SUN HYDRAULICS
NCEBOAV

***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 NCEBOAV (Material Number: NCEBOAV) is a needle valve with a reverse-flow check designed to regulate flow through an adjustable orifice. This valve allows for infinite adjustment from fully closed to the maximum orifice diameter, providing precise control over hydraulic flow rates. It features an integral high-capacity check valve that permits unrestricted flow from port 2 to port 1, though it is not pressure compensated. The design includes a balanced adjustment mechanism, facilitating easy adjustments even at high pressures. The sharp-edged orifice minimizes variations in flow due to changes in fluid viscosity. This valve is compatible with phosphate ester fluids when configured with EPDM seals, but these seals should not be exposed to petroleum-based fluids as they may cause damage. The Sun floating style construction helps prevent internal part binding due to excessive installation torque or machining variations. Physically and functionally interchangeable with other 2-port flow control cartridges of the same frame size, it maintains a consistent flow path and cavity dimensions, though cartridge extension dimensions may vary. With a capacity of 12 gpm (45 L/min) and a maximum operating pressure of 5000 psi (350 bar), this model ensures robust performance under demanding conditions. Maximum valve leakage is limited to 10 drops/min at 110 SUS (24 cSt). Installation requires specific torque settings: the valve hex size is 1-1/8 inches (28.6 mm) with an installation torque of 45-50 lbf ft (61-68 Nm). Adjustment requires a number of counterclockwise turns from fully closed to open, using an internal hex size of 5/32 inches (4 mm). The locknut hex size is 9/16 inches (15 mm) with a torque requirement of 80-90 lbf in (9-10 Nm). The model weighs .40 lb (.20 kg), and Viton seal kits are available for maintenance needs.