SUN HYDRAULICS
DMDALPV228

***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 DMDALPV228 (DMDALPV228) is a solenoid-operated 3-way, 2-position cartridge valve designed for high-performance hydraulic systems. This direct-acting, balanced spool directional valve is characterized by its robust construction and reliable operation under high pressure up to 5000 psi (350 bar). The DMDALPV228 features a fatigue-rated solenoid tube assembly suitable for demanding applications. One of the notable design aspects of the DMDALPV228 is its closed transition between positions B and R, which enhances performance by providing faster and more consistent response times, particularly beneficial in pilot control applications where capacity is less critical. The valve operates without requiring a minimum hydraulic pressure, thereby offering flexibility in various system conditions. For manual override operations, the models equipped with D or L control include a detent mechanism designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. The valve also utilizes wet armature design; hence it is crucial to consider the type of fluid used as heat generated by the coil can affect fluid integrity over extended periods. Specifically, cartridges with EPDM seals are intended for use with phosphate ester fluids and must avoid exposure to petroleum-based substances. Additionally, this model supports interchangeable coils with other Sun Series 1 solenoid products and incorporates Sun's floating style construction to minimize internal part binding due to installation variances. With features like a maximum flow capacity of 12 gpm (45 L/min), rapid response times typically around 50 ms, and compatibility with standard Sun cavity T11A, the DMDALPV228 offers a versatile solution for advanced hydraulic system configurations requiring precise control and reliability.