SUN HYDRAULICS
DMDATRN648

***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 DMDATRN648 (DMDATRN648) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is capable of operating at pressures up to 5000 psi (350 bar), making it ideal for applications requiring reliable high-pressure performance. The valve features a unique closed transition between Spools B and R, enhancing performance by ensuring faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. The DMDATRN648 is designed with a wet armature setup, meaning the working fluid surrounds the armature which can be exposed to heat when the coil is energized for extended periods. This design consideration is crucial for applications involving long operational hours as it impacts fluid integrity over time. The unit\u2019s manual override options (D, L, T control types) provide temporary actuation with a mechanical lifespan of approximately 7,000 cycles. For compatibility with different system fluids, cartridges configured with EPDM seals are specifically intended for use with phosphate ester fluids; however, they must avoid exposure to petroleum-based substances to prevent seal damage. Additionally, this model boasts interchangeable coils with other Sun Series 1 solenoid products and incorporates Sun\u2019s floating style construction which minimizes internal parts binding\u2014a common issue in environments with variable installation torque or machining discrepancies. Key specifications include a flow capacity of up to 12 gpm (45 L/min), rapid response times typically around 50 ms, and a manual override force requirement of 5 lbs at 1000 psi. The valve also supports a high switching frequency up to 15,000 cycles per hour and features minimal leakage at high pressures. These characteristics make the DMDATRN648 an excellent choice for sophisticated hydraulic systems demanding robust control and durability.