SUN HYDRAULICS
NCFCYAN

***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 NCFCYAN (NCFCYAN) is a versatile needle valve with a reverse-flow check, designed for precise flow regulation. This valve features an infinitely adjustable orifice, allowing for control from fully closed to the maximum orifice diameter. It includes an integral high-capacity check valve that enables unrestricted flow from port 2 to port 1, though it is not pressure compensated. The design ensures physical and functional interchangeability with other 2-port flow control cartridges of the same frame size, despite potential variations in cartridge extension dimensions from the mounting surface. This needle valve operates based on the square root of the pressure differential across its ports due to its non-compensating nature. Its balanced adjustment mechanism facilitates easy adjustments even under high pressure conditions. The sharp-edged orifice design effectively minimizes flow variations caused by changes in fluid viscosity. Additionally, it incorporates Sun's floating style construction to reduce the risk of internal parts binding from excessive installation torque or machining variations. Key specifications include a capacity of 15 gpm (60 L/min) and 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). It allows for up to 5.5 counterclockwise turns from fully closed to fully open for adjustment. The valve has a hex size of 1-1/4 inches and requires an installation torque between 150 and 160 lbf ft (203 - 217 Nm). The adjustment screw has an internal hex size of 5/32 inches, while the locknut hex size is 9/16 inches with a torque specification of 80 - 90 lbf in (9 -10 Nm). The model weighs approximately 1.30 lb (0.60 kg) and utilizes Viton seals as part of its cartridge seal kit, model number: 990016006.