The diaphragm valve operates by isolating liquids or gases with a diaphragm and controlling the flow through the valve's opening and closing, thereby regulating and controlling the fluid. When the diaphragm plate is compressed downward, the valve closes, blocking the fluid; conversely, when the diaphragm plate rises, the valve opens, allowing fluid passage. Diaphragm valves offer excellent sealing and control capabilities and can operate normally under high temperatures, high pressures, or corrosive media.