SUN HYDRAULICS
DNCALZV928

***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 DNCALZV928 (DNCALZV928) 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, making it particularly advantageous in pilot control circuits. The valve's capacity is optimized with port 3 as the inlet and port 1 as the tank; however, reverse flow is not recommended due to potential performance issues. The solenoid tube assembly is rated for fatigue at pressures up to 5000 psi (350 bar), ensuring robust service under demanding conditions. This valve operates without requiring minimum hydraulic pressure and incorporates EPDM seals compatible with phosphate ester fluids, though they should not be exposed to petroleum-based substances. A wet armature design allows the working fluid to surround the armature, which helps manage heat generated by the coil but may affect certain fluids over time. The DNCALZV928 offers various coil termination and voltage options, including surge protection features. Its high-efficiency solenoid design delivers superior spool actuating force per watt consumed, promoting reliable operation. Coils are interchangeable within Sun's Series 1 solenoid products and can be mounted in either direction on the tube. Connector options provide protection ratings up to IP69K for enhanced environmental resilience. The valve incorporates Sun's floating style construction to minimize internal binding risks due to excessive installation torque or machining variations. This model fits into cavity T-31A, supports a flow capacity of 8 gpm (30 L/min), and can handle maximum operating pressures of up to 5000 psi (350 bar). It boasts a typical response time of 50 ms and supports a switching frequency of up to 15,000 cycles per hour. The manual override requires a force of approximately 5 lbs at port pressures of 1000 psi (33 N at 100 bar).