SUN HYDRAULICS
DMDATPN812N

***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 DMDATPN812N (DMDATPN812N) is a solenoid-operated, 3-way, 2-position cartridge valve that features a direct-acting, balanced spool design. This valve is particularly noted for its robust construction and high performance under pressure. It operates efficiently with a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of 12 gpm (45 L/min). The DMDATPN812N is designed to ensure closed transitions between spools B and R, enhancing performance by providing faster and more consistent response times, especially useful in pilot control applications where capacity is less critical. This model incorporates a wet armature design, allowing the working fluid to surround the armature which helps in heat dissipation when the coil is energized for extended periods. However, this can affect certain types of fluids like water-glycol mixtures which may degrade at higher temperatures. The valve\u2019s manual override feature includes a detent mechanism designed for temporary actuation with an estimated mechanical life of about 7,000 cycles. Additionally, it uses EPDM seals suitable for systems with phosphate ester fluids but incompatible with petroleum-based fluids. Other notable features include interchangeable coils with other Sun Series 1 solenoid products and the ability to mount coils on the tube in either direction. The DMDATPN812N also benefits from Sun\u2019s floating style construction which minimizes internal part binding due to installation torque or cavity/cartridge machining variations. This model's rapid response time (typically 50 ms), along with its switching frequency of up to 15,000 cycles per hour, makes it an effective solution for various hydraulic applications requiring precise control and reliability.