SUN HYDRAULICS
DNCALLV648

***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 DNCALLV648 (DNCALLV648) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This valve features a closed transition between positions, which significantly reduces oil loss during shifting\u2014a critical feature for pilot control circuits. Its capacity is optimized with port 3 as the inlet and port 1 as the tank; reverse flow is possible but not recommended due to potential performance degradation. The solenoid tube assembly is fatigue-rated for service pressures up to 5000 psi (350 bar), ensuring durability and reliability in demanding applications. Notably, this valve does not require minimum hydraulic pressure for operation, making it versatile across various systems. Designed with EPDM seals, this cartridge is suitable for systems utilizing phosphate ester fluids; however, it should not be exposed to petroleum-based fluids or lubricants to avoid seal damage. The wet armature design allows the working fluid to cool the coil but requires careful consideration of fluid compatibility with heat exposure over time. It offers diverse coil termination and voltage options, including surge protection capabilities, enhancing its adaptability in different environments. The high-efficiency solenoid delivers robust spool actuating force per watt expended, facilitating reliable valve shifting. Coils are interchangeable with other Sun Series 1 products and can be mounted in either direction on the tube. Coil connector options provide ratings up to IP69K for enhanced environmental protection. Additionally, the Sun floating style construction minimizes internal binding risks due to excessive installation torque or machining variations. Key specifications include a capacity of 8 gpm (30 L/min), response time of approximately 50 ms, a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar), and a switching frequency of up to 15,000 cycles per hour. The valve's hex size measures .78 inches (22.2 mm) with an installation torque range between 30-35 lbf\u00b7ft (41-47 Nm), weighing .60 lbs (.30 kg).