SUN HYDRAULICS
NCFBHCN

***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 NCFBHCN (NCFBHCN) is a needle valve with reverse flow check, designed to provide precise flow regulation through its adjustable orifice. This model allows for infinite adjustment from fully closed to the maximum orifice diameter, ensuring optimal control over fluid flow. It features an integral high-capacity check valve that facilitates unrestricted flow from port 2 to port 1, although it is not pressure compensated. The NCFBHCN is part of the 2-port flow control cartridge series, which are interchangeable in terms of flow path and cavity size, though extension dimensions may differ. This needle valve operates by regulating flow in proportion to the square root of the pressure differential between ports 1 and 2 due to its non-compensating nature. The balanced adjustment mechanism ensures ease of use even under high-pressure conditions, while the sharp-edged orifice design minimizes variations caused by changes in fluid viscosity. The floating style construction reduces the risk of internal binding due to installation torque or machining differences. Key specifications include a capacity of 30 gpm (120 L/min) with a maximum operating pressure of 5000 psi (350 bar). The valve demonstrates minimal leakage at 10 drops/min under specified conditions and allows for adjustments over a range of up to 5.5 counterclockwise turns from fully closed to open. It has specific installation requirements such as a hex size of 1-1/4 inches and installation torque between 150-160 lbf ft. The NCFBHCN model weighs approximately 1.30 lb (0.60 kg) and uses Viton seal kits for enhanced durability and performance in hydraulic systems.