SUN HYDRAULICS
NFCDLFE

***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 NFCDLFE (Material Number: NFCDLFE) is a versatile needle valve designed for precise flow regulation in hydraulic systems. This fully adjustable orifice allows for infinite adjustment from fully closed to the maximum orifice diameter, making it suitable as a flow control or shutoff valve. The NFCDLFE is not pressure compensated, meaning the fixed orifice size regulates flow based on the square root of the pressure differential across ports 1 and 2. Its balanced adjustment mechanism ensures easy operation even at high pressures, and the sharp-edged orifice design minimizes flow variations due to viscosity changes. The valve features a bidirectional flow path, with port 1 to 2 being the preferred direction for interchangeability with other flow controls. The NFCDLFE model fits into a Cavity T-13A Series 1 and has a capacity of 20 gpm (80 L/min) with a maximum operating pressure of 5000 psi (350 bar). It requires an installation torque of 30-35 lbf ft (41-47 Nm), and its adjustment mechanism allows for up to 5.5 counterclockwise turns from fully closed to open. The valve's hex size is .78 inches (22.2 mm), and it includes an internal hex size of .156 inches (4 mm) for adjustments, along with a locknut hex size of .5625 inches (15 mm) that requires a torque of 80-90 lbf in (9-10 Nm). Weighing .30 lbs (.15 kg), this cartridge is compatible with Viton seal kits like the Sun Hydraulics model number 990010006. Notably, cartridges configured with EPDM seals should only be used in systems utilizing phosphate ester fluids to avoid damage from petroleum-based substances.