SUN HYDRAULICS
DNCATCV912N

***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 DNCATCV912N (DNCATCV912N) is a solenoid-operated, 4-way, 2-position cartridge valve designed for direct-acting, balanced spool directional control. This valve is particularly beneficial in pilot control circuits due to its closed transition between positions, which minimizes oil loss during shifting. It functions optimally with port 3 as the inlet and port 1 as the tank, although reverse flow is possible but not recommended for consistent performance. The solenoid tube assembly can withstand up to 5000 psi (350 bar), making it suitable for high-pressure applications without requiring minimum hydraulic pressure for operation. The valve features EPDM seals compatible with phosphate ester fluids; however, they should not be exposed to petroleum-based fluids as this could damage the seals. The design incorporates a wet armature system where the working fluid surrounds the armature and absorbs heat from the coil\u2014a crucial consideration if the coil remains energized over extended periods. Certain fluids like water-glycol mixtures may degrade under these conditions, forming varnishes that could impair functionality. The solenoid's magnetic design ensures high efficiency by delivering substantial spool actuating force per watt of energy used, resulting in dependable valve shifting. This model allows flexibility with various coil termination and voltage options available, some offering surge protection and weatherized kits for enhanced environmental resilience. Coils are interchangeable with other Sun Series 1 products and can be installed in either orientation on the tube. Connector options provide ratings up to IP69K for robust protection against harsh conditions. Additionally, Sun's floating style construction minimizes binding risks due to installation torque or machining variations within cavity/cartridge assemblies. With a capacity of 8 gpm (30 L/min) and a maximum operating pressure of 5000 psi (350 bar), this valve supports applications requiring swift response times\u2014typically around 50 ms\u2014and high switching frequencies up to 15,000 cycles per hour.