SUN HYDRAULICS
DNCALTN836

***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 DNCALTN836 (DNCALTN836) is a solenoid-operated, 4-way, 2-position cartridge valve featuring a direct-acting balanced spool design. It offers closed transition between positions, effectively minimizing oil loss during shifting, which is particularly beneficial in pilot control circuits. This valve's capacity is optimized with port 3 as the inlet and port 1 as the tank; although reverse flow is possible, it may not perform optimally and is therefore not recommended. The solenoid tube assembly of this valve is fatigue-rated for service pressures up to 5000 psi (350 bar), and it operates without requiring a minimum hydraulic pressure. Configured with EPDM seals, it is suitable for systems using phosphate ester fluids, but exposure to petroleum-based substances should be avoided to prevent seal damage. The valve incorporates a wet armature design where the working fluid surrounds the armature and dissipates heat generated by the coil\u2014a critical consideration if the coil remains energized for extended periods since some fluids may degrade under these conditions. The DNCALTN836 provides various coil termination and voltage options with or without surge protection, supporting customization based on application needs. Its high-efficiency solenoid design ensures reliable valve shifting by delivering substantial spool actuating force per watt expended. The coils can be interchanged with other Sun Series 1 solenoid products and mounted in either direction on the tube. For enhanced environmental protection, weatherized coils and kits are available, with connector options rated up to IP69K. Utilizing Sun\u2019s floating style construction minimizes internal part binding risks due to excessive installation torque or cavity/cartridge machining variations. With a capacity of 8 gpm (30 L/min) and a typical response time of 50 ms, this valve supports switching frequencies up to 15,000 cycles per hour while maintaining minimal leakage rates under specified conditions.