SUN HYDRAULICS
DMDALNV748

***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 DMDALNV748 (DMDALNV748) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust service with a fatigue rating of 5000 psi (350 bar). It features a closed transition between spool positions B and R, enhancing performance by providing faster and more consistent response times when used as pilot controls. The valve operates without the need for a minimum hydraulic pressure, making it versatile in various applications. Equipped with either D or L control options, the manual override in this model includes a detent mechanism intended for temporary actuation, with a mechanical life expectancy of around 7,000 cycles. The DMDALNV748 also incorporates EPDM seals suitable for systems using phosphate ester fluids; however, these seals are susceptible to damage if exposed to petroleum-based substances. The design includes a wet armature setup where the working fluid surrounds the armature which can be critical if the coil remains energized over extended periods due to potential breakdowns in certain fluids like water-glycol mixtures. Additionally, coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. This model also benefits from Sun's floating style construction which minimizes internal parts binding caused by excessive installation torque or variations in cavity/cartridge machining. Key specifications include a capacity of 12 gpm (45 L/min), typical response time of 50 ms, and maximum operating pressure of 5000 psi (350 bar). The DMDALNV748 ensures reliable operation under various conditions with its robust construction and thoughtful engineering.