SUN HYDRAULICS
DMDAMPN528

***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 DMDAMPN528 (DMDAMPN528) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control in various applications. This direct-acting, balanced spool directional valve is characterized by its robust design, including a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar). The valve features closed transitions between Spools B and R, optimizing performance by ensuring faster and more consistent response times particularly suited for pilot control applications where capacity is less critical. The DMDAMPN528 operates without requiring a minimum hydraulic pressure, enhancing its versatility in different system configurations. It includes manual override options with the D or L control featuring a detent mechanism intended for temporary actuation. The mechanical life expectancy of these manual controls is about 7,000 cycles. Notably, cartridges with EPDM seals are specifically designed for use with phosphate ester fluids; however, they must not be exposed to petroleum-based fluids as this can damage the seals. This model also employs a wet armature design where the working fluid surrounds the armature. This aspect is crucial when considering fluid selection and operating conditions since some fluids may degrade under prolonged exposure to heat from an energized coil. The valve\u2019s construction incorporates Sun\u2019s floating style which minimizes internal parts binding due to installation torque or machining variations. Additional technical specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response times of 50 ms, and maximum leakage at 5 in\u00b3/min at 3000 psi. Its switching frequency can reach up to 15,000 cycles per hour, making it suitable for applications requiring frequent actuations. Installation requires specific torque settings (30 - 35 lbf\u00b7ft), and the overall model weight is relatively light at 0.60 lbs (0.30 kg), facilitating easier handling and integration into system assemblies.