SUN HYDRAULICS
DMDAMAN928

***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 DMDAMAN928 (DMDAMAN928) is a solenoid-operated 3-way, 2-position cartridge valve that functions as a direct-acting, balanced spool directional valve. It features a solenoid tube assembly that is fatigue rated for 5000 psi (350 bar) service, ensuring durability and reliability under high-pressure conditions. The valve's design includes closed transitions between Spools B and R, optimizing performance by providing faster and more consistent response times, particularly when used as pilot controls where flow capacity is less critical. This model is direct actuated and operates independently of hydraulic pressure levels, making it versatile for various applications without requiring a minimum pressure to function. The manual override feature included in models with the D or L control uses a detent mechanism designed for temporary actuation only, with a mechanical life expectancy of about 7,000 cycles. The valve is also compatible with EPDM seals for systems utilizing phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Additionally, the DMDAMAN928 employs a wet armature design where the working fluid surrounds the armature. This design can influence fluid integrity if the coil remains energized over extended periods, potentially leading to breakdowns in certain fluid types like water-glycol mixtures. For flexibility in installation and maintenance, the coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The construction of this valve incorporates Sun's floating style to reduce internal part binding due to excessive installation torque or variations in cavity/cartridge machining. With features such as a maximum operating pressure of 5000 psi (350 bar), capacity up to 12 gpm (45 L/min), and rapid response times typically around 50 ms, the Sun Hydraulics DMDAMAN928 offers robust performance for demanding directional control applications.