A touchless faucet is a magic faucet. It really is a technological marvel. You will be amazed when you know how touchless faucets work.

Automatic kitchen faucets or touchless faucets are convenient and enhance hygiene. Read on for more details on touchless faucets.

What is a touchless faucet?
Touchless faucets use active infrared sensor technology that allows you to initiate water flow without touching the faucet. Instead, just put your hand in front of the sensor to start the water flow, and when you remove your hand, the water will stop. What's even more exciting is that most touchless faucets are designed to be sleek and elegant, and fit in any vanity, sink or restroom, from classic to modern.

5 parts of an touchless sensor motion faucet

Touchless faucets use active infrared sensor technology that allows you to initiate water flow without touching the faucet. Instead, just put your hand in front of the sensor to start the water flow, and when you remove your hand, the water will stop. What's even more exciting is that most touchless faucets are designed to be sleek and elegant, and fit in any vanity, sink or restroom, from classic to modern.

1. Sensor Unit

As the most important part, the sensor's job is to relay the signal to the valve to open the faucet when it detects your hand. Its job is to tell the valve when to start or stop flow, depending on the presence or absence of the hand. It has infrared or ultrasonic sensors. In most cases, the infrared sensor is usually placed on top of the spout.

So what about infrared light and ultrasonic field sensors? When your hand is close to the spout, infrared light is reflected to the infrared detector. The valve will immediately receive a positive signal to open the faucet. in ultrasonic field sensors. When your hand moves to interfere with the sensor, water flows from the faucet. In the same way, when you lift the blockade, the flow stops.

Active infrared non-contact sensors use the emission and reception of infrared beams to detect the presence and/or movement of objects or people within their detection area. This technology is ideal for applications that require long, narrow detection ranges.

A microwave sensor or Doppler sensor detects motion within its detection range by the frequency of the electromagnetic microwaves it emits. Even if the sensors are behind solid materials, they can detect from several meters away.

However, infrared sensor touchless faucets are the most common type on the market.

2. Solenoid Valve
The positive or negative signal from the sensor controls the solenoid valve. The polarity of the signal determines whether the solenoid will perform a pull or push action. These valves control the flow of water by using a rubber-like disc. When there is no signal, the valve closes, which means no water is flowing through the faucet. If there is a hand, a positive signal will be sent to the solenoid, causing it to pull the valve, causing the water to flow open. When the hand is out, the solenoid valve will close the valve with a push action.

3. Power Source

Every touchless or automatic faucet requires a power source to work, although power sources can vary. Some models of faucets are powered by dry batteries, while others use low voltage current from an AC transformer.

There are usually three options: DC 6V: 4xAA alkaline batteries; AC: use a transformer to transfer power from 220V/380V to 6V; both DC/AC models exist, first work with AC power, if AC power is not available, DC The power supply starts to work. Some contactless faucets may use DC 3V or Lithium batteries.

4. Faucet Spouts

All other parts of the automatic touch faucet are located inside the spout. They have different materials. Expensive models are usually made of brass. The cheapest is zinc material.

Most manufacturers usually cover faucets with chrome or nickel. This is to enhance its appearance and durability.

You will find different styles of spouts. They usually match your kitchen equipment and lifestyle. Faucets are something that will make your visitors want to spend more time in your kitchen. Therefore, you should also pay more attention to the surface and shape of the spout.

5. Waterproof Connecting Cable

As a key component, the waterproof connector cable connects each subsection like a bridge, connecting the sensor to the solenoid valve, power battery or AC adapter. At the same time, taking into account the humidity of the bathroom and toilet environment, there are high requirements for the electronic control system and each electronic component. In order to solve this problem, Koge has developed and designed a plug-and-pull waterproof connection cable. It effectively improves the stability and reliability of the entire control system, and prolongs the service life of non-contact faucets, automatic urinal flushers, and automatic toilet flushers. The waterproof rating of the cable reaches ip67.

How does an motion activated sensor faucet work?

After covering the five key components, I'll give you an idea of how a touchless kitchen faucet works.

1. When the presence sensor detects anything underneath, the sensor will signal the solenoid to let the water out. However, once the presence sensor detects that the object is not present, it will instruct the solenoid valve to stop the water flow after a fixed amount of time. On the other hand, some advanced faucet models have an ultrasonic field sensor that commands the valve to initiate water flow when the ultrasonic field is interrupted by your hand.
2. Typically, solenoid actuated diaphragm valves are used to start and stop water flow.
3. The nozzle is fitted with a fiber optic cable that connects it to the status sensor. The state sensor then transmits the signal through the fiber. On some models, the spout may also include a battery.
4. The waterproof connector acts as a bridge to connect the sensor, battery and solenoid valve.
   

Simply, when a presence sensor or light sensor detects an object, it allows a solenoid valve that pulls the valve to start water flow. If it doesn't detect the same thing or anything in front of it, it commands the solenoid to stop the water flow by pushing the valve after some time (about 30 seconds).

Lastly

Touchless faucets are becoming increasingly popular in modern homes around the world. Surprisingly, now you'll find a lot of people interested in how touchless faucets work. This is because these faucets are easy to use, and they also look beautiful and hygienic. Because JVK INC focus on faucet manufacturing since 2000, our China sutomatic sensor faucet is good quality.