Needle Valve Stem

A needle valve stem is a component of a needle valve that controls the flow of fluid or gas through the valve. It is a long, slender rod that extends from the valve handle or actuator and connects to the valve disc or plug. When the valve stem is turned or rotated, it moves the disc or plug inside the valve body, either opening or closing the flow passage.

The needle valve stem is designed with a fine, pointed tip that fits into a corresponding seat or orifice in the valve body. This allows for precise control of the flow rate by adjusting the position of the disc or plug relative to the seat. The needle valve stem can be turned in small increments, allowing for fine-tuning of the flow rate.

Needle valves are commonly used in applications where precise control of flow is required, such as in laboratory equipment, medical devices, and industrial processes. The design of the needle valve stem allows for accurate and gradual adjustment of the flow, making it suitable for applications that require precise regulation of fluid or gas flow.