Needle valve ( Globle Valve ) is a type of industrial valve that uses a needle-shaped obstacle to control, regulate, or completely stop the flow of fluid. This type of valve is used for continuous flow regulation in systems with low flow rates. The design of needle valves is similar to that of globe valves. All manual instrumentation devices in the piping system are installed along with a needle valve. This valve, by controlling the inlet flow, prevents damage to instrumentation due to sudden pressure increases.