How does the solenoid valves and control boards work in a touchless bathroom faucets?
The solenoid valves and control boards work together to provide a touchless and hygienic way to control the flow of water in a bathroom faucet. Touchless bathroom faucets typically use solenoid valves and control boards to control the flow of water without requiring physical contact. Here is a general overview of how these components work:
Solenoid valves: These are electromechanical devices that are typically made up of a coil of wire and a movable plunger or piston. When an electrical current is passed through the coil, it creates a magnetic field that pulls the plunger or piston in one direction, opening a valve and allowing water to flow through. When the current is turned off, a spring or other mechanism returns the plunger or piston to its original position, closing the valve and stopping the flow of water.
In touchless bathroom faucets, the solenoid valves are typically located in the water supply lines leading to the faucet. The control board sends an electrical signal to the valve to open or close the valve, allowing water to flow when the user's hands are detected by the faucet's sensors.
Control board: This is the electronic component that controls the operation of the solenoid valves and other aspects of the touchless faucet. The control board typically includes a
microprocessor, sensors, and other circuitry that allow it to detect when the user's hands are present and activate the solenoid valves accordingly.
When a user places their hands under the faucet's sensor, the control board sends a signal to the solenoid valve to open and allow water to flow. The control board may also include settings for adjusting the flow rate and temperature of the water, as well as timers and other features to conserve water and prevent vandalism.