SUN HYDRAULICS
NCGBYAV

***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 NCGBYAV (NCGBYAV) is a needle valve with a reverse-flow check, designed as a fully adjustable orifice to regulate flow efficiently. It allows for infinite adjustment from fully closed to the maximum orifice diameter, providing versatility in flow control applications. The integral high-capacity check valve ensures unrestricted flow from port 2 to port 1, although it is not pressure compensated. This feature makes it suitable for applications where pressure differential across ports 1 and 2 can be managed, as the fixed orifice size regulates flow proportional to the square root of this differential. This model is interchangeable with other 2-port flow control cartridges in terms of flow path and cavity for a given frame size, although extension dimensions may vary. The NCGBYAV utilizes a balanced adjustment mechanism that facilitates easy adjustments even under high pressures, while its sharp-edged orifice design minimizes flow variations due to changes in viscosity. The cartridge incorporates Sun's floating style construction to reduce the risk of internal part binding due to excessive installation torque or machining variations in cavity/cartridge interfaces. It features a capacity of 60 gpm (240 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The valve has minimal leakage at specified conditions and includes various specifications for installation torque and adjustments. Cartridges configured with EPDM seals are specifically designed for use with phosphate ester fluids; however, they should not be exposed to petroleum-based fluids as this will damage the seals. The model weighs approximately 3 pounds (1.35 kg) and comes with detailed specifications for installation and adjustment settings.