SUN HYDRAULICS
NCEBYCV

***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 NCEBYCV (NCEBYCV) is a versatile needle valve with a reverse flow check designed to regulate flow through an adjustable orifice. It allows for infinite adjustment from fully closed to the maximum orifice diameter, making it suitable for applications requiring precise flow control. The valve features an integral high-capacity check valve that permits unrestricted flow from port 2 to port 1, although it is not pressure compensated. This model is part of Sun's 2-port flow control cartridges, which are interchangeable in terms of flow path and cavity size but may vary in cartridge extension dimensions from the mounting surface. The NCEBYCV incorporates a balanced adjustment mechanism for easy handling even under high pressures and utilizes a sharp-edged orifice design to minimize variations caused by changes in fluid viscosity. The floating style construction reduces the risk of internal binding due to excessive torque or machining variations. This model supports capacities up to 12 gpm (45 L/min) and can withstand maximum operating pressures of 5000 psi (350 bar). Its leakage rate at 110 SUS (24 cSt) is minimal, at only ten drops per minute. For systems using phosphate ester fluids, cartridges configured with EPDM seals are recommended; however, these seals should not be exposed to petroleum-based fluids as they may incur damage. Installation specifics include a valve hex size of 1-1/8 inches (28.6 mm), requiring an installation torque of 45-50 lbf ft (61-68 Nm). The adjustment screw has an internal hex size of 5/32 inches (4 mm), while the locknut hex size is 9/16 inches (15 mm) with a torque requirement between 80-90 lbf in (9-10 Nm). The model weighs approximately .40 lb (.20 kg) and can be fitted with Viton seal kits for enhanced durability.