SUN HYDRAULICS
DMDAMBN636

***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 DMDAMBN636 (DMDAMBN636) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control. This direct-acting, balanced spool directional valve is well-suited for applications requiring robust performance with consistent and fast response times. It operates without the need for minimum hydraulic pressure, enhancing its effectiveness in a variety of settings. Key features of the DMDAMBN636 include a fatigue rating for 5000 psi (350 bar) service, making it reliable under high-pressure conditions. The valve's spools (B and R) remain closed during transitions between positions to prevent leakage and maintain control integrity, which is particularly beneficial in pilot control applications where precision is critical rather than flow capacity. This model incorporates a wet armature design; the working fluid surrounds the armature which can be subjected to heat during prolonged coil energization. This aspect should be considered when using fluids like water-glycol mixtures that are susceptible to breakdown and varnish formation at elevated temperatures. For environments using phosphate ester fluids, cartridges with EPDM seals are recommended; however, these should not be exposed to petroleum-based substances as they could degrade the seals. The DMDAMBN636 also features interchangeable coils compatible with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. Its construction includes Sun's floating style design which minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. With a maximum operating pressure of 5000 psi (350 bar), capacity up to 12 gpm (45 L/min), and typical response times around 50 ms, this valve ensures efficient operation across various applications. Its manual override mechanism is intended for temporary actuation only, with a mechanical life expectancy of around 7,000 cycles. This makes it an excellent choice for systems requiring reliable and precise control under demanding conditions.