SUN HYDRAULICS
DMDALNN912

***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 DMDALNN912 (DMDALNN912) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve features a fatigue rating suitable for 5000 psi (350 bar) service, making it ideal for heavy-duty operations. The valve's unique construction includes spools B and R which are closed during the transition between positions to enhance performance limits at the cost of lower capacity. This feature is particularly beneficial in pilot control applications where speed and consistency of response are critical. The DMDALNN912 operates without requiring a minimum hydraulic pressure, facilitating its use in various hydraulic systems. It includes manual override options with a detent mechanism intended for temporary actuation, ensuring operational flexibility. The manual control assembly in models equipped with D or L control is designed to withstand approximately 7,000 cycles, underlining the valve\u2019s durability. Configurations of this cartridge with EPDM seals are specifically suited for systems using phosphate ester fluids; however, these seals must avoid exposure to petroleum-based fluids which can cause damage. Additionally, the valve employs a wet armature design that exposes the armature to working fluid, potentially affecting performance if the coil remains energized over extended periods. Interchangeability of coils with other Sun Series 1 solenoid products adds versatility to this model, allowing coils to be mounted in either direction on the tube. Furthermore, Sun\u2019s floating style construction minimizes internal part binding risks due to installation torque or cavity/cartridge machining variations. With a maximum operating pressure of 5000 psi and a capacity of 12 gpm (45 L/min), along with rapid response times typically around 50 ms and switching frequency up to 15000 cycles/hr., the DMDALNN912 is engineered for efficient and reliable operation in demanding hydraulic settings.