SUN HYDRAULICS
NFECYEN

***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 NFECYEN (NFECYEN) is a versatile needle valve designed for precise flow regulation in hydraulic systems. As a fully adjustable orifice, it allows for infinite adjustment from fully closed to the maximum orifice diameter, making it suitable for applications requiring variable flow control or complete shutoff. This model is not pressure compensated, meaning that the flow rate is proportional to the square root of the pressure differential between ports 1 and 2. The NFECYEN's bidirectional flow path offers flexibility, although the preferred direction is from port 1 to port 2 for compatibility with other flow controls. Featuring a balanced adjustment mechanism, this needle valve provides easy and smooth adjustments even under high-pressure conditions. The sharp-edged orifice design ensures minimal flow variations due to changes in fluid viscosity. With no leakage when fully closed, it guarantees reliable performance in demanding environments. The valve fits into a Cavity T-16A and supports a maximum capacity of 30 gpm (120 L/min) with an operating pressure of up to 5000 psi (350 bar). Installation requires a torque of 150 to 160 lbf-ft (203 to 217 Nm), and it includes an internal hex size adjustment screw for fine-tuning. The Sun Hydraulics NFECYEN comes equipped with EPDM seals specifically intended for systems using phosphate ester fluids; however, exposure to petroleum-based substances should be avoided as it can damage these seals. For maintenance or replacement needs, Viton seal kits are available under part number 990016006. This product weighs approximately 1.30 lb (0.60 kg), ensuring ease of handling during installation and maintenance processes.