SUN HYDRAULICS
DMDAXNN71219

***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 DMDAXNN71219 (DMDAXNN71219) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve features a fatigue rating suitable for 5000 psi (350 bar) service, ensuring reliable operation under high-pressure conditions. The valve's spools B and R are closed during the transition between the two positions to enhance performance limits at the expense of capacity. This characteristic makes it particularly useful as pilot controls where capacity is less critical but speed and consistency in response are necessary. The DMDAXNN71219 is designed to operate without minimum hydraulic pressure and incorporates a wet armature design where the working fluid surrounds the armature, potentially affecting fluid characteristics if exposed to prolonged heat from an energized coil. It is equipped with EPDM seals suitable for phosphate ester fluids while being incompatible with petroleum-based fluids which can damage these seals. This model supports interchangeable coils with other Sun Series 1 solenoid products and can be mounted in either direction on the tube, providing flexibility in installation. The floating style construction of this valve minimizes internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. With a manual override feature requiring minimal force and offering a mechanical life expectancy of approximately 7,000 cycles, it ensures durability and ease of temporary actuation when necessary. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 12 gpm (45 L/min), typical response time of 50 ms, and maximum switching frequency of 15000 cycles per hour. It also features manual override components that are robustly designed for repeated use without compromise on performance.