SUN HYDRAULICS
DMDALBN528

***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 DMDALBN528 (DMDALBN528) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed for robust functionality in various hydraulic systems. It features a solenoid tube assembly that is fatigue rated for up to 5000 psi (350 bar), ensuring durability and reliability under high-pressure conditions. The valve's spools, B and R, remain closed during the transition between two positions to enhance performance limits while sacrificing some capacity. This characteristic makes it particularly effective as pilot controls where capacity is less critical but fast and consistent response times are necessary. The DMDALBN528 operates without requiring a minimum hydraulic pressure, which allows for flexibility in application across different hydraulic setups. It incorporates manual override options with a detent mechanism designed for temporary actuation, suitable for applications needing occasional manual intervention. With a mechanical life expectancy of approximately 7,000 cycles for models equipped with D or L control, this valve promises longevity and reliability. Configurations with EPDM seals are specifically meant for use with phosphate ester fluids; however, these seals must avoid exposure to petroleum-based fluids which could cause damage. The wet armature design of the valve ensures that the working fluid surrounds the armature which helps manage the heat generated by the coil but could affect fluid integrity over prolonged periods of energization. Moreover, the interchangeable coils compatible with other Sun Series 1 solenoid products offer additional versatility and ease of maintenance. The floating style construction minimizes internal parts binding due to installation torque or machining variations of cavity/cartridge. With specifications like a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 12 gpm (45 L/min), and typical response time of 50 ms, this valve is an excellent choice for demanding applications requiring precise control and high reliability.