SUN HYDRAULICS
DNCALAV828

***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 DNCALAV828 (DNCALAV828) is a high-performance, solenoid-operated, 4-way, 2-position cartridge valve that features a direct-acting, balanced spool with closed transition between positions. This design minimizes oil loss during shifting, making it ideal for applications in pilot control circuits where such losses could affect performance. The valve operates effectively 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. Engineered for durability and reliability, the DNCALAV828's solenoid tube assembly is fatigue rated for up to 5000 psi (350 bar), ensuring long service life even under demanding conditions. It requires no minimum hydraulic pressure for operation, thanks to its direct actuation mechanism. The valve features EPDM seals configured specifically for use with phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it can damage the seals. This model also incorporates a wet armature design where the working fluid surrounds the armature. Prolonged energizing of the coil may lead to fluid degradation if not properly managed, especially in systems using water-glycol mixtures. Additionally, it offers a wide range of coil termination and voltage options including models with surge protection. Its magnetic design enhances solenoid efficiency, providing high spool actuating force per Watt expended which contributes to reliable valve shifting. The DNCALAV828 benefits from Sun Hydraulics' floating style construction which reduces risks of internal parts binding due to installation torque or variations in cavity/cartridge machining. This model is compatible with other Sun Series 1 solenoid products regarding coil interchangeability and can handle switching frequencies up to 15,000 cycles per hour. Each unit is built to withstand maximum operating pressures of up to 5000 psi (350 bar) and has a typical response time of about 50 ms.