SUN HYDRAULICS
DMDAMBN728

***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 DMDAMBN728 (DMDAMBN728) is a solenoid-operated 3-way, 2-position cartridge valve, characterized by a direct-acting, balanced spool directional mechanism designed for high-performance applications. This model is specifically engineered to handle a maximum operating pressure of 5000 psi (350 bar) and has a flow capacity of up to 12 gpm (45 L/min). The valve features closed transitions between Spools B and R, enhancing performance by ensuring faster and more consistent response times, particularly suitable for pilot control applications where capacity is less critical. The DMDAMBN728 operates without the need for a minimum hydraulic pressure, adding to its versatility in various system configurations. It incorporates manual override options with the D or L control which are intended for temporary actuation; these controls have a mechanical life expectancy of approximately 7,000 cycles. The model also uses EPDM seals compatible with phosphate ester fluids but should avoid exposure to petroleum-based fluids which can degrade the seals. Another notable design aspect is its wet armature setup where the working fluid surrounds the armature. This could be significant if the coil remains energized over extended periods as some fluids may degrade under prolonged heat exposure. Additionally, the valve's coils are interchangeable with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. This model also benefits from Sun\u2019s floating style construction which minimizes internal parts binding due to excessive installation torque or variations in cavity/cartridge machining. With features like a typical response time of 50 ms and maximum leakage at 3000 psi not exceeding 80 cc/min., along with an installation torque requirement between 30 \u2013 35 lbf ft (41 \u2013 47 Nm), this valve ensures reliable and efficient operation across various applications.