SUN HYDRAULICS
DNDAXZN228

***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 DNDAXZN228 (DNDAXZN228) is a solenoid-operated 4-way, 2-position cartridge valve designed for efficient directional control in hydraulic systems. This direct-acting, balanced spool valve is fatigue-rated for up to 5000 psi (350 bar) service, ensuring durability under high-pressure conditions. It operates without the need for minimum hydraulic pressure, making it versatile for various applications. The valve features a wet armature design, where the working fluid surrounds the armature, which can influence performance if the coil is energized for extended periods. Notably, this design provides high efficiency with significant spool actuating force per watt expended, leading to reliable shifting. The DNDAXZN228 offers several manual override options; however, note that manual override functionality is incompatible with weatherized coils. The detent mechanism in models with D or L control is intended for temporary actuation and boasts a mechanical life expectancy of approximately 7,000 cycles. For systems using phosphate ester fluids, cartridges with EPDM seals are recommended due to their compatibility. Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. The valve supports a variety of coil termination and voltage options with ratings up to IP69K available for enhanced environmental protection. It incorporates Sun's floating style construction to minimize internal binding risks due to installation torque or machining variations. Additional specifications include a capacity of 10 gpm (40 L/min), typical response time of 50 ms, and maximum leakage at 110 SUS (24 cSt) of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). The valve's switching frequency reaches up to 15,000 cycles per hour with manual override requiring a force of approximately 5 lbs/1000 psi (33 N/100 bar). Its compact design includes a solenoid tube diameter of .75 inches (19 mm) and requires an installation torque between 30-35 lbf\u00b7ft (41-47 Nm).