What are the three basic parts of a diaphragm valve?

The three basic parts of a diaphragm valve are the body, bonnet, and diaphragm. The body of the valve houses the internal components and provides flow pathways for the fluid. The bonnet serves to secure the diaphragm in place and provides access for maintenance or adjustments. The diaphragm is a flexible membrane that directly controls the flow of fluid through the valve by moving up or down in response to pressure changes or actuator signals. This structure allows for effective sealing and control, making diaphragm valves particularly suitable for handling corrosive fluids or applications requiring tight shut-off.

Understanding these components is essential for recognizing how diaphragm valves operate, particularly in applications where precise flow control is necessary.