SUN HYDRAULICS
DMDAMBN297

***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 DMDAMBN297 (DMDAMBN297) is a high-performance solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of up to 12 gpm (45 L/min). Notably, it features spools B and R which are closed in the transition between their two positions, enhancing performance by ensuring faster and more consistent response times, especially suitable for pilot control applications where capacity is less critical. This model is equipped with an interchangeable solenoid tube assembly that is fatigue rated for demanding applications. The wet armature design utilized in this valve means that the working fluid surrounds the armature, which can be beneficial or detrimental depending on the duration the coil is energized and the type of fluid used. Special attention should be given to fluids like water-glycol mixtures which may degrade under prolonged exposure to heat. For manual override operations, this valve includes a detent mechanism designed for temporary actuation with a mechanical life expectancy of around 7,000 cycles. It also incorporates Sun's floating style construction which minimizes potential internal binding due to excessive installation torque or cavity/cartridge machining variations. The DMDAMBN297 uses EPDM seals suitable for systems employing phosphate ester fluids; however, these seals are vulnerable to damage when exposed to petroleum-based fluids. Additionally, its robust design allows for manual override with minimal force required and supports a high switching frequency of up to 15,000 cycles per hour. This makes the DMDAMBN297 an ideal choice for various hydraulic applications requiring reliable directional control and rapid response times.