SUN HYDRAULICS
NCEBYAV

***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 NCEBYAV (Material Number: NCEBYAV) is a needle valve with a reverse flow check, designed to provide precise flow regulation in hydraulic systems. This component allows for infinite adjustment from fully closed to the maximum orifice diameter, making it versatile for various applications requiring controlled fluid flow. The valve features an integral high-capacity check valve that ensures unrestricted flow from port 2 to port 1, although it is not pressure compensated. Notably, all two-port flow control cartridges are interchangeable in terms of physical and functional characteristics, though cartridge extension dimensions may vary. The needle valve's non-compensating nature means that the fixed orifice size regulates flow based on the square root of the pressure differential across ports 1 and 2. It incorporates a balanced adjustment mechanism for easy operation even at high pressures and uses a sharp-edged orifice design to minimize variations due to viscosity changes. The valve is compatible with phosphate ester fluids when equipped with EPDM seals but should not be exposed to petroleum-based fluids. This model utilizes Sun's floating style construction to reduce the risk of internal part binding due to excessive installation torque or machining variations. It fits into cavity T-5A, Series 2, with a capacity of 12 gpm (45 L/min) and can withstand a maximum operating pressure of 5000 psi (350 bar). The maximum valve leakage at 110 SUS (24 cSt) is minimal at 10 drops/min (0.7 cc/min). Additional specifications include an adjustment range of five counterclockwise turns from fully closed to open, a hex size of 1-1/8 inches for installation torque between 45-50 lbf ft, and other specific dimensions for ease of use and maintenance.