SUN HYDRAULICS
DNCALTN914

***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 DNCALTN914 (DNCALTN914) is a solenoid-operated, 4-way, 2-position cartridge valve specifically designed for efficient directional control in hydraulic systems. This direct-acting, balanced spool valve features a closed transition between positions to minimize oil loss during shifting, making it particularly beneficial in pilot control circuits. The valve is optimized for use with port 3 as the inlet and port 1 as the tank, although reverse flow is possible but not recommended due to potential performance inconsistencies. Engineered for durability, the solenoid tube assembly can withstand up to 5000 psi (350 bar), ensuring reliable operation under high-pressure conditions. The DNCALTN914 does not require a minimum hydraulic pressure for activation, thanks to its direct actuation mechanism. It incorporates EPDM seals suitable for phosphate ester fluid systems; however, these seals are vulnerable to damage from petroleum-based fluids. The wet armature design of the solenoid allows the working fluid to encase the armature, which can be affected by prolonged coil energization due to heat exposure. The valve's high-efficiency solenoid achieves significant actuating force per watt expended, ensuring dependable valve shifting. This model offers various coil termination and voltage configurations with optional surge protection. Coils are interchangeable within Sun Series 1 products and can be mounted bidirectionally on the tube. Connector options provide protection ratings up to IP69K, with additional weatherized coils available for enhanced environmental resistance. The Sun floating style construction minimizes internal binding risks due to installation torque or machining variations. With a capacity of 8 gpm (30 L/min) and maximum operating pressure of 5000 psi (350 bar), this valve demonstrates quick response times of approximately 50 ms and supports switching frequencies of up to 15,000 cycles per hour. It features manual override capabilities requiring minimal force and stroke length adjustments for user convenience during maintenance or emergency operations.