SUN HYDRAULICS
DNCATCV228

***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 DNCATCV228 (DNCATCV228) is a solenoid-operated, 4-way, 2-position cartridge valve featuring a direct-acting, balanced spool design. This valve is engineered for applications where minimizing oil loss during position transitions is crucial, such as in pilot control circuits. It is designed with port 3 as the inlet and port 1 as the tank, although reverse flow is possible, it is not recommended due to potential performance discrepancies. The solenoid tube assembly supports fatigue-rated service pressures up to 5000 psi (350 bar), ensuring robust performance under demanding conditions. The valve operates without the need for minimum hydraulic pressure and uses EPDM seals suitable for phosphate ester fluids, while exposure to petroleum-based substances should be avoided to prevent seal damage. Featuring a wet armature design, the valve's performance can be affected by prolonged coil energization due to heat exposure. A variety of coil termination and voltage options are available, including configurations with surge protection. This high-efficiency solenoid design delivers significant spool actuating force per watt consumed, enhancing reliability in valve shifting operations. The DNCATCV228 incorporates Sun's floating style construction to reduce risks of internal part binding from excessive installation torque or machining variations in cavity/cartridge interfaces. It has a capacity of 8 gpm (30 L/min) and can handle maximum operating pressures of up to 5000 psi (350 bar). The typical response time for this valve is approximately 50 milliseconds, with a leakage rate at maximum pressure of 10 in\u00b3/min (160 cc/min) at 3000 psi (210 bar). It supports switching frequencies up to 15,000 cycles per hour and features manual override capabilities requiring minimal force for operation. The interchangeable coils are compatible with other Sun Series 1 solenoid products and are rated up to IP69K for enhanced environmental protection.