SUN HYDRAULICS
NCECHBV

***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 NCECHBV (NCECHBV) is a needle valve with reverse-flow check designed for precise flow regulation in hydraulic systems. This component is fully adjustable, allowing users to control flow from fully closed to the maximum orifice diameter. It features an integral high-capacity check valve that ensures unrestricted flow from port 2 to port 1, although it is not pressure compensated. The valve's design allows for easy adjustment even under high pressures, thanks to its balanced adjustment mechanism. It incorporates a sharp-edged orifice design that minimizes variations in flow due to changes in fluid viscosity. This model also utilizes Sun's floating style construction, which reduces the risk of internal parts binding due to excessive installation torque or machining variations. The NCECHBV is part of the Series 2 valves and fits into cavity T-5A. It has a capacity of 3 gpm (11 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The valve exhibits minimal leakage, with a maximum of 5 drops per minute at 110 SUS (24 cSt). The adjustment range spans 5.5 counterclockwise turns from fully closed to fully open. Installation requires a torque between 45 and 50 lbf ft (61 \u2013 68 Nm), and the locknut must be torqued between 80 and 90 lbf in (9 \u2013 10 Nm). The valve weighs approximately .40 lb (.20 kg) and uses Viton seals with part number 990203006 for maintenance purposes.