SUN HYDRAULICS
HDDALCN612N

***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 HDDALCN612N (HDDALCN612N) is a solenoid-after check cartridge valve that combines a direct-acting solenoid poppet valve with a check function. It is designed for applications such as lift-lower systems and can be directly integrated into actuators. The valve allows 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 hybrid configuration makes it suitable for load-holding applications. The solenoid tube assembly is rated for fatigue at pressures up to 5000 psi (350 bar), ensuring durability in demanding conditions. The HDDALCN612N offers several manual override options, though it's important to note that manual override functionality is incompatible with weatherized coils. The manual control assembly, available in D, L, and T configurations, has a mechanical life expectancy of approximately 7,000 cycles and requires a force of 5 lbs/1000 psi (33 N/100 bar) at Port 1 for operation. The wet armature design allows working fluid to surround the armature, which can impact performance if the coil remains energized for extended periods\u2014particularly with water-glycol mixtures. Interchangeable coils from Sun Series 1 products can be mounted in either direction on this valve's tube, offering flexibility in installation. Coil connector options provide protection ratings up to IP69K for enhanced environmental resistance. Additionally, this cartridge features Sun's floating style construction to minimize internal binding due to excessive installation torque or machining variations. The valve has a capacity of 10 gpm (40 L/min) and exhibits minimal leakage at maximum operating pressure, with a typical response time of just 50 ms and a switching frequency capability of up to 15,000 cycles per hour.