What happens when a water heater opens the hot water valve to expel air?

After pouring water into it for the first time, a certain amount of air will be discharged when the hot water outlet is opened, and a small amount of air will occasionally be discharged in the later use, but this phenomenon is rare. As for that safety valve.

In fact, it is a one-way valve.

That is, cold water can only enter the water heater through it, and the hot water in the water heater cannot be returned to the cold water pipe through it, if this small accessory can not do the role of a one-way valve after the problem, and can not buy such an accessory, it is recommended that you do not use this water heater again, because the hot water pressure is greater than the cold water pressure will produce backflow, in this case, the heating pipe in the water heater will always be in a heating state, the water in the cold water pipe will also be warm, and the tap water flowing out of the neighbor's house is lukewarm in serious time.

It should be the safety valve to relieve the pressure!

Reason analysis: This shows that the air in the inner tank of the water heater is not emptied when it is heated and the water valve is closed and heated by electricity, and the internal air expands after heating, and when the internal air pressure is greater than the safety air pressure, the safety pressure relief valve can be heard after the "bang" sound.

Solution: Disconnect the power supply, pull out the outlet valve of the water heater to the high temperature position (be careful that the hot water hurts people), and let the tap water enter the inner tank until the outlet valve comes out smoothly.

If there is still a problem, it means that the water heater is an unqualified product, and the water in the water heater cannot be emptied, and it can be sent to the after-sales service center of Dianmei.

See what the pressure on the pressure relief valve (safety valve) is. There are still megapascals! If the water pressure is too high, the pressure relief valve will automatically drip out to protect the tank from bursting and causing the water leakage!

Pressure relief valves are not difficult to buy!! The key is to choose the right safety pressure! The water in the electric water heater must be drained before it can be reused.

After all, the liner is empty. Waterless heating will damage the electric heating and the inner liner. So you have to go first and then the outlet to exhaust the air to fill the tank!

Heat up normally!

What you're saying is normal, you've finished draining the water, the water heater is empty, and you have to wait for the water to be full of hot water pipes before it can come out properly! If the water heater is empty, you can't turn it on or it won't burn out

Summary. There are several types of cases.

1. If the exhaust valve does not stop flowing, it is necessary to check whether the internal water pressure of the water heater is too high or the exhaust valve is damaged.

2.Occasional dripping. It is normal for the water heater exhaust valve to occasionally drip water, because the water heater is closed for water storage, and the water in the water heater will expand during the heating process, resulting in the occurrence of dripping.

This situation is unavoidable, and if you mind, you can use a hose to connect it to the floor drain and drain the leaked water directly into the sewer.

3.Dripping all the time. If the water heater exhaust valve keeps dripping, it may be that the water pressure in the inner tank of the water heater is too high during the heating process, so it keeps dripping.

You can check whether the exhaust valve is damaged first, if it is damaged, it is recommended to contact the maintenance personnel to repair or replace the exhaust valve with a new one. If the exhaust valve is normal, you can consider installing a pressure reducing valve, which can effectively solve the problem of water dripping from the water heater exhaust valve.

What's going on with the water heater's exhaust valve that keeps flowing?

There are the following situations: 1. If the exhaust valve does not stop flowing, it is necessary to check whether the internal water pressure of the water heater is too high or the exhaust valve is damaged. 2.Occasional dripping.

It is normal for the water heater exhaust valve to occasionally drip water, because the water heater is closed for water storage, and the water in the water heater will expand during the heating process, resulting in the occurrence of dripping. This situation is unavoidable, and if you mind, you can use a hose to connect it to the floor drain and drain the leaked water directly into the sewer. 3.

Dripping all the time. If the exhaust valve of the water heater keeps dripping, it may be that the water pressure in the inner tank of the water heater is too high during the heating process of the free rock, so the guide collapses and the water is dripping all the time. You can check whether the exhaust valve is damaged, if it is damaged, it is recommended to contact the maintenance personnel to repair or replace it with a new exhaust valve.

If the exhaust valve is normal, you can consider installing a pressure reducing valve, which can effectively solve the problem of water dripping from the water heater exhaust valve.

Dear, generally there is more water pressure, and when the pressure is large, he will drain the water there, or the valve is broken

If the water is heated is too high, the pressure in the barrel is too large, and if it is not heated, the pressure relief part is faulty, and it should be replaced.

When there is a gas overflow in the system, the gas will climb up along the pipeline, and finally gather at the highest point of the system, and the exhaust valve is generally installed at the highest point of the system, when the gas enters the valve cavity of the exhaust valve and gathers in the upper part of the exhaust valve, with the increase of gas in the valve, the pressure rises, when the gas pressure is greater than the system pressure, the gas will make the water surface in the cavity fall, and the pontoon will fall with the water level and open the exhaust port; When the gas is exhausted, the water level rises, and the pontoons rise with it, closing the exhaust port.

In the same way, when negative pressure is generated in the system, the water level in the valve cavity drops, and the exhaust port opens, because the outside atmospheric pressure is greater than the system pressure at this time, the atmosphere will enter the system through the exhaust port to prevent the harm of negative pressure.

Therefore, when the pressure in each part of the hot water is too high, the exhaust valve will open and whoever will flow out.

Turn it off and restart it.

I tried asking questions, but it didn't work.

Question: Is it because the gasket inside is aging and broken?

1. The exhaust valve does not stop flowing and you need to check whether the internal water pressure of the water heater is too high or the exhaust valve is damaged. 2. When there is a hidden gas overflow in the system, the gas will climb up along the pipeline, and finally gather at the highest point of the system, and the exhaust valve is generally installed at the highest point of the system, when the gas enters the exhaust valve cavity and gathers in the upper part of the exhaust valve, with the increase of gas in the valve, the pressure rises, when the gas pressure is greater than the system pressure, the gas will make the water surface in the cavity fall, and the pontoon will fall with the water level and open the exhaust port; When the gas is exhausted, the water level rises, and the pontoons rise with it, closing the exhaust port. 3. In the same way, when negative pressure is generated in the system, the water level in the valve cavity drops, and the exhaust port is opened, because the external pressure is greater than the system pressure, the atmosphere will enter the system through the exhaust port to prevent the harm of negative pressure.

Therefore, when the pressure of each hot water is too high, the exhaust valve will be opened, and whoever will flow out.

Dear, according to your description, if it is flowing water in the heated state, this is a very normal phenomenon, because the volume of water expands after heating, and then the water should not flow again. If you have been running water to consider draining stuck, then you need to pull the door wrench a few times to see if you can eliminate this phenomenon, if it doesn't work, it is recommended to replace it. If there is only an occasional water leak, it is normal, because this is called safety discharge, in addition to discharging the air in the water heater, its main function is to be safe.

Everyone knows a common sense: thermal expansion and cold contraction. The tap water at room temperature is injected into the hot water type mountain letter, and when it is filled, the volume of the water will become larger, and the excess water will be safely discharged from this to ensure the safety of the water heater and prevent the water heater from being damaged due to high water pressure. If the water is leaking all the time, it is abnormal, it is recommended to check whether the water pressure is too high, or whether the safety discharge is only known to be damaged.

The easiest way is to drain the water, turn the faucet to the maximum, if the water flow is stable, there is no change in speed and slowness, and there is no sizzling sound, which means that the air is drained and clean. Because if there is air, there is air blockage, which is formed because of the formation of bubbles, and as the water flow accelerates, it will cause irregular vibrations of the water flow, and cause the water flow to be unstable, large and small.

To drain the air from your gas water heater pipe, you can follow these steps:

Open the cold water valve: Make sure the cold water valve is fully open so that the cold water flows into the water heater.

Turn on the water heater switch: Turn on the switch or valve of the gas water heater to make the water heater start working.

Wait for the water heater to vent: When the water heater is first turned on, there may be air coming out. Wait for a while, usually about 1 to 2 minutes, until you hear the water heater expel gas. At this time, you can see some bubbles coming out of the water outlet of the water heater.

Close the exhaust valve: In the process of venting the air from the water heater, there will generally be an exhaust valve. When the gas is exhausted, close the exhaust valve.

Wait for the hot water to flow out: When you can't hear the sound of gas coming out and the water starts to flow out of the water heater, it means that the air in the water heater has been removed. At this point, you can turn on the hot water faucet of your water heater to make sure the hot water flows out properly.

Please note that there may be some water droplets or a small amount of odor released during the exhaust process, which is normal. If you encounter any unusual situations or problems during the operation process, please contact the manufacturer of the gas water heater or professional technician for help in time.

Turn the water heater nozzle and turn it on, you will hear a pop sound in the process of waterproofing, and then turn off the water when the air is finished.

A water heater is a device that turns the temperature of cold water into hot water in a certain period of time through various physical principles. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic energy water heaters, air energy water heaters, heating water heaters, etc.

The air is always moving, even when the wind is not obvious. Indoor air is also flowing, generally in the direction of the dominant wind. The reason why it is not allowed to be discharged indoors is that the exhaust gas of the gas water heater will make the indoor air dirty, which in turn will reduce the quality of combustion and form a vicious circle.

This is the meaning of the outdoor smoke exhaust of a gas water heater.

Nature's capacity is quite large, and the smoke from the water heater's exhaust pipe will spread into the surrounding environment in about a few seconds. Whether or not it will come into your home depends on two factors:

1 Do you have a window open when someone turns on the water heater?

2 The direction of the wind at that time was important. If it's rushing to your window, it's going to flow back into your home.

By the way, to correct a mistake, gas water heaters emit mainly carbon dioxide, carbon monoxide can not be said to be absent, but minimal. Because the mainstream working condition of gas water heaters is aerobic complete combustion.

Normal. Electric water heater.

Normal working water pressure is normal, pressure reducing valve.

It doesn't drain.

The pressure relief valve is one of the most common parts of the storage electric water heater, this pressure reducing valve is designed to reduce the pressure of the inner tank of the water heater, the water will expand when the electric water heater is heated, and it is easy to appear when it expands to a certain pressure and dry capacity, so now the electric water heater will basically have a pressure relief valve, which is also a mandatory provision of the national electric water heater wall, and this part must be available.

If the pressure reducing valve of the water heater is dripping all the time, there are generally two situations, either the pressure reducing valve is damaged and the water is dripping all the time, or the water heater is in a heated state, and the pressure reducing valve of the water heater discharges water in order to reduce the pressure of the inner tank of the water heater, which is a normal phenomenon.

Precautions: 1. When the water heater is not used for a long time, please turn off the external main power switch.

2. When putting on the water, the water outlet must be opened, and the air in the inner tank can be checked to see if the water is full.

3. Regularly remove the residual dirt of the shower and the water trap to ensure the smooth water outlet, and it is helpful to prolong the service life of the water heater.

4. Do not use acidic or alkaline cleaning liquid to scrub the shell of the electric water heater, choose to use neutral cleaning agent when scrubbing, wipe it gently with a damp cloth after wiping, and turn off the power supply of the incoming line when cleaning.

5. The power supply must be cut off before emptying.

6. Do not spray the car branch water to the air switch during use.

or on the fuselage, so that the electrical parts are not damp.