SUN HYDRAULICS
DMDALBN548

***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 DMDALBN548 (DMDALBN548) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust and precise hydraulic fluid control. This direct-acting, balanced spool directional valve features a solenoid tube assembly that is fatigue rated for up to 5000 psi (350 bar), making it suitable for high-pressure applications. The valve operates with a closed transition between its two positions (Spools B and R), enhancing performance by delivering faster and more consistent response times, particularly beneficial when used as pilot controls. The DMDALBN548 requires no minimum hydraulic pressure for operation, ensuring reliable functionality across a range of conditions. It includes manual override options with the D or L control featuring a detent mechanism designed for temporary actuation, supporting mechanical life expectancy of around 7,000 cycles. The valve's design incorporates EPDM seals ideal for systems using phosphate ester fluids; however, these seals are susceptible to damage if exposed to petroleum-based fluids. This model also employs a wet armature design where the working fluid surrounds the armature. This aspect is crucial as prolonged coil energization can lead to fluid breakdown in certain conditions, such as with water-glycol mixtures which might form varnishes affecting cartridge function. The interchangeable coils compatible with other Sun Series 1 solenoid products add versatility, and the floating style construction minimizes internal parts binding caused by installation torque or cavity/cartridge machining variations. Key specifications include a maximum flow capacity of 12 gpm (45 L/min), typical response time of 50 ms, and maximum operating pressure of 5000 psi (350 bar). Additionally, the valve supports switching frequencies up to 15,000 cycles/hr and incorporates practical features such as manual override requiring minimal force and short stroke distances. With its compact size and light weight (.60 lb/0.30 kg), the DMDALBN548 offers an efficient solution for dynamic hydraulic system needs.