SUN HYDRAULICS
DMDAXRN748

***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 DMDAXRN748 (DMDAXRN748) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise control in hydraulic systems. This direct-acting, balanced spool directional valve operates without the need for minimum hydraulic pressure, enhancing its responsiveness and reliability across various applications. It features a fatigue-rated solenoid tube assembly suitable for 5000 psi (350 bar) service, ensuring durability and longevity even under demanding conditions. The DMDAXRN748 incorporates closed transitions between spool positions B and R, optimizing performance by providing faster and more consistent response times particularly useful in pilot control applications where capacity is less critical. The valve's wet armature design allows the working fluid to surround the armature, which is beneficial for heat dissipation but requires consideration of fluid type to avoid breakdown and varnish formation that could impair operation. Designed for versatility, the valve supports interchangeable coils with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. It also features Sun\u2019s floating style construction which minimizes internal parts binding due to excessive installation torque or cavity/cartridge machining variations. The manual override mechanism included in models with D or L control is intended for temporary actuation with a mechanical life expectancy of about 7,000 cycles. This model is configured to handle a flow capacity of up to 12 gpm (45 L/min) and can accommodate maximum operating pressures up to 5000 psi (350 bar). Its swift response time of approximately 50 ms and a switching frequency capability of up to 15000 cycles/hr make it an efficient choice for systems requiring frequent operation adjustments. For systems using phosphate ester fluids, cartridges equipped with EPDM seals are recommended due to their compatibility and resistance against petroleum-based fluids damage.