SUN HYDRAULICS
DMDAMNN814

***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 DMDAMNN814 (DMDAMNN814) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for demanding hydraulic applications. This direct-acting, balanced spool directional valve features a fatigue-rated solenoid tube assembly capable of handling pressures up to 5000 psi (350 bar), making it suitable for high-pressure systems. The valve operates with no minimum hydraulic pressure required, enhancing its versatility in various hydraulic circuits. The DMDAMNN814 features closed transitions between its two positions (Spools B and R), which helps achieve faster and more consistent response times when used as pilot controls. This design choice leads to higher performance albeit at the cost of lower flow capacity, which is generally not a critical factor in pilot control applications. Additionally, the manual override options (D, L, and T controls) come with a detent mechanism designed for temporary actuation, supporting about 7,000 mechanical cycles. For environments using phosphate ester fluids, cartridges equipped with EPDM seals are recommended; however, these should not be exposed to petroleum-based fluids as they could damage the seals. The valve's wet armature design allows the working fluid to surround the armature directly; this setup requires careful consideration of fluid type and operating duration as heat from prolonged coil energization can degrade certain fluids. This model also benefits from Sun's floating style construction which minimizes internal parts binding due to excessive installation torque or machining variations in the cavity/cartridge setup. With interchangeable coils compatible with other Sun Series 1 solenoid products and a robust switching frequency capability of 15,000 cycles per hour, this valve is engineered for reliability and consistent performance across a wide range of industrial applications.