SUN HYDRAULICS
DMDAXRN828

***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 DMDAXRN828 (DMDAXRN828) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve features a fatigue rating of 5000 psi (350 bar) for its solenoid tube assembly, making it suitable for demanding applications. The valve is designed with closed transitions between positions B and R to enhance performance by ensuring faster and more consistent response times, particularly useful in pilot control settings where capacity is less critical. The DMDAXRN828 operates without requiring a minimum hydraulic pressure, facilitating its use in various hydraulic systems. It includes options for manual override controls (D, L, and T), which are intended for temporary actuation with a mechanical life expectancy of about 7,000 cycles. The valve's wet armature design allows the working fluid to surround the armature, which can be critical when the coil remains energized over extended periods as it could affect fluid integrity in certain conditions. This model is compatible with EPDM seals configured for phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Additionally, the interchangeable coils with other Sun Series 1 solenoid products offer flexibility in maintenance and replacement. The construction incorporates Sun\u2019s floating style to minimize internal parts binding due to installation torque or machining variations of the cavity/cartridge. Key specifications include a flow capacity of 12 gpm (45 L/min), typical response times of 50 ms, and maximum operating pressures up to 5000 psi (350 bar). The valve also supports a high switching frequency of up to 15,000 cycles per hour and has been engineered to ensure reliability and durability in various hydraulic applications.