SUN HYDRAULICS
DMDADPN812

***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 DMDADPN812 (DMDADPN812) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control. This direct-acting, balanced spool directional valve is notable for its robust construction, featuring a fatigue rating of 5000 psi (350 bar), making it suitable for demanding applications. The valve operates without needing a minimum hydraulic pressure, enhancing its versatility across various hydraulic systems. Key features of the DMDADPN812 include closed transitions between Spools B and R, which enhance performance by ensuring faster and more consistent response times at the cost of lower flow capacity\u2014ideal for pilot control applications where capacity is less critical. The valve also boasts a wet armature design; the working fluid surrounds the armature, potentially affecting fluid properties if exposed to heat for extended periods. For maintenance and durability, the model equipped with manual controls (D or L) includes a detent mechanism designed for temporary actuation with a mechanical life expectancy of about 7,000 cycles. Additionally, it uses EPDM seals compatible with phosphate ester fluids but sensitive to petroleum-based substances which could damage these seals. Interchangeability is another advantage; coils used in this model are compatible with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Moreover, the valve incorporates Sun's floating style construction to minimize internal parts binding that could arise from excessive installation torque or cavity/cartridge machining variations. This model\u2019s specifications include a maximum operating pressure of 5000 psi (350 bar), typical response times of around 50 ms, and a flow capacity up to 12 gpm (45 L/min). It also supports switching frequencies up to 15,000 cycles per hour. These features make the DMDADPN812 an excellent choice for sophisticated hydraulic systems requiring reliable and precise control.