SUN HYDRAULICS
DMDALRV914N

***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 DMDALRV914N (DMDALRV914N) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for rigorous hydraulic applications. This direct-acting, balanced spool directional valve ensures reliable operation with its fatigue-rated solenoid tube assembly for up to 5000 psi (350 bar) service. The valve features a closed transition between Spools B and R, optimizing performance by offering faster and more consistent response times, ideal for pilot control applications where capacity is less critical. The DMDALRV914N operates without requiring a minimum hydraulic pressure, enhancing its versatility across various hydraulic systems. It includes manual override options (D or L control), primarily intended for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. Notably, cartridges equipped with EPDM seals are specifically designed for use with phosphate ester fluids; however, they must avoid exposure to petroleum-based fluids which can damage the seals. This model also employs a wet armature design where the working fluid surrounds the armature. This design consideration is crucial as prolonged coil energization could lead to fluid breakdown at high temperatures, affecting the cartridge's functionality. Additionally, the interchangeable coils compatible with other Sun Series 1 solenoid products offer flexibility in maintenance and replacement. Incorporating Sun's floating style construction minimizes internal parts binding caused by excessive installation torque or cavity/cartridge machining variations. With a capacity of 12 gpm (45 L/min) and quick response times typically around 50 ms, this valve is both efficient and robust in handling demanding hydraulic tasks while ensuring minimal leakage and optimal switching frequency up to 15,000 cycles/hr.