SUN HYDRAULICS
DNCALWN612

***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 DNCALWN612 (DNCALWN612) is a 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, effectively minimizing oil loss during shifting, which is particularly beneficial in pilot control circuits. It operates optimally with port 3 as the inlet and port 1 as the tank, although reverse flow is possible but not recommended due to potential performance issues. The solenoid tube assembly of this valve is fatigue-rated for service pressures up to 5000 psi (350 bar), ensuring durability and reliability under demanding conditions. The valve does not require a minimum hydraulic pressure for operation, making it versatile across various applications. This model incorporates EPDM seals suitable for systems using phosphate ester fluids; however, it should be noted that exposure to petroleum-based substances may damage these seals. The wet armature design allows the working fluid to surround the armature and absorb heat from the coil, which can be crucial if the coil remains energized over extended periods. This feature requires careful consideration when using fluids like water-glycol mixtures that may degrade at high temperatures and affect valve performance. The DNCALWN612 offers several coil termination and voltage options, including configurations with surge protection. Its high-efficiency solenoid design delivers significant spool actuating force per watt, ensuring reliable shifts. Coils are interchangeable with other Sun Series 1 products and can be mounted in either direction on the tube. For enhanced environmental protection, additional weatherized coils and kits are available. With a capacity of 8 gpm (30 L/min) and a typical response time of 50 ms, this valve suits high-frequency operations up to 15,000 cycles per hour. It features Sun's floating style construction to reduce internal part binding due to installation torque or machining variations in cavities or cartridges.