SUN HYDRAULICS
DMDADBV728

***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 DMDADBV728 (DMDADBV728) is a solenoid-operated 3-way, 2-position cartridge valve that excels in direct-acting, balanced spool directional control applications. This model is specifically designed to handle a maximum operating pressure of 5000 psi (350 bar), making it suitable for high-pressure environments. The valve features spools B and R which are closed during the transition between positions to enhance performance by providing faster and more consistent response times, especially useful in pilot control applications where capacity is less of a concern. The DMDADBV728 operates without needing a minimum hydraulic pressure, thanks to its direct actuation design. It includes an optional manual override with a detent mechanism intended for temporary actuation, boasting a mechanical life expectancy of around 7,000 cycles. This model can accommodate EPDM seals for systems utilizing phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it could damage the seals. Additionally, the valve employs a wet armature design where the working fluid surrounds the armature. This aspect needs careful consideration as prolonged energization of the coil can lead to fluid breakdown in certain conditions like with water-glycol mixtures. The interchangeable coils with Sun Series 1 solenoid products add versatility and ease of maintenance. With features like Sun's floating style construction, the DMDADBV728 minimizes internal parts binding due to installation torque or machining variations of cavity/cartridge. The valve supports up to 12 gpm (45 L/min) flow capacity and has rapid response times typically around 50 ms. It also allows for high switching frequency up to 15,000 cycles per hour and integrates seamlessly into various hydraulic systems requiring robust and reliable directional control solutions.