SUN HYDRAULICS
NCECOAN

***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 NCECOAN (NCECOAN) is a needle valve with reverse flow check, designed to provide fully adjustable flow regulation. It allows for infinite adjustability from fully closed to the maximum orifice diameter, making it suitable for various applications requiring precise flow control. This model features an integral high-capacity check valve that ensures unrestricted flow from port 2 to port 1 but is not pressure compensated. The cartridges are interchangeable with other 2-port flow control cartridges of the same frame size, although extension dimensions may vary. Due to its non-compensating nature, the fixed orifice size regulates flow based on the square root of the pressure differential across ports 1 and 2. The valve incorporates a balanced adjustment mechanism for easy adjustments even under high pressures and utilizes a sharp-edged orifice design to minimize variations due to viscosity changes. Additionally, it features Sun's floating style construction, which reduces the risk of internal binding caused by excessive installation torque or machining variations. Specifications include a cavity T-5A series with a capacity of 3 gpm (11 L/min) and a maximum operating pressure of 5000 psi (350 bar). The maximum leakage at 110 SUS (24 cSt) is limited to 5 drops/minute (0.3 cc/min). The adjustment range spans up to 5.5 counterclockwise turns from fully closed to open. Installation requires a torque of 45-50 lbf ft (61-68 Nm), while the locknut requires a torque of 80-90 lbf in (9-10 Nm). The model weighs approximately .40 lb (.20 kg) and uses Viton seal kits identified by cartridge number 990203006.