SUN HYDRAULICS
DNDCXRE71299

***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 DNDCXRE71299 (DNDCXRE71299) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed with a spring-centered neutral position. This valve is engineered for high performance and reliability in hydraulic systems, offering seamless flow control depending on the energization of its coils. When coil A is activated, the fluid flows from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B redirects the flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is robustly built to withstand service pressures up to 5000 psi (350 bar), ensuring durability under demanding conditions. This model requires no minimum hydraulic pressure for operation due to its direct actuation mechanism. It is particularly suitable for differential flow circuits where higher return flow should be managed through specific ports. The valve's wet armature design allows working fluid exposure to coil-generated heat, which can affect certain fluids over prolonged periods. The DNDCXRE71299 offers versatile coil termination and voltage options, including configurations with surge protection. The solenoid's magnetic design enhances efficiency by maximizing spool actuating force per watt used, promoting reliable valve shifting. Coils compatible with other Sun Series 1 products are interchangeable and can be mounted in either direction on the tube. This model also incorporates Sun's floating style construction, reducing the likelihood of internal part binding due to excessive torque or machining variations during installation. With a capacity of up to 5 gpm (20 L/min) and a typical response time of 50 ms, this valve supports high-frequency switching of up to 15,000 cycles per hour while maintaining minimal leakage at specified viscosities and pressures. The DNDCXRE71299 is available with various seal kits for enhanced compatibility with different system requirements.