SUN HYDRAULICS
HDDAMCN812N

***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 HDDAMCN812N (HDDAMCN812N) is a solenoid-operated check cartridge valve designed for hybrid applications, featuring a direct-acting solenoid poppet valve integrated after the check function. The valve facilitates flow from the inlet port 2 to the system port 1, while blocking flow from port 2 to port 3 when the solenoid is de-energized. This combination makes it ideal for lift-lower applications and allows for direct integration into actuators. The solenoid tube assembly is rated for fatigue at 5000 psi (350 bar), ensuring robust performance in demanding conditions. The valve offers multiple manual override options, including no override, and features a detent mechanism in models with D or L control for temporary actuation, supporting approximately 7,000 cycles of mechanical life expectancy. This cartridge valve is suitable for load-holding applications and employs a wet armature design, where working fluid surrounds the armature and absorbs heat generated by the coil. This design consideration is crucial for long-term coil energization as some fluids may degrade under high temperatures, affecting functionality. Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Various coil connector options offer protection ratings up to IP69K for enhanced environmental resilience. The HDDAMCN812N incorporates Sun's floating style construction to minimize internal binding risks due to excessive installation torque or machining variations. It has a cavity designation of T-11A and belongs to Series 1 with a capacity of 10 gpm (40 L/min). The valve operates at a maximum pressure of 5000 psi (350 bar) with typical response times around 50 ms and minimal leakage rates. Its check cracking pressure stands at 30 psi (2 bar), supporting high switching frequencies up to 15,000 cycles per hour.