SUN HYDRAULICS
DNCALJV912

***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 DNCALJV912 (DNCALJV912) is a solenoid-operated, 4-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. This valve is engineered with a closed transition between positions to significantly reduce oil loss during shifting, making it especially beneficial 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 inconsistent performance. The solenoid tube assembly is fatigue-rated for service pressures up to 5000 psi (350 bar), and the valve operates without requiring any minimum hydraulic pressure. Notably, this valve includes EPDM seals suitable for systems using phosphate ester fluids; however, exposure to petroleum-based substances can damage these seals. The wet armature design allows working fluid to surround the armature, which may impact functionality if the coil remains energized for extended periods\u2014particularly with water-glycol mixtures that degrade under heat exposure. The DNCALJV912 features a high-efficiency magnetic solenoid design providing robust spool actuating force per watt used. This ensures reliable valve shifting and allows for interchangeable coils with other Sun Series 1 solenoid products. Additionally, it offers various coil termination and voltage options, including configurations with surge protection and IP69K-rated connectors for enhanced environmental resilience. This model incorporates Sun's floating style construction to minimize internal binding risks due to excessive installation torque or machining variations. With a capacity of 8 gpm (30 L/min), response time of approximately 50 ms, maximum leakage of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), and switching frequency up to 15,000 cycles/hour, this valve is versatile and efficient. It requires a manual override force of about 5 lbs/1000 psi (33 N/100 bar) on port 1 and has an installation torque range of 30\u201335 lbf-ft (41\u201347 Nm).