SUN HYDRAULICS
DMDAMNN528

***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 DMDAMNN528 (DMDAMNN528) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic control. This direct-acting, balanced spool directional valve operates without minimum hydraulic pressure, ensuring reliable performance across a range of applications. It features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), making it suitable for demanding environments. The valve's design incorporates closed transitions between spools B and R, enhancing performance by providing faster and more consistent response times, particularly suited for pilot control applications where capacity is less critical. The DMDAMNN528 model is equipped with manual override options including D, L, and T controls; the detent mechanism in these controls is specifically designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. For compatibility with different fluid types, cartridges configured with EPDM seals are recommended for systems using phosphate ester fluids; however, these should not be exposed to petroleum-based fluids as it could damage the seals. The wet armature design of the valve means that the working fluid surrounds the armature which could affect fluid integrity if exposed to heat for prolonged periods. Additionally, this model features interchangeable coils with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. It also incorporates Sun's floating style construction which minimizes internal parts binding due to installation torque or cavity/cartridge machining variations. With a maximum operating capacity of 12 gpm (45 L/min) and rapid response times typically around 50 ms, the DMDAMNN528 offers efficient switching capabilities up to 15,000 cycles per hour with minimal leakage. This makes it an excellent choice for sophisticated hydraulic systems requiring precise control and durability.