SUN HYDRAULICS
DMDADBV812N

***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 DMDADBV812N (DMDADBV812N) is a high-performance solenoid-operated 3-way, 2-position cartridge valve designed for robust hydraulic system applications. This direct-acting, balanced spool directional valve is engineered to operate without minimum hydraulic pressure, enhancing its versatility in various operational contexts. With a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of up to 12 gpm (45 L/min), it meets the demands of high-pressure systems efficiently. The valve features a wet armature design where the working fluid surrounds the armature, which helps in heat dissipation but requires consideration regarding fluid compatibility, especially with prolonged coil energization. It is compatible with EPDM seals specifically for use with phosphate ester fluids; however, these seals are vulnerable to damage if exposed to petroleum-based fluids. A notable design aspect of the DMDADBV812N is its closed transition between spool positions B and R, which minimizes performance loss but reduces capacity. This characteristic makes it ideal for pilot control applications where speed and consistency are critical rather than flow capacity. Additionally, manual override options (D, L, and T controls) are available with a mechanical life expectancy of around 7,000 cycles. The manual override requires minimal force (5 lbs at 1000 psi), ensuring easy operation under varying pressure conditions. This valve also benefits from Sun Hydraulics' floating style construction which minimizes internal part binding due to installation torque or machining variations in the cavity/cartridge interface. The interchangeability of coils with other Sun Series 1 solenoid products adds flexibility for system designers and maintenance engineers. The robust construction and thoughtful engineering make the DMDADBV812N an excellent choice for applications requiring reliable directional control in a compact solenoid valve configuration.