SUN HYDRAULICS
DMDAXNN728

***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 DMDAXNN728 (DMDAXNN728) is a solenoid-operated 3-way, 2-position cartridge valve that features a direct-acting, balanced spool design for precise control in hydraulic systems. With its robust construction, the solenoid tube assembly is fatigue rated for up to 5000 psi (350 bar), making it suitable for high-pressure applications. The valve offers closed transitions between its two positions, optimizing performance by ensuring faster and more consistent response times, particularly beneficial when used as pilot controls. This model is designed to be direct-actuated and does not require any minimum hydraulic pressure to operate, which enhances its reliability in various operational conditions. Additionally, the DMDAXNN728 incorporates manual override options with detent mechanisms (available on models with D or L control), primarily intended for temporary actuation; these manual controls are designed to withstand approximately 7,000 cycles. Equipped with EPDM seals, this cartridge valve is specifically configured for use with phosphate ester fluids; however, it should not be exposed to petroleum-based fluids as they can degrade the seals. The wet armature design of the valve means that the working fluid surrounds the armature which might be susceptible to heat during prolonged coil energization \u2014 an important consideration in system design. Compatibility with other Sun Series 1 solenoid products allows interchangeable coils that can be mounted in either direction on the tube. This model also benefits from Sun\u2019s floating style construction which minimizes internal part binding due to installation torque or machining variations of cavity/cartridge. With a maximum flow capacity of 12 gpm (45 L/min) and swift response times typically around 50 ms, the DMDAXNN728 provides efficient switching capabilities up to 15,000 cycles per hour while maintaining tight leakage control at high pressures.