SUN HYDRAULICS
NCECKAV

***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 NCECKAV (Material Number: NCECKAV) is a needle valve with a reverse-flow check, designed to provide fully adjustable orifices for precise flow regulation. This particular model allows infinite adjustment from fully closed to the maximum orifice diameter, offering an integral high-capacity check valve that permits unrestricted flow from port 2 to port 1. Notably, this valve is not pressure compensated. It features a balanced adjustment mechanism for easy adjustments even under high pressures and a sharp-edged orifice design that minimizes flow variations due to changes in viscosity. The floating style construction reduces the risk of internal parts binding due to excessive installation torque or machining variations. This model fits into the T-5A cavity and belongs to Series 2 with a capacity of 3 gpm (11 L/min) at .13 inches (3.3 mm). It can operate at a maximum pressure of 5000 psi (350 bar), with a maximum valve leakage rate of 5 drops per minute at 110 SUS (24 cSt). The adjustment from fully closed to fully open requires approximately five counterclockwise turns. The valve has a hex size of 1-1/8 inches (28.6 mm) and should be installed with a torque between 45 - 50 lbf-ft (61 - 68 Nm). The internal hex size for the adjustment screw is 5/32 inches (4 mm), while the locknut has a hex size of 9/16 inches (15 mm) and should be torqued between 80 - 90 lbf-in (9 -10 Nm). Weighing in at .40 lb (.20 kg), it utilizes Viton seals, specifically seal kit number: 990203006, ensuring reliable performance in various applications.