SUN HYDRAULICS
DNDATTV

***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 DNDATTV (DNDATTV) 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 high-pressure environments up to 5000 psi (350 bar). It operates without requiring a minimum hydraulic pressure, making it versatile for various applications. The design includes multiple manual override options, although these are not compatible with weatherized coils. For models with D or L control, the manual override's detent mechanism is intended for temporary actuation and has an estimated mechanical life of approximately 7,000 cycles. The valve employs EPDM seals specifically for systems using phosphate ester fluids; exposure to petroleum-based substances can damage these seals. Its wet armature design allows the working fluid to cool the armature but may lead to issues if certain fluids degrade under prolonged heat exposure from the coil. A range of coil termination and voltage configurations are available, offering flexibility in integration and surge protection options. The solenoid's magnetic design ensures high efficiency, providing substantial spool actuating force per watt and reliable valve operation. Coils are interchangeable with other Sun Series 1 solenoid products and can be installed in either orientation on the tube. Connector options provide protection ratings up to IP69K for robust environmental resistance. This valve incorporates Sun's floating style construction to reduce internal binding risks due to installation torque or machining variations. It fits within a T-31A cavity with a capacity of 10 gpm (40 L/min), supports a maximum operating pressure of 5000 psi (350 bar), and offers rapid response times around 50 ms. The maximum leakage at specified conditions is minimal at 10 in\u00b3/min (160 cc/min). With a switching frequency capability of up to 15,000 cycles per hour and specific manual override requirements detailed above, this model ensures efficient performance across various demanding applications.