SUN HYDRAULICS
HDDAMCN812

***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 HDDAMCN812 (HDDAMCN812) is a sophisticated solenoid-after check cartridge valve combining a direct-acting solenoid poppet valve with a check function. This hybrid valve is designed for applications such as lift-lower systems and can be directly integrated into actuators. With flow permitted from inlet port 2 to system port 1, the valve blocks flow from port 2 to port 3 when the solenoid is de-energized. The robust solenoid tube assembly is fatigue-rated for service up to 5000 psi (350 bar), ensuring reliable performance under demanding conditions. The HDDAMCN812 features several manual override options, allowing temporary actuation with models equipped with D or L controls, which have an estimated mechanical life of approximately 7,000 cycles. However, manual override functionality does not support weatherized coils. Notably suitable for load-holding applications, this cartridge employs a wet armature design where the working fluid surrounds the armature, impacting coil heat management during extended energization periods. Interchangeability is a key feature of this product as its coils are compatible with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Coil connector options provide ratings up to IP69K for enhanced environmental protection. The valve incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. With a capacity of 10 gpm (40 L/min) and maximum operating pressure of 5000 psi (350 bar), the HDDAMCN812 ensures efficient operation with a typical response time of 50 ms. It maintains minimal leakage at high pressures and offers reliable switching frequency up to 15,000 cycles per hour. Additionally, it features a cavity size T-11A and requires specific installation torque parameters for optimal performance.