SUN HYDRAULICS
DMDAXNN648

***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 DMDAXNN648 (DMDAXNN648) is a solenoid-operated, 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is built to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of up to 12 gpm (45 L/min). The valve features a wet armature design which means the working fluid surrounds the armature, potentially affecting fluid properties if the coil remains energized for extended periods. The DMDAXNN648 is particularly noted for its robust construction with the solenoid tube assembly being fatigue rated for demanding applications. It offers closed transitions between spool positions B and R, enhancing performance by ensuring faster and more consistent response times at the cost of lower flow capacity. This makes it ideal for use as pilot controls where high capacity is not a critical factor. This model incorporates Sun's floating style construction to minimize internal parts misalignment that could arise from excessive installation torque or cavity-cartridge machining variations. Its manual override feature, equipped with either D or L control options, supports temporary actuation with a mechanical life expectancy of around 7,000 cycles. For compatibility with various hydraulic fluids, cartridges configured with EPDM seals are specifically designed for systems using phosphate ester fluids; however, these seals are susceptible to damage if exposed to petroleum-based fluids. Additionally, the valve's coils are interchangeable with other Sun Series 1 solenoid products and can be installed in either direction on the tube. With its quick response time typically around 50 ms and minimal maximum valve leakage at high pressures (5 in\u00b3/min at 3000 psi), the DMDAXNN648 is engineered for precision and reliability in complex hydraulic setups requiring meticulous control.