SUN HYDRAULICS
NCEBYBN

***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 NCEBYBN (NCEBYBN) is a versatile needle valve with a reverse flow check, designed for precise flow regulation. This component features an infinitely adjustable orifice, allowing for seamless control from fully closed to the maximum diameter. It includes a high-capacity check valve ensuring unrestricted flow from port 2 to port 1, although it is not pressure compensated. The NCEBYBN model's balanced adjustment mechanism facilitates easy modifications even under high pressure conditions. Its sharp-edged orifice design minimizes variations in flow due to changes in fluid viscosity. With a cavity size of T-5A and a series 2 capacity of 12 gpm (45 L/min), this needle valve operates at a maximum pressure of 5000 psi (350 bar). It maintains minimal leakage at approximately 10 drops per minute at standard oil viscosity levels. The valve's physical dimensions include a hex size of 1-1/8 inches and an installation torque requirement between 45 and 50 lbf ft (61 to 68 Nm). For systems using phosphate ester fluids, EPDM seals are recommended, as exposure to petroleum-based substances can damage these seals. The Sun floating style construction reduces the risk of internal binding due to excessive installation torque or machining variations. This model also includes an adjustment screw with an internal hex size of 5/32 inches and requires a locknut torque between 80 and 90 lbf in (9 to 10 Nm). The compact design weighs approximately .40 lb (.20 kg), making it suitable for various applications requiring precise flow control without compromising on performance or reliability.