SUN HYDRAULICS
DMDAXRV848

***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 DMDAXRV848 (DMDAXRV848) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for rigorous hydraulic applications. This direct-acting, balanced spool directional valve features a fatigue rating of 5000 psi (350 bar), making it suitable for high-pressure environments. The valve's spools, B and R, are closed during transition between positions to ensure a higher performance limit, though at the cost of lower capacity. This characteristic is particularly beneficial in pilot control applications where the need for capacity is minimal but fast and consistent response times are crucial. The DMDAXRV848 operates without requiring a minimum hydraulic pressure, enhancing its versatility across various hydraulic systems. It includes manual override options with detent mechanisms designated for temporary actuation only, ensuring durability with a mechanical life expectancy of approximately 7,000 cycles. Designed to work with phosphate ester fluids when configured with EPDM seals, this model avoids compatibility with petroleum-based substances to prevent seal damage. Additionally, the valve incorporates a wet armature design where the working fluid surrounds the armature. This design consideration is vital when the coil remains energized for extended periods as it could lead to fluid breakdown and subsequent varnish formation that might impair cartridge functionality. The interchangeability of coils with other Sun Series 1 solenoid products provides flexibility in maintenance and replacement procedures. The construction also uses Sun's floating style to minimize internal part binding due to excessive installation torque or variations in cavity/cartridge machining. With specifications like a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 12 gpm (45 L/min), and rapid response times typically around 50 ms, the DMDAXRV848 is engineered for both reliability and efficiency in demanding hydraulic settings.