SUN HYDRAULICS
DMDAXNN299

***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 DMDAXNN299 (DMDAXNN299) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve. This direct-acting, balanced spool directional valve is designed to operate efficiently with a maximum operating pressure of 5000 psi (350 bar) and a flow capacity of 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 applications as pilot controls where capacity is less critical. The DMDAXNN299 is equipped with interchangeable coils from the Sun Series 1 solenoid products, which can be mounted in either direction on the tube. It employs a wet armature design where the working fluid surrounds the armature, potentially affecting fluid characteristics if exposed to prolonged heat from an energized coil. Special attention should be given to using appropriate fluids such as phosphate ester fluids when EPDM seals are configured to prevent seal degradation. This model incorporates Sun's floating style construction to minimize internal binding due to installation torque or variations in cavity/cartridge machining. It requires no minimum hydraulic pressure for operation, making it highly versatile for various fluid power applications. Additionally, the valve's manual override feature is designed for temporary actuation with a mechanical life expectancy of approximately 7,000 cycles. With a response time typically around 50 ms and minimal leakage at high pressures (5 in\u00b3/min at 3000 psi), this valve assures reliable performance even under demanding conditions. The DMDAXNN299 also supports switching frequencies up to 15,000 cycles per hour. This robust construction combined with precise operational control makes it ideal for advanced hydraulic systems requiring dependable directional control and rapid response times.