SUN HYDRAULICS
DNCALCN928

***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 DNCALCN928 (DNCALCN928) is a high-performance solenoid-operated, 4-way, 2-position cartridge valve designed for precise hydraulic fluid direction control. This direct-acting, balanced spool directional valve features a closed transition between positions, minimizing oil loss during shifting which is crucial in pilot control circuits. The valve operates efficiently with a capacity based on port 3 as the inlet and port 1 as the tank, although it supports reverse flow under specific conditions. Engineered for robustness, the DNCALCN928 is fatigue rated for service up to 5000 psi (350 bar), ensuring reliable operation under high-pressure conditions. It requires no minimum hydraulic pressure for operation due to its direct actuation design. The cartridge incorporates EPDM seals suitable for phosphate ester fluids; however, these seals must not be exposed to petroleum-based substances to prevent damage. This model utilizes a wet armature design where the working fluid surrounds the armature. This configuration can impact fluid integrity if the coil remains energized extensively, potentially leading to varnish formation from certain fluids like water-glycol mixtures at elevated temperatures. It offers diverse coil termination and voltage options including configurations with surge protection and has a high efficiency magnetic design that ensures effective valve shifting. Additionally, the DNCALCN928 features interchangeable coils compatible with other Sun Series 1 solenoid products and can accommodate various environmental conditions through additional weatherized coils and kits. The floating style construction of this valve minimizes internal parts binding, enhancing its operational reliability and lifespan. With specifications like an 8 gpm (30 L/min) capacity and rapid response time of approximately 50 ms, this valve stands out as an exceptional choice for demanding hydraulic applications requiring precise control and durability.