SUN HYDRAULICS
NCFBKDN

***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 NCFBKDN (NCFBKDN) is a precision-engineered needle valve with a reverse flow check, designed to regulate hydraulic flow efficiently. This valve features an adjustable orifice that can be fine-tuned from fully closed to its maximum diameter, allowing for precise control over fluid movement. An integrated high-capacity check valve ensures unrestricted flow from port 2 to port 1, although it is important to note that this valve is not pressure compensated. The design allows for easy interchangeability with other 2-port flow control cartridges of the same frame size, while maintaining consistent flow paths and cavity dimensions. Despite being non-compensating, the fixed orifice size controls flow in proportion to the square root of the pressure differential across ports 1 and 2. The balanced adjustment mechanism facilitates smooth adjustments even under high-pressure conditions, while the sharp-edged orifice minimizes variations caused by changes in fluid viscosity. Additionally, Sun\u2019s floating style construction reduces the risk of internal binding due to excessive torque or machining variations. This needle valve fits a Cavity T-16A and belongs to Series 3, with a capacity of up to 30 gpm (120 L/min) and a maximum operating pressure of 5000 psi (350 bar). It exhibits minimal leakage at standard conditions and allows for full adjustment over 5.5 counterclockwise turns. The valve's robust construction includes specific installation and adjustment torque requirements, ensuring reliable performance in demanding applications. Weighing approximately 1.30 lb (0.60 kg), it includes Viton seals as standard with an available seal kit for maintenance needs.