Abstract:The needle valve is a valve that controls the flui...
The
needle valve is a valve that controls the fluid passage by adjusting the linear movement of the valve core. Its structure mainly includes valve body, valve core and valve stem. The valve core, usually a slender pin, achieves linear motion up and down by controlling the movement of the valve stem manually or by a driving device. This movement causes the valve core to move up and down in the valve body, thereby adjusting the opening and closing of the channel.
The key design advantage is the elongated shape of the needle valve's spool. Due to the tiny design of the pin tip, small up and down movements can significantly adjust the cross-sectional area of the channel, allowing for extremely precise control of fluid flow. This feature makes needle valves very popular in fields that require high-precision flow control, such as laboratories, instrumentation and other application scenarios.
In short, the working process of the needle valve is that the valve core moves up and down, and the flow of fluid is controlled by adjusting the opening and closing of the channel. Its operation is flexible and the valve core position can be adjusted manually or through the control of a driving device. This allows the operator to easily and accurately adjust the position of the valve core to meet specific flow requirements.
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