We all know how the basic operation of a touchless faucet works. You put your hand under the th faucet, it turns on. Take your hand away, it turns off. It all seems simple enough, however there is some intelligence to each component! Within your touchless faucet, there are four key components: the sensor, the power source, the spout, and the most important part, the solenoid-controlled valve.

The Sensor
One common misconception is that the sensor within touchless faucets are “motion activated.” However, our sensors cannot actually detect motion. Instead, the sensor detects the presence of an object in front of it. So when you place an object, such as your hands in front of a faucet, the sensors use small infrared light that is mounted next to an infrared detector. This light bounces off your skin as you get closer to the faucet, and the signal then turns on the faucet valve when you are within a few centimeters of it.

Solenoid Valve
So the sensor is what activated the solenoid valve within the faucet. The function of the solenoid valve is to push or pull an electromagnetic, depending on the electric polarity. The valve is held shut until the sensor detects an object. This pulls the valve open to allow water flow. When your hands are removed from the reach of the sensor under the faucet, the valve is then pushed down and closed.

Power Source
Because electricity is needed to run the sensor to operate the water valve, a constant power source is needed in the faucet. This power source can come in a few different forms. The first being a dry-cell battery installed into the neck of the faucet that then provides power to the sensor. The other source of power could come from an AC transformer that powers a continuous electric current to hold a solenoid valve open in order for water to flow.

Automatic touchless faucets are a great investment that are not only environmentally sustainable, but also much more hygienic and sanitary than traditional handle faucets. To make the switch over to touchless, head to our online store. https://faucetscanada.ca//shop/