SUN HYDRAULICS
DNCALJN728

***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 DNCALJN728 (DNCALJN728) is a high-performance, solenoid-operated, 4-way, 2-position cartridge valve designed for precise hydraulic fluid direction control in various applications. This direct-acting, balanced spool directional valve features a closed transition between positions, which minimizes oil loss during shifting\u2014a crucial aspect for maintaining efficiency in pilot control circuits. The valve's capacity is optimized with port 3 as the inlet and port 1 as the tank outlet; however, it supports reverse flow under non-guaranteed performance conditions. Engineered for robustness, the DNCALJN728's solenoid tube assembly is fatigue rated for up to 5000 psi (350 bar), ensuring durability under high-pressure operations. It operates without requiring a minimum hydraulic pressure, enhancing its versatility across different hydraulic systems. Notably, this model incorporates EPDM seals specifically for use with phosphate ester fluids; these seals are susceptible to damage if exposed to petroleum-based substances. A distinctive feature of this valve is its wet armature design where the working fluid envelops the armature. This configuration can impact fluid integrity if subjected to prolonged heat exposure from the coil\u2014important to consider when using certain fluid types like water-glycol mixtures. The DNCALJN728 boasts a variety of coil termination and voltage options, including models with surge protection and weather-resistant enhancements. Additionally, Sun Hydraulics has equipped this model with their innovative floating style construction which helps prevent internal parts binding that could result from excessive installation torque or variations in cavity/cartridge machining. With a maximum operating pressure of 5000 psi and a flow capacity of up to 8 gpm (30 L/min), the DNCALJN728 is designed to meet demanding hydraulic control requirements while ensuring reliable operation and minimal maintenance needs.