caption: The image shows a drawing of a machine with a white background. It is a diagram of a valve, which is a type of valve used to control the flow of liquids or gases in a system. The valve is composed of a metal frame with a handle on one side and a lever on the other, and is connected to a series of pipes and valves. The handle is used to open and close the valve, and the lever is used for controlling the flow rate. The diagram also shows the various components of the valve and how they interact with each other.