SUN HYDRAULICS
DNDATTN612

***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 DNDATTN612 (DNDATTN612) is a solenoid-operated 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This valve features a fatigue-rated solenoid tube assembly suitable for service pressures up to 5000 psi (350 bar) and does not require a minimum hydraulic pressure for operation. It offers various manual override options, although these are not compatible with weatherized coils. The manual override mechanism has a mechanical lifespan of approximately 7,000 cycles, and the detent mechanism is intended for temporary actuation. For systems using phosphate ester fluids, cartridges with EPDM seals are recommended to avoid damage from petroleum-based substances. The valve employs a wet armature design, with working fluid surrounding the armature and exposed to coil-generated heat\u2014an important consideration when using fluids like water-glycol mixtures that may degrade over time at elevated temperatures. This high-efficiency solenoid features a unique magnetic design that provides substantial spool actuating force per watt consumed, ensuring reliable valve shifting. It supports various coil termination and voltage options, including those with surge protection. Compatible with other Sun Series 1 solenoid products, the coils can be mounted in either direction on the tube. Coil connector options offer ratings up to IP69K for enhanced environmental protection. The valve incorporates Sun's floating style construction to reduce internal part binding due to excessive installation torque or machining variations in cavity/cartridge applications. With a cavity size of T-31A and series designation of 1, it has a capacity of 10 gpm (40 L/min), response time of approximately 50 ms, maximum leakage rate at specified conditions of 10 in\u00b3/min (160 cc/min), and switching frequency capability up to 15,000 cycles per hour. The installation torque requirement ranges from 30-35 lbf-ft (41-47 Nm), with a manual override stroke length of .10 inches (2.5 mm).