What is a needle valve?

A needle valve is a type of valve that is commonly used to accurately control the flow rate of fluids in a system. It gets its name from the long, needle-like stem that is used to regulate the flow of the fluid passing through the valve.

Needle valves are typically constructed with a tapered, needle-shaped stem that fits into a seat to control the flow of fluid. By gradually turning the handle or knob on the stem, the opening between the needle and seat can be adjusted to allow for precise control over the flow rate.

Needle valves are often used in applications where a fine level of control is required, such as in laboratory equipment, flow meters, and hydraulic systems. They are able to handle a wide range of fluids and can withstand high pressure and temperature conditions.

Overall, needle valves are a versatile and reliable option for controlling the flow of fluids in a system, offering precise control and dependable performance.