SUN HYDRAULICS
DMDAXPV814N

***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 DMDAXPV814N (DMDAXPV814N) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for robust and efficient hydraulic system control. This direct-acting, balanced spool directional valve is specifically engineered to operate without minimum hydraulic pressure, enhancing its versatility in various applications. The valve features a fatigue rating of 5000 psi (350 bar), suitable for high-pressure operations. Significantly, the DMDAXPV814N incorporates closed transitions between Spools B and R, optimizing performance by ensuring faster and more consistent response times ideal for pilot control applications where capacity is less critical. Additionally, the valve employs a wet armature design; hence it is surrounded by working fluid which helps manage the heat generated by the coil but requires careful consideration of fluid type to avoid breakdown and varnish formation. For manual override operations, models with the D or L control include a detent mechanism designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. The construction of the DMDAXPV814N utilizes Sun's floating style to minimize internal parts binding due to installation torque or cavity/cartridge machining variations. The valve supports a flow capacity of up to 12 gpm (45 L/min) and can handle maximum operating pressures up to 5000 psi (350 bar). It also allows for rapid switching frequencies up to 15,000 cycles per hour and has an impressive typical response time of about 50 ms. Interchangeable coils with other Sun Series 1 solenoid products offer additional flexibility in system design and maintenance. This model is compatible with EPDM seals when used in systems with phosphate ester fluids; however, exposure to petroleum-based fluids should be avoided as it damages the seals.