SUN HYDRAULICS
DNCALWV248

***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 DNCALWV248 (DNCALWV248) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting and balanced spool directional control. It features a closed transition between positions to minimize oil loss during shifting, making it particularly valuable in pilot control circuits. The valve's capacity is optimized with port 3 as the inlet and port 1 as the tank, although reverse flow is possible, it is not recommended due to performance limitations. This valve operates without the need for minimum hydraulic pressure and includes a solenoid tube assembly rated for 5000 psi (350 bar) service. The design incorporates EPDM seals suitable for phosphate ester fluids but requires avoidance of petroleum-based substances to prevent seal damage. Utilizing a wet armature design, the valve's working fluid surrounds the armature, which can affect performance if exposed to high temperatures over time with certain fluids like water-glycol mixtures. The solenoid's magnetic construction ensures high efficiency by providing strong spool actuating force per watt used, enhancing reliable valve shifting. Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Various coil termination and voltage options are available, some offering surge protection and IP69K ratings for enhanced environmental shielding. Additional weatherized coils and kits are offered for comprehensive protection. The floating style construction minimizes internal part binding risks due to installation torque or cavity machining variations. This valve fits into a T-31A cavity of Series 1 with an 8 gpm (30 L/min) capacity and has a maximum operating pressure of 5000 psi (350 bar). It boasts a typical response time of 50 ms and can handle switching frequencies up to 15,000 cycles per hour. The manual override requires minimal force and stroke effort while maintaining low leakage rates under specified conditions.