SUN HYDRAULICS
DNCALTN224N

***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 DNCALTN224N (DNCALTN224N) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting applications with a balanced spool directional mechanism. This valve features a closed transition between positions, significantly reducing oil loss during shifting, which is particularly advantageous in pilot control circuits. It is optimized for operation with port 3 as the inlet and port 1 as the tank, although reverse flow is possible but not recommended due to potential performance degradation. The solenoid tube assembly is fatigue-rated for service up to 5000 psi (350 bar), ensuring durability and reliability in high-pressure environments. This valve operates without requiring minimum hydraulic pressure, making it versatile for various applications. It incorporates EPDM seals suitable for systems utilizing phosphate ester fluids; however, these seals are vulnerable to damage from petroleum-based fluids and lubricants. The DNCALTN224N utilizes a wet armature design where the working fluid surrounds the armature, exposing it to heat generated by the coil. This aspect may impact performance if the coil remains energized over extended periods, especially with fluids like water-glycol mixtures that can degrade at high temperatures. The solenoid's magnetic design enhances efficiency by providing high spool actuating force per watt expended, ensuring reliable valve shifting. The coil options are interchangeable with other Sun Series 1 solenoid products and offer various termination and voltage configurations, including surge protection capabilities and IP69K-rated connectors for enhanced environmental protection. This model features Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. It has a capacity of 8 gpm (30 L/min) and a maximum operating pressure of 5000 psi (350 bar), with typical response times of 50 ms and maximum leakage at specified conditions of 10 in\u00b3/min (160 cc/min). The manual override requires minimal force and stroke for operation, adding to its user-friendly design attributes.