SUN HYDRAULICS
DNCAMWN748

***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 DNCAMWN748 (DNCAMWN748) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This valve features a closed transition between positions, significantly reducing oil loss during shifting, which is particularly beneficial in pilot control circuits. It operates with port 3 as the inlet and port 1 as the tank. Although reverse flow is possible, it is not recommended due to potential performance inconsistencies. The solenoid tube assembly of this valve is fatigue-rated for up to 5000 psi (350 bar), ensuring robust service life under demanding conditions. Notably, the DNCAMWN748 does not require any minimum hydraulic pressure for operation, making it versatile in various applications. It incorporates EPDM seals suitable for systems using phosphate ester fluids; however, exposure to petroleum-based fluids can damage these seals. The valve utilizes a wet armature design where the working fluid surrounds the armature and absorbs heat generated by the coil\u2014important to consider if the coil remains energized for extended periods. This model offers various coil termination and voltage options, including those with surge protection. Its unique magnetic design enhances efficiency by providing high spool actuating force per watt expended. Coils are interchangeable with other Sun Series 1 solenoids and can be mounted in either direction on the tube. The DNCAMWN748 also includes Sun's floating style construction to minimize internal parts binding due to excessive installation torque or machining variations. The valve has a capacity of 8 gpm (30 L/min) and supports a maximum operating pressure of 5000 psi (350 bar). It boasts a typical response time of 50 ms and a maximum leakage rate of 10 in\u00b3/min at 3000 psi (160 cc/min at 210 bar). With a switching frequency of up to 15,000 cycles per hour, this valve demonstrates reliability and performance in various hydraulic applications.