SUN HYDRAULICS
DNCALLN912

***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 DNCALLN912 (DNCALLN912) is a versatile solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting applications with a balanced spool directional configuration. This valve features a closed transition between positions, which significantly reduces oil loss during shifting, making it particularly beneficial for pilot control circuits. It is engineered for systems where port 3 serves as the inlet and port 1 as the tank; however, while reverse flow is possible, it is not recommended as performance cannot be guaranteed. The solenoid tube assembly of this valve is fatigue-rated for up to 5000 psi (350 bar), ensuring durability under high-pressure conditions. The DNCALLN912 operates efficiently without requiring minimum hydraulic pressure due to its direct-actuated design. It incorporates EPDM seals suitable for phosphate ester fluid systems, although exposure to petroleum-based fluids can damage these seals. The wet armature design allows the working fluid to surround and cool the armature but requires careful consideration of fluid breakdown at high temperatures during prolonged coil energization. This model offers various coil termination and voltage options, with or without surge protection, enhancing its adaptability across different applications. The solenoid's magnetic design ensures high efficiency and reliable valve shifting by maximizing spool actuating force per watt expended. Coils are interchangeable with other Sun Series 1 solenoid products and feature flexible mounting options. Additionally, the DNCALLN912 incorporates Sun's floating style construction to minimize internal part binding due to installation torque or machining variations. With a capacity of 8 gpm (30 L/min), a typical response time of 50 ms, and compatibility with IP69K-rated coil connectors for enhanced environmental protection, this valve demonstrates robust performance in demanding conditions. Its manual override feature requires minimal force and stroke length for user convenience during maintenance or emergency operations.