One kind of valve used to precisely regulate the flow of gas or fluid in a system is a needle valve. It features a tiny, tapered plunger that resembles a needle and fits into a conical seat. Operators may precisely control flow by varying the needle's location, which makes it appropriate for low-flow applications where precision is crucial.

A needle valve is used for precise regulation and control of fluid or gas flow in a system. Its design allows for fine adjustments, making it ideal for low-flow applications where accuracy is crucial. Needle valves are commonly employed in instrumentation systems to manage pressure and flow in gauges, sensors, and measuring devices. Their ability to provide a leak-tight seal and handle high-pressure environments makes them valuable in industries such as oil and gas, power plants, pharmaceuticals, and aerospace. By allowing operators to finely tune the flow rate, needle valves contribute to the efficiency, safety, and reliability of industrial and commercial processes.