SUN HYDRAULICS
NCGCHAV

***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 NCGCHAV (NCGCHAV) is a needle valve featuring a reverse-flow check, designed to regulate flow with precise adjustability. This valve allows for infinite adjustment from fully closed to the maximum orifice diameter, offering versatile flow control capabilities. It includes an integral high-capacity check valve that ensures unrestricted flow from port 2 to port 1, although it is not pressure compensated. The needle valve's non-compensating nature means the orifice size regulates flow proportionally to the square root of the pressure differential across ports 1 and 2. The balanced adjustment mechanism facilitates easy adjustments even under high pressures, while the sharp-edged orifice design minimizes flow variations due to viscosity changes. The floating style construction reduces the risk of internal parts binding caused by excessive installation torque or machining variations. This cartridge is physically and functionally interchangeable with other 2-port flow control cartridges of the same frame size but may have varying extension dimensions from the mounting surface. The NCGCHAV fits into a Cavity T-18A, Series 4, with a capacity of up to 30 gpm (120 L/min), and can withstand a maximum operating pressure of 5000 psi (350 bar). It has minimal leakage rates of up to 5 drops/min at standard fluid viscosities and features an adjustable screw with an internal hex size of 5/32 inches for fine-tuning. For installation, it requires a torque range between 350 - 375 lbf ft (474 - 508 Nm). This model weighs approximately 3.00 lb (1.35 kg) and comes with a Viton seal kit option for enhanced durability in various applications.