SUN HYDRAULICS
NCFCHBV

***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 NCFCHBV (NCFCHBV) is a needle valve with a reverse-flow check that serves as a fully adjustable orifice for regulating flow. This valve is designed to be infinitely adjustable from fully closed to the maximum orifice diameter, providing precise control over fluid flow. It features an integral high-capacity check valve that allows unrestricted flow from port 2 to port 1, ensuring efficient operation in applications requiring reverse flow capability. However, it is important to note that this valve is not pressure compensated. All two-port flow control cartridges, including this model, are physically and functionally interchangeable for a given frame size, though cartridge extension dimensions may vary from the mounting surface. The needle valve functions as a non-compensating device, where the fixed orifice size regulates flow in proportion to the square root of the pressure differential across ports 1 and 2. A balanced adjustment mechanism facilitates easy adjustments even at high pressures, while the sharp-edged orifice design minimizes flow variations due to changes in viscosity. The Sun Hydraulics NCFCHBV incorporates floating style construction to reduce the risk of internal parts binding due to excessive installation torque or machining variations. It fits into a Cavity T-16A Series 3 with a capacity of 15 gpm (60 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The maximum valve leakage at 110 SUS (24 cSt) is limited to 5 drops/min (0.3 cc/min). The model features several adjustment specifications including counterclockwise turns from fully closed to fully open at approximately five and a half turns, with specific torque requirements for installation and adjustments. The seal kit for this cartridge uses Viton material under part number 990-016-006.