SUN HYDRAULICS
NFCCHDN

***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 NFCCHDN (NFCCHDN) is a versatile needle valve designed for precise flow regulation in hydraulic systems. This fully adjustable orifice valve allows for infinite adjustments from a completely closed position to the maximum orifice diameter, making it suitable for use as both a flow control and shutoff valve. The NFCCHDN model is not pressure compensated, meaning the flow through the valve is controlled based on the square root of the pressure differential between ports 1 and 2. It features a balanced adjustment mechanism that facilitates easy adjustments even under high-pressure conditions. The design includes a sharp-edged orifice to minimize flow variations due to changes in fluid viscosity, ensuring consistent performance. The valve supports bidirectional flow, with a preferred path from port 1 to port 2 for compatibility with other flow control devices. When fully closed, there is no leakage, providing reliable shutoff capabilities. The NFCCHDN model fits into a Cavity T-13A and belongs to Series 1, capable of handling up to 7 gallons per minute (28 liters per minute) with a capacity of .19 inches (4.8 mm). It can operate at pressures up to 5000 psi (350 bar). For installation, it requires a torque of 30\u201335 lbf-ft (41\u201347 Nm) and has specific hex size requirements for both the valve and locknut adjustments. This needle valve is equipped with EPDM seals specifically designed for use with phosphate ester fluids; exposure to petroleum-based fluids can damage these seals. The model weighs approximately .30 lb (.15 kg) and includes an option for Viton seal kits under cartridge number 990010006.