SUN HYDRAULICS
HDDADCN648

***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 HDDADCN648 (HDDADCN648) is a versatile solenoid-after check cartridge valve designed for applications requiring reliable load holding and lift-lower operations. This hybrid valve combines a direct-acting solenoid poppet valve with a check function, allowing 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. It is suitable for integration directly into actuators, offering seamless operation in demanding environments. The solenoid tube assembly is engineered to withstand up to 5000 psi (350 bar), ensuring durability under high-pressure conditions. This cartridge features a wet armature design, which immerses the armature in working fluid, helping manage heat generated by the coil during prolonged energization. However, caution should be taken with fluids like water-glycol mixtures that may degrade under such conditions. The HDDADCN648 offers several manual override options, including configurations without manual overrides, though these are not compatible with weatherized coils. Interchangeable with other Sun Series 1 solenoid products, the coils can be mounted bidirectionally on the tube and offer connector options rated up to IP69K for enhanced environmental protection. Constructed using Sun's floating style design, this valve minimizes internal part binding caused by excessive torque or machining variations during installation. Key specifications include a capacity of 10 gpm (40 L/min), a typical response time of 50 ms, and maximum leakage of 10 drops/min at 110 SUS (24 cSt). The manual override requires a force of approximately 5 lbs/1000 psi at Port 1 and has an approximate mechanical life expectancy of about 7,000 cycles. The valve's cavity type is T-11A and it supports switching frequencies up to 15,000 cycles per hour.