What triggers a solenoid valve?

A solenoid valve is typically triggered by an electrical signal sent to the solenoid coil. When the coil is energized, it creates a magnetic field that pulls a plunger or piston inside the valve, allowing or blocking the flow of fluid or gas through the valve. The electrical signal that triggers the solenoid valve can come from a wide range of sources, including sensors, switches, programmable logic controllers (PLCs), and other control devices.