A Venturi valve is a type of flow control device that is used to regulate the flow of a fluid or gas. It is typically used in applications such as water pumps, air compressors, and other systems that require precise control of the flow rate. The valve works by using the Bernoulli principle, which states that as the velocity of a fluid increases, its pressure decreases. The Venturi valve works by creating a constriction in the flow of the fluid or gas, which increases the velocity and reduces the pressure. This creates a pressure differential across the valve, allowing for precise control of the flow rate. The Venturi valve is a simple yet effective device that can be used in a variety of applications. It is an economical and reliable way to control the flow of fluids and gases, making it a popular choice for many industrial and commercial applications.