SUN HYDRAULICS
DNDAXRN514

***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 DNDAXRN514 (DNDAXRN514) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This versatile valve is engineered for demanding applications with a fatigue-rated solenoid tube assembly that can handle pressures up to 5000 psi (350 bar). It operates without requiring a minimum hydraulic pressure, making it suitable for various hydraulic systems. The cartridge offers multiple manual override options, although it's important to note that these are not compatible with weatherized coils. The D and L control models feature a detent mechanism for temporary actuation with an estimated mechanical life of around 7,000 cycles. This valve incorporates EPDM seals specifically for use in systems utilizing phosphate ester fluids, as contact with petroleum-based substances will damage the seals. Its wet armature design allows the working fluid to cool the coil but may lead to varnish formation in certain fluids if energized continuously. The DNDAXRN514 boasts high efficiency due to its unique magnetic solenoid design, delivering substantial spool actuating force per watt. It offers various coil termination and voltage configurations with optional surge protection and interchangeable coils compatible with other Sun Series 1 products. Coil connectors can achieve ratings up to IP69K for enhanced environmental protection. Additionally, the valve features Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. Key specifications include a capacity of 10 gpm (40 L/min), typical response time of 50 ms, and maximum leakage rate at specified conditions of 10 in\u00b3/min (160 cc/min). It supports a switching frequency of up to 15,000 cycles per hour and requires specific manual override force and stroke parameters. The cartridge fits T-31A cavities and weighs approximately 0.60 lb (0.30 kg). Seal kits are available in Viton material for both the cartridge and coil components.