding fluid compatibility. It is vital to note that cartridges with EPDM seals should only be used with phosphate ester fluids as exposure to petroleum-based fluids can damage these seals. The DMDAXRN812N offers versatility through its interchangeable coils with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. It also features Sun's floating style construction which minimizes internal parts binding due to installation torque or machining variations of cavity/cartridge. This model includes options for manual override with a detent mechanism designed for temporary actuation, supporting approximately 7,000 cycles mechanically. Additionally, this valve ensures minimal leakage at high pressures and has been engineered for frequent switching applications up to 15,000 cycles per hour. The manual override requires minimal force and has a short stroke length ensuring ease of operation under various pressure settings. This compact yet durable valve weighs only 0.60 lb (0.30 kg) and adheres strictly to quality specifications ensuring reliable performance in various hydraulic systems.