SUN HYDRAULICS
NFDCYAV

***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 NFDCYAV (Material Number: NFDCYAV) is a versatile needle valve designed for precise flow regulation in hydraulic systems. This fully adjustable orifice can be used as a flow control or shutoff valve, offering infinite adjustability from fully closed to its maximum orifice diameter. Not pressure compensated, it regulates flow in proportion to the square root of the pressure differential across ports 1 and 2. The balanced adjustment mechanism ensures easy operation even under high pressures, while the sharp-edged orifice design minimizes flow variations due to viscosity changes. The valve supports bidirectional flow with a preferred path from port 1 to 2 for interchangeability with other flow controls. It guarantees zero leakage when fully closed. The NFDCYAV cartridge is compatible with phosphate ester fluids when configured with EPDM seals but should not be exposed to petroleum-based fluids, which can damage the seals. It fits into a Cavity T-5A Series 2 and has a capacity of 12 gpm (45 L/min) at a maximum operating pressure of 5000 psi (350 bar). The adjustment mechanism allows for up to 5.5 counterclockwise turns from fully closed to open, and the valve's hex size is 1-1/8 inches (28.6 mm), requiring an installation torque of 45-50 lbf ft (61-68 Nm). The internal hex size for the adjustment screw is 5/32 inches (4 mm), while the locknut hex size is 9/16 inches (15 mm), with a torque specification of 80-90 lbf in (9-10 Nm). Weighing just .60 lb (.30 kg), this needle valve is robust yet lightweight, making it suitable for various applications where precise fluid control is essential.