SUN HYDRAULICS
DNCAMZN748

***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 DNCAMZN748 (DNCAMZN748) is a solenoid-operated, 4-way, 2-position cartridge valve known for its direct-acting, balanced spool directional capabilities. This valve features a closed transition between positions, significantly reducing oil loss during shifting, which is particularly beneficial in pilot control circuits. Designed with port 3 as the inlet and port 1 as the tank, this valve ensures optimal capacity while allowing reverse flow, although it is not recommended due to performance concerns. The solenoid tube assembly is fatigue-rated for service up to 5000 psi (350 bar), and the valve operates without requiring minimum hydraulic pressure. Specifically designed for systems using phosphate ester fluids, cartridges with EPDM seals should avoid exposure to petroleum-based fluids to prevent seal damage. The DNCAMZN748 employs a wet armature design where the working fluid surrounds the armature and absorbs heat from the coil. This feature necessitates consideration of fluid breakdown over time under prolonged coil energization. Notably, water-glycol mixtures may form varnishes that could impair cartridge function. The solenoid's unique magnetic design offers high efficiency by delivering substantial spool actuating force per watt expended, ensuring reliable valve shifting. Interchangeable coils compatible with other Sun Series 1 solenoid products can be mounted in either direction on the tube. This model incorporates Sun's floating style construction to minimize internal part binding due to excessive installation torque or machining variations. It offers various coil termination and voltage options with surge protection available upon request. The DNCAMZN748 supports a maximum operating pressure of 5000 psi (350 bar), a typical response time of 50 ms, and can handle switching frequencies up to 15,000 cycles per hour. Its manual override requires a force of 5 lbs/1000 psi at Port 1 and has a stroke length of .10 inches (2.5 mm). The valve weighs .60 lb (.30 kg) and comes with Viton seal kits for both cartridge and coil components.