SUN HYDRAULICS
NCFCKDV

***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 NCFCKDV (NCFCKDV) is a needle valve with reverse flow check, designed to provide precise flow regulation through its fully adjustable orifice. This component is suitable for applications requiring controlled flow rates, as it can be adjusted from fully closed to the maximum orifice diameter. It features an integral high-capacity check valve allowing unrestricted flow from port 2 to port 1 but lacks pressure compensation. The NCFCKDV model is part of the 2-port flow control cartridge family, ensuring physical and functional interchangeability within the same frame size while maintaining a consistent flow path and cavity design. However, there may be variations in cartridge extension dimensions from the mounting surface. The valve operates based on a fixed orifice size that regulates flow proportionally to the square root of the pressure differential across its ports. It incorporates a balanced adjustment mechanism for easy handling even at high pressures, and its sharp-edged orifice minimizes variations caused by changes in fluid viscosity. The Sun floating style construction reduces the risk of internal parts binding due to excessive installation torque or cavity-cartridge machining discrepancies. Key specifications include a capacity of 15 gpm (60 L/min) with a maximum operating pressure of 5000 psi (350 bar). The valve has minimal leakage at 110 SUS (24 cSt), with an allowable leakage rate of 5 drops per minute (0.3 cc/min). Adjustment from fully closed to fully open is achieved through five counterclockwise turns. Installation specifications include a hex size of 1-1/4 inches (31.8 mm) and an installation torque between 150-160 lbf ft (203-217 Nm). The model weighs approximately 1.30 lb (0.60 kg), and it uses Viton seals with replacement seal kit number 990016006 available for maintenance purposes.