SUN HYDRAULICS
DMDALBV628

***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 DMDALBV628 (DMDALBV628) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve features a robust design with a solenoid tube assembly that is fatigue rated for service up to 5000 psi (350 bar). It includes spools B and R that are closed in the transition between their two positions, enhancing performance limits at the expense of lower capacity. This characteristic makes it ideal for pilot controls where capacity is less critical but fast and consistent response times are necessary. The DMDALBV628 operates without requiring a minimum hydraulic pressure, adding to its versatility in various applications. Models equipped with the D or L control have a manual override detent mechanism designed for temporary actuation, with a mechanical life expectancy of approximately 7,000 cycles. The valve also features cartridges configured with EPDM seals suitable for use with phosphate ester fluids; however, these seals must not be exposed to petroleum-based fluids as they can cause damage. Moreover, the valve's wet armature design allows the working fluid to surround the armature which could be subject to heat if the coil remains energized over long periods. This factor should be considered especially when using water-glycol mixtures that may degrade under high temperatures. The interchangeable coils compatible with other Sun Series 1 solenoid products offer flexibility in maintenance and replacement processes. Additional features include Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With specifications like a maximum operating pressure of 5000 psi, flow capacity up to 12 gpm (45 L/min), and typical response times of 50 ms, this valve is engineered to meet rigorous industrial demands while ensuring reliability and efficiency in operation.