SUN HYDRAULICS
NFECHEV

***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 NFECHEV (Material Number: NFECHEV) 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 for use as both a flow control and shutoff valve. The valve is not pressure compensated, meaning that the flow regulation is proportional to the square root of the pressure differential across ports 1 and 2. It features a balanced adjustment mechanism that ensures easy operation even under high pressures, while the sharp-edged orifice design minimizes variations due to changes in fluid viscosity. The NFECHEV model is bidirectional, with the preferred flow path from port 1 to port 2, allowing for interchangeability with other flow control devices. It ensures zero leakage when turned to the shutoff position. The cartridge is compatible with systems using phosphate ester fluids when equipped with EPDM seals; however, exposure to petroleum-based fluids will damage these seals. This model fits into a Cavity T-16A Series 3 and has a capacity of up to 30 gpm (120 L/min) at a maximum operating pressure of 5000 psi (350 bar). The valve's dimensions include a hex size of 1-1/4 inches (31.8 mm) and requires an installation torque of 150-160 lbf ft (203-217 Nm). The adjustment screw has an internal hex size of 5/32 inches (4 mm), while the locknut hex size is 9/16 inches (15 mm) with a torque requirement of 80-90 lbf in (9-10 Nm). Weighing approximately 1.30 lb (0.60 kg), this needle valve offers reliable performance in demanding applications where precise fluid control is essential.