In irrigation valve systems, which device is typically actuated by electricity to open or close the valve?

In irrigation valve systems, which device is typically actuated by electricity to open or close the valve?

• A. Electric solenoid diaphragm valve
• B. Manual gate valve
• C. Check valve
• D. Pressure reducing valve

Answer: (A)

Electric actuation in irrigation valves uses an electric solenoid diaphragm valve. When voltage is applied, the solenoid creates a magnetic pull that moves a plunger and lifts the diaphragm, opening the flow path. When the voltage is removed, a spring returns the diaphragm to the closed position. This setup lets a controller energize or de-energize the valve remotely to run individual irrigation zones. The other devices don’t use electrical signals to open or close: a manual gate valve is operated by hand, a check valve prevents backflow and doesn’t control opening with electricity, and a pressure reducing valve changes pressure rather than acting as an on/off control.

Electric actuation in irrigation valves uses an electric solenoid diaphragm valve. When voltage is applied, the solenoid creates a magnetic pull that moves a plunger and lifts the diaphragm, opening the flow path. When the voltage is removed, a spring returns the diaphragm to the closed position. This setup lets a controller energize or de-energize the valve remotely to run individual irrigation zones. The other devices don’t use electrical signals to open or close: a manual gate valve is operated by hand, a check valve prevents backflow and doesn’t control opening with electricity, and a pressure reducing valve changes pressure rather than acting as an on/off control.