Needle Valve Needle valves are precision devices used to control fluid flow. They consist of a tapered needle-like plunger that fits into a seat within the valve body, The plunger is connected to a handle, allowing manual adjustment. Turning the handle moves the plunger up or down through a threaded mechanism, altering the orifice size and fluid flow. Needle valves are commonly used for flow regulation, pressure control, and instrumentation. Their tapered design enables fine adjustments, making

*Types of Valves* - *1. Gate Valve*: - *Function*: On/off control, minimal flow restriction. - *Use*: Isolation, frequent operation. - *2. Globe Valve*: - *Function*: Regulating flow, precise control. - *Use*: Throttling, controlling flow rate. - *3. Ball Valve*: - *Function*: On/off control, quarter-turn operation. - *Use*: Quick shut-off, frequent operation. - *4. Butterfly Valve*: - *Function*: Regulating flow, low pressure drop. - *Use*: Large pipe sizes, low-pressure applications. - *5. Che