SUN HYDRAULICS
NCGCHDV

***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 NCGCHDV (NCGCHDV) is a needle valve with reverse flow check, designed to provide precise flow regulation in hydraulic systems. This valve is fully adjustable from a closed position to the maximum orifice diameter, allowing for fine-tuned control of fluid flow. It features an integral high-capacity check valve that enables unrestricted flow from port 2 to port 1, although it is not pressure compensated. The NCGCHDV model is part of Sun's line of 2-port flow control cartridges, which are interchangeable in terms of flow path and cavity size but may vary in extension dimensions from the mounting surface. This valve operates effectively with a balanced adjustment mechanism that facilitates easy adjustments even under high-pressure conditions. Its sharp-edged orifice design minimizes variations in flow due to changes in fluid viscosity, enhancing its reliability and performance consistency. The floating style construction minimizes risks associated with internal parts binding due to excessive installation torque or machining variations. The NCGCHDV model fits into a T-18A cavity and has a series 4 capacity, supporting up to 30 gpm (120 L/min) at a maximum operating pressure of 5000 psi (350 bar). It demonstrates minimal leakage at specified conditions and allows for extensive adjustability with up to 5.5 counterclockwise turns from fully closed to open. Key physical specifications include a valve hex size of 1-5/8 inches and an installation torque requirement between 350 and 375 lbf ft. This model weighs approximately 3 pounds and uses Viton seals for durability.