SUN HYDRAULICS
NCGBKCV

***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 NCGBKCV (NCGBKCV) is a versatile needle valve with a reverse-flow check designed for precise flow regulation. This valve features an adjustable orifice, allowing users to modulate flow from fully closed to the maximum diameter, providing flexibility in various applications. It includes an integral high-capacity check valve that ensures unrestricted flow from port 2 to port 1. However, it is important to note that this valve is not pressure compensated. The NCGBKCV model is part of the 2-port flow control cartridges series, which are both physically and functionally interchangeable within a given frame size, although extension dimensions may vary. This needle valve operates on the principle that the fixed orifice size regulates flow in proportion to the square root of the pressure differential across ports 1 and 2. It incorporates a balanced adjustment mechanism for ease of use even under high pressures. The sharp-edged orifice design minimizes flow variations due to changes in fluid viscosity, making it reliable in different conditions. Cartridges equipped with EPDM seals are specifically designed for systems using phosphate ester fluids, as exposure to petroleum-based fluids can damage these seals. The NCGBKCV model employs Sun's floating style construction, reducing the risk of internal component binding due to installation torque or machining variations. It fits into a T-18A cavity and has a series 4 capacity of 60 gpm (240 L/min) with a maximum operating pressure of 5000 psi (350 bar). The valve's leakage at 110 SUS (24 cSt) is minimal at just 10 drops/min (0.7 cc/min). Its adjustment range covers up to five complete counterclockwise turns from fully closed to fully open. The product weighs approximately 3 lbs (1.35 kg) and comes with specific installation and adjustment torque specifications for optimal performance.