SUN HYDRAULICS
DMDATNV728

***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 DMDATNV728 (DMDATNV728) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is specifically designed for robust and efficient hydraulic system operations. It features a fatigue rating of 5000 psi (350 bar), making it suitable for high-pressure applications. The unique characteristic of this model is the closed transition between Spools B and R, which enhances performance by ensuring faster and more consistent response times, especially beneficial in pilot control applications where capacity is less critical. The DMDATNV728 requires no minimum hydraulic pressure to operate and incorporates a wet armature design; the working fluid surrounds the armature which can be significant in scenarios where the coil remains energized over extended periods. Possible fluid degradation, such as with water-glycol mixtures that may form varnishes at elevated temperatures, should be considered when using this valve. This model also supports interchangeable coils with other Sun Series 1 solenoid products and can be mounted on the tube in either direction to accommodate different installation requirements. For enhanced durability and maintenance ease, cartridges configured with EPDM seals are tailored for systems utilizing phosphate ester fluids; however, these seals must avoid exposure to petroleum-based fluids to prevent damage. Additionally, the DMDATNV728 boasts Sun\u2019s floating style construction that minimizes internal parts binding due to excessive installation torque or cavity-cartridge machining variations. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, and maximum operating pressure of 5000 psi (350 bar). The valve also features manual override options with a life expectancy of approximately 7,000 cycles for temporary actuations. This makes the DMDATNV728 an adaptable solution for various high-pressure hydraulic system applications requiring reliable directional control and rapid response times.