SUN HYDRAULICS
DMDAXAV748

***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 DMDAXAV748 (DMDAXAV748) is a solenoid-operated 3-way, 2-position cartridge valve that excels in applications requiring precise control and reliable operation under high pressure. This direct-acting, balanced spool directional valve is designed with a fatigue rating for 5000 psi (350 bar) service, ensuring robust performance in demanding environments. The valve features closed transitions between positions B and R, enhancing performance by providing faster and more consistent response times, particularly suitable for pilot controls where capacity is less critical. The DMDAXAV748 operates without needing a minimum hydraulic pressure, making it versatile for various system conditions. It includes options for manual override controls (D, L, T), each designed with a detent mechanism suited for temporary actuation and capable of withstanding around 7,000 cycles. Additionally, models equipped with EPDM seals are specifically intended for systems using phosphate ester fluids; however, they must avoid exposure to petroleum-based substances to prevent seal damage. This valve employs a wet armature design allowing the working fluid to surround the armature which can be a consideration if the coil remains energized over extended periods due to potential breakdown of certain fluids like water-glycol mixtures. Furthermore, its coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The design incorporates Sun\u2019s floating style construction which minimizes internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. Key specifications include a capacity of 12 gpm (45 L/min), maximum operating pressure of 5000 psi (350 bar), typical response time of 50 ms, and maximum valve leakage at 110 SUS (24 cSt) being 5 in\u00b3/min at 3000 psi (80 cc/min at 210 bar). The manual override requires an actuation force of approximately 5 lbs at 1000 psi for port one. This model also has specific installation torque requirements and dimensions ensuring proper fitting and operation within hydraulic systems.