SUN HYDRAULICS
NCECYDN

***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 NCECYDN (NCECYDN) is a needle valve with a reverse flow check, designed as a fully adjustable orifice to regulate flow. This model allows for infinite adjustment from fully closed to the maximum orifice diameter, providing precise control over fluid flow. It features an integral high-capacity check valve that ensures unrestricted flow from port 2 to port 1 but is not pressure compensated. The NCECYDN is part of the 2-port flow control cartridge series, which are interchangeable in terms of flow path and cavity size, although extension dimensions may vary. The valve's balanced adjustment mechanism facilitates easy adjustments even at high pressures, and its sharp-edged orifice design minimizes variations due to changes in fluid viscosity. It incorporates Sun's floating style construction to reduce the risk of internal binding caused by excessive torque or machining variations. The NCECYDN fits in a T-5A cavity and is part of the Series 2 capacity, supporting flows up to 3 gpm (11 L/min) with a maximum operating pressure of 5000 psi (350 bar). The valve has a leakage rate of up to 5 drops/min at 110 SUS (24 cSt). Its adjustment range spans 5.5 counterclockwise turns from fully closed to open. The valve has specific installation requirements: a hex size of 1-1/8 inches for installation torque between 45-50 lbf ft, an internal hex size for the adjustment screw at 5/32 inches, and a locknut hex size of 9/16 inches requiring torque between 80-90 lbf in. The model weighs .40 lb (.20 kg) and utilizes Viton seal kits for cartridge sealing.