SUN HYDRAULICS
NCECHCV

***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 NCECHCV (Material Number: NCECHCV) is a needle valve with a reverse flow check, designed to provide precise flow regulation through its fully adjustable orifice. This component is equipped with an integral high-capacity check valve that allows unrestricted flow from port 2 to port 1, though it is not pressure compensated. The needle valve is infinitely adjustable from fully closed to the maximum orifice diameter, making it suitable for applications requiring precise flow control. It features a balanced adjustment mechanism for easy tuning even under high pressures and employs a sharp-edged orifice design to minimize flow variations due to viscosity changes. The NCECHCV model incorporates Sun's floating style construction, which reduces the risk of internal part binding caused by excessive installation torque or machining variations in the cavity/cartridge. It fits into a T-5A cavity and belongs to Series 2, offering a capacity of 3 gpm (11 L/min) at a maximum operating pressure of 5000 psi (350 bar). The valve ensures minimal leakage with a maximum rate of 5 drops/minute at 110 SUS (24 cSt). Adjustment from fully closed to fully open requires approximately 5.5 counterclockwise turns. For installation, the valve has specific torque requirements: the valve hex size is 1-1/8 inch with an installation torque between 45-50 lbf ft (61-68 Nm), while the locknut requires a torque of 80-90 lbf in (9-10 Nm). The adjustment screw uses an internal hex size of 5/32 inch. This model weighs approximately .40 lb (.20 kg) and comes with Viton seal kit option number 990203006 for reliable sealing performance.