Flowmeter measurement is used in many industries, each with its own unique set of technical needs and limitations, but it can be used in many different ways. A flow meter can be called a flow indicator, flow gauge, liquid meter, but its main job is to measure the flow of something.
There are a lot of places where flow meters are used:

Oxygen Therapy

Oxygen treatment, on the other hand, needs flow meters. A pressure regulator is the first thing you do in the process. This regulator is in charge of the high-pressurized oxygen in the cylinder. A flowmeter is used to measure or change this low pressure. This feature can either be chosen by the user or turned on by the user. Liters per minute, or rpm, is the unit of flow. Some pumps can move up to 25 liters per minute. It's possible to set up flow meters with Thorpe tubes to "flush."

Medicine research

Flow products made by McMillan were used uniquely by a company in California. Lab researchers used flow sensors to make urine flow levels directly linked to prostate problems.

To cool down

During the die casting process, hot things are used. Because of this, cooling solutions are often exposed to very high temperatures. They may get clogged because of their complicated and thin design and the water lines that cool them down. As a result, flow meters management is critical to keep the die temperature at the right level.

To maintain lubricant

 Die lubricants help die last longer, which makes the finished product better. Changes in the die lubricant may cause some problems with temperature. When the die cools, the effects can get stuck in it. As a result, how much lubrication is used is very important. An FD-M flowmeter from Keyence is used to watch this part of the system.

To check the Room's Pressure.

 Different pressures can be reduced by controlling how much air can be taken out and put in an air-conditioned space. In hospitals and labs, positive pressure keeps dangerous chemicals and bacteria from spreading. Overpressure must be kept up at all times in a clean room so that untreated air can't get in there.

Automobile business

 Autoflow meters are used to measure the flow rate of different fluids, like engine coolant, engine oil, and wiper fluid. Flow meters are used to monitor how much fluid a car has and how much it uses. Engineers use flow meters to measure tiny amounts of diesel or gasoline to figure out how much water and fuel are in the mix and keep track of how much they use.

To sum it up

Flow meters are an excellent step to know if you want to know how much water you're using. If you have pipes with flow meters, you can measure how much steam, liquid, or gas is going through them simultaneously. It doesn't say how many people work for them in this description. Meters that show how much water is moving are more common than people think. Many businesses and industries use it, and they need to do so.