SUN HYDRAULICS
DMDAXNN228

***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 DMDAXNN228 (DMDAXNN228) is a solenoid-operated, 3-way, 2-position cartridge valve that excels in applications requiring a direct-acting, balanced spool directional control. This valve operates with no minimum hydraulic pressure needed for activation, making it highly versatile and suitable for a wide range of operating environments. It features a robust design with spools B and R being closed in the transition between positions to ensure higher performance limits at the expense of lower capacity. This characteristic is particularly beneficial when used as pilot controls where speed and consistency are more critical than flow capacity. The DMDAXNN228 valve includes a manual override with a detent mechanism designed for temporary actuation and offers an estimated mechanical life expectancy of around 7,000 cycles. It is built to accommodate up to 12 gpm/45 L/min flow capacity and can handle maximum operating pressures up to 5000 psi/350 bar. The response time is typically around 50 ms, making it suitable for applications requiring quick action. This model is also compatible with EPDM seals specifically for use with phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it can damage the seals. The wet armature design utilized allows the working fluid to surround the armature which helps in certain scenarios but requires consideration regarding the type of fluid used due to potential breakdowns at high temperatures. Additional features include interchangeable coils with other Sun Series 1 solenoid products and a floating style construction that minimizes internal parts binding. With its compact size and lightweight design (approximately 0.60 lb/0.30 kg), this valve offers an efficient solution for directing flow within hydraulic systems while ensuring reliability and durability in demanding applications.