Although the basic function is flow restriction, the fundamental difference between the two is the needle valve controls flow in both directions. Discover the differences between ball valves and needle valves in flow control systems The difference between a flow control and a needle valve is explained the terms flow control and needle valve are often interchanged, resulting in confusion when it comes to product selection.
Needle Valve vs Globe Valve: Which Is Best for Precision Flow Control
Needle valves are utilized in industrial equipment to regulate the flow at rates set at low flow to a final halt
Needle valves are also utilized where precise adjustment of flow is essential or where.
Needle valves are adjustable orifices that restrict flow (speed) in both directions (fig The simplified type has a needle valve knob made integral, and the needle rotates to control flow Meanwhile, the precision type has a needle and knob made separately, and the needle moves directly.