Automatic Toilet Flusher for Improved Hygiene

There is an increased need for hygiene and cleanliness, especially during pandemic outbreaks. Think about when you visit a public restroom in a shopping mall. You need to engage the toilet flush handle or press the button. Increased usage results in germs and dirtiness. Here is a solution for you.

Automatic Toilet Flusher

Automatic Toilet Flusher

Automatic toilet flushers employ active infrared sensor technology, using the emission and reception of infrared beams to detect the object’s presence and movement or people in their detection field.

Moreover, when the sensor is triggered, the solenoid opens & releases water from the upper chamber, decreasing pressure. High-pressure water from the inlet lifts the diaphragm and travels down the flush pipe. During the flush, some water is forced back into the upper chamber through a small bypass hole in the diaphragm. 

The toilet commode flush continues until the pressure equalizes, pushing the diaphragm down onto the valve seat. Flushometers, or flush valves, are just automatically timed, self-closing valves. At rest, water is at equal pressure in the upper and lower chambers, keeping the piston closed tightly on the valve seat.

Automatic Toilet Flush Components

1. Solenoid toilet flush valve

The valve, an essential component of the flushometer or auto-flush toilet, acts as a switch to open and close the water flow. It opens or closes in response to a signal from the sensor.

The solenoid valve is controlled by the sensor’s positive or negative signals. The solenoid will activate in a pull or push action, depending on the signal’s polarity. The valves use a disc resembling rubber to regulate water flow. The valve is closed when there is no signal, which prevents water from passing through it. When a body moves, the solenoid receives a positive signal, which prompts it to open the valve and let water flow.


The sensor, a crucial component of an automatic toilet flush, functions like an eye to track the movement of items or persons. Its responsibility is to alert the valve to changes in the presence or movement of objects or persons so that it can begin or stop the flow. The sensor comprises two infrared LEDs: one emitting and one receiving infrared beam.

The sensor eye is often positioned on the metal faceplate. Most plates are stainless steel, while some could use less expensive plastic.


The power source, a crucial spare item, is also essential for providing electricity to the electronic components. Three varieties are often available: combination AC/DC, AC power supply, and DC battery.

A DC battery powers the device; 6V 4xAA or 3V 2XAA alkaline batteries are often used. Replacing batteries is simple: open the battery box lid and insert the fresh alkaline batteries inside.

An AC adapter contains a power transformer inside of it. One side connects to the sensor or control box via a power connection, while the other has a waterproof connector. A 110v–380v input and a 6V–9V output are possible. You can purchase the inexpensive AC adapter separately.

How do automatic flush toilets work?

  1. The infrared sensor has infrared LEDs (light-emitting diodes) and detectors like those on TV remote controls. It detects when the user reflects infrared light. 
  2. After the detection, the sensor sends the solenoid valve a pulse signal to open it.
  3. A microchip designs and manages the entire programme. The normal mode flush time is 9 seconds; the water-saving mode uses 4 seconds for flushes under 1 minute and 9 seconds for flushes over 1 minute.

Automatic flush toilets work

Kohler Revolution 360 Flush Technology

Kohler breaks boundaries, so we push the limits of taking flushing power for cleanliness and toilet design to the leading edge. From this is born innovation like our revolution 360 swirls flushing technology. Our most perfect flush yet revolution 360 swirl flushing technology sends water around the entire bolt; its complete coverage leaves nothing behind. Aqua fist and flushing technology is the power behind the flush and packs a punch to a limit clause. Clean coat technology prevents bacteria, mildew, and mineral deposits from sticking, so the bowl stays cleaner longer. We replaced the hard-to-clean base of a traditional toilet with smooth sides, this makes it easier to clean. Our patented ready-lock system makes for an easy installation with no

Drilling is required for toilets. No compromise is required.

Kohler Toilet Flush Valve

Kohler now defines performance as seamlessly blending high-end design with innovative technology and introducing the Aqua piston. This newly designed engine drives the power and flushing performance of our toilets. Engineers designed the Aqua Piston with power and performance in mind, and the power lies in the 3:2 ratio Between the FL canisters, inlet, and outlet. Kohler Engineers achieve top Performance by replicating the natural Arc of water over the edge of a Waterfall Aqua piston sends water rushing into the system from 360° upon actuation, harnessing the force of gravity and delivering Kohler’s most powerful gravity-fed flush. Here, power and performance come together for a high flow rate of water rushing through the system, providing a powerful will flush through the rim and Bowl, resulting in a plug-free, cleaner bowl with no more clogs and enhanced toilet performance. 

Find Kohler Showrooms Near you in Nepal


1. Is a toilet flusher a lever?

In earlier times, you had to move a lever, but nowadays, you have to push the buttons. Moreover, automatic flushers are now available, making it more convenient.

2. What is the toilet flusher thing called?

Toilet bowl flappers control the amount of water that passes from the tank to the bowl during flushing.

3. What is a flush valve?

It is a self-closing device designed to release or control a large water volume when activated, creating a flush.

4. What is an automatic toilet flusher?

Automatic toilet flusher uses active infrared sensor technology to flush water automatically when people leave.

Where to buy