SUN HYDRAULICS
NFDCYBE

***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 NFDCYBE (NFDCYBE) is a versatile needle valve, designed for precise flow regulation in hydraulic systems. This fully adjustable orifice device allows for infinite adjustments from fully closed to the maximum orifice diameter, providing flexibility in controlling flow rates. It is important to note that this needle valve is not pressure compensated, meaning it regulates flow based on the square root of the pressure differential across its ports. The NFDCYBE model offers a bidirectional flow path, with a preferred direction from port 1 to port 2 for interchangeability with other flow controls. The valve features a balanced adjustment mechanism that ensures easy operation even under high pressures, and its sharp-edged orifice design minimizes variations in flow due to changes in fluid viscosity. When adjusted to the shutoff position, the valve ensures zero leakage. The NFDCYBE model is compatible with EPDM seals for use with phosphate ester fluids; however, these seals are not suitable for petroleum-based fluids as they can cause damage. This needle valve fits into a Cavity T-5A and belongs to Series 2, with a capacity of 12 gpm (45 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The adjustment range spans 5.5 counterclockwise turns from fully closed to open. The installation requires specific torque settings: 45-50 lbf ft (61-68 Nm) for the valve and 80-90 lbf in (9-10 Nm) for the locknut. With its compact design weighing .60 lb (0.30 kg), this model provides efficient performance in various applications requiring precise hydraulic flow control.