SUN HYDRAULICS
NCECOCN

***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 NCECOCN (Material Number: NCECOCN) is a needle valve with a reverse-flow check, designed for precise flow regulation in hydraulic systems. This valve features an adjustable orifice that can be set from fully closed to the maximum diameter, allowing for fine-tuned control of fluid flow. It includes an integral high-capacity check valve that permits unrestricted flow from port 2 to port 1, though it is not pressure compensated. The design ensures that all 2-port flow control cartridges are interchangeable in terms of flow path and cavity size, although extension dimensions may vary. The valve's operation is based on the principle that the fixed orifice size regulates flow proportionally to the square root of the pressure differential across ports 1 and 2. It incorporates a balanced adjustment mechanism for easy operation even under high pressures, and its sharp-edged orifice design minimizes flow variations due to changes in fluid viscosity. The Sun floating style construction reduces the risk of internal parts binding from excessive installation torque or machining variations. With a capacity of 3 gpm (11 L/min) and a maximum operating pressure of 5000 psi (350 bar), this valve meets demanding performance requirements. It features minimal leakage at specified conditions and is equipped with various adjustment features including a locknut for secure setting retention. The NCECOCN model weighs approximately 0.40 lb (0.20 kg) and requires specific installation torques for optimal performance. A seal kit option with Viton material is available for maintenance needs, enhancing its durability in various applications.