What is the cause of water leakage in the pressure relief valve of the water heater

If the safety valve drips as soon as it is heated, there are two possibilities: one is that the pressure relief value of the safety valve is small, and the pressure relief value can be replaced with a larger one. However, it should not be higher than times the rated pressure of the water heater.

Second, the tap water pressure is too high. At this point, a hose can be connected to the pressure relief port and led to the floor drain. Do not block the pressure relief port when the safety valve is dripping, otherwise it may be damaged due to excessive pressure in the inner tank.

It is normal for the pressure relief valve to leak during hot water heating or when the tap water pressure is too high. When the storage electric water heater heats hot water, the water in the inner tank of the water heater and a small amount of residual air are heated by the volume expanding, and the pressure in the inner tank of the whole water heater rises.

In order to ensure that the pressure relief valve can work normally, the water heater should be drained and cleaned for about 1 year, the operation of the pressure relief valve should be checked, and it should be removed and cleaned if necessary.

The pressure of the tap water should be checked, if the tap water pressure exceeds 0.6 MPa, it is normal for the pressure relief valve to leak; If the tap water pressure is much lower than 0.6 megapascals, and the pressure relief valve is still leaking, it should be that there is a problem with the pressure relief valve.

1.If the temperature is above 80 degrees, or higher, the pressure inside the electric water heater is too high, which is easy to cause leakage of the pressure relief valve.

2.The high cold water pressure of the electric water heater will also cause the pressure relief valve to leak, so you can turn off the cold water valve (inlet valve) of the electric water heater a little smaller. Recently, it has been found that the pressure of tap water has increased significantly, which may be due to the renovation of the urban pipe network.

3.The pressure relief valve of the electric water heater itself is broken, or the rubber gasket inside is broken. You can test it first, when the water is leaking, close the small water inlet valve, open the big faucet, reduce the pressure of the water heater, and see if the water leaks.

If there is no leakage, it means that the safety valve is normal, and the internal pressure is high and the water leakage is formed; If the water continues to leak, it is convenient to repair or replace the valve.

The treatment method of the pressure relief valve of the heat leakage shirt water device has been leaking:

1. You can close the water inlet valve, adjust the mixing valve to the high temperature and open it, so that the water drips out of the shower, or you can open the hot water valve to relieve the pressure of the silver, if you really can't control the leakage, it is recommended to install a pressure reducing valve.

2. When heating, the water will expand, and the safety valve will release the pressure when the volume becomes larger, and we can use a plastic leather pipe to direct the dripping water to other places.

3. Since the safety rebate valve is already under pressure, if the water leakage is obvious, you can consider replacing a safety valve.

The function of the pressure relief valve of the water heater:

1. The role of pressure discharge. When the electric water heater is plugged in, the internal water pressure is large when it is working, and the pressure relief valve comes into play. Unnecessary stress can be eliminated in time to ensure the safety of our use.

2. The effect of preventing water flow. When the water heater is working, make sure that there is enough water stored in it. If there is no water, dryness will occur, which is very dangerous and easy**. It can effectively prevent the occurrence of such accidents and avoid water flow.

3. Improve the life of the electric water heater. Increasing the service life of the water heater and protecting the inner wall of the water heater can prolong the life of the inner wall.

It may be a leak caused by an increase in water pressure in the inlet pipe. In this case, you can close the inlet valve first and adjust the mixing valve to a high temperature to solve the water leakage problem. If the water heater is not equipped with a mixing valve, you need to loosen the hot water valve and release the pressure slowly, which can also alleviate the problem of leakage, or add a pressure reducing valve to fill the leakage.

1. No water leakage during heating: If the water pressure at home is relatively low, the water flowing into the water heater will carry fewer bubbles each time, and the pressure will be relatively low when heating. Only when the pressure exceeds MPA (megapascals) will the safety valve drip and relieve the pressure, not every time it is heated, so this is normal.

2. Water leakage during heating: When heating starts, the electric water heater will not leak. Only when the water pressure in the inner tank of the water heater is greater than 6MPa, resulting in excessive pressure on the inner tank, the safety valve will automatically leak and relieve the pressure, so as to avoid excessive pressure and damage to the inner tank.

So in this case, it is normal for the safety valve to drip slowly, and it is not a quality problem of the water heater. This also reminds the user that when using the water heater, the inlet pressure should not be too high, so as to avoid serious dripping of the safety valve. Workaround:

Close the water inlet valve, and turn the knob of the mixing valve to the high temperature to open to avoid the leakage of the one-way safety valve and make the water drip out of the shower; If you don't have a mixing valve installed, you can slightly open the hot water outlet valve to relieve pressure to avoid leakage of the one-way safety valve. If it is not possible to control the dripping phenomenon of the safety valve in the future, it is recommended to install a pressure reducing valve before the safety valve. 3. Water leakage when not heated:

If this is the case, one reason is that the cold water pressure added to the electric water heater is greater than the jump pressure of the safety valve, so even if the safety valve is not heated, the water will drip out, especially during the low peak period of water use in the middle of the night, and the pressure of the municipal water network is higher, which is more obvious. Solution: The user can install a pressure reducing valve on the water pipe to reduce the tap water pressure of the municipal water network from high pressure to a suitable pressure, generally 3bar, which can ensure that the water pressure of the whole home is not overpressurized, and can achieve a good water-saving effect; If the cold water pressure is not high and drops, the safety valve may be damaged.

It is recommended to replace the Italian or safety valve with the highest quality.

Reasons: 1. The pressure relief value of the safety valve is small, and the pressure relief value can be replaced with a larger one, but it cannot be higher than the rated pressure of the water heater; 2. If the tap water pressure is too high, a hose can be connected to the pressure relief port and led to the floor drain. Do not block the pressure relief port when the safety valve drips dry, otherwise it may be damaged due to excessive pressure of the inner tank.

Causes and solutions for water heater pressure relief valve leakage:

1. The pressure relief value of the safety valve is small, and the pressure relief value can be replaced with a larger one. However, it should not be higher than times the rated pressure of the water heater.

2. The tap water pressure is too high. At this point, a hose can be connected to the pressure relief port and led to the floor drain. Do not block the pressure relief port when the safety valve is dripping, otherwise it may be damaged due to the high pressure of the inner tank.

It may be a leak caused by an increase in water pressure in the inlet pipe. In this case, you can close the water inlet valve first and adjust the mixing valve to high temperature to solve the water leakage problem. If the water heater does not have a mixing valve installed, you need to loosen the hot water valve and slowly relieve the pressure so that the leak can also be mitigated, or add a pressure reducing valve to fix the leak.

1. Before interior decoration, the floor area of the water heater should be considered, only the water heater socket should be installed, and the water heater is an electrical appliance with relatively large power and must be grounded. Otherwise, let the host connect to the ground cable, as it is easy to cause security problems when used in the future.

2. When installing a water heater in the kitchen, one end needs to be connected to the safety valve, and the pressure reducing port inside the safety valve is connected to the atmosphere, and at the same time, another conduit is connected to the floor to flow away. This can ensure that the water pressure of the water heater can flow out and ensure the safety of the water heater.

3. The area where the water heater is installed should also be considered clearly, under normal circumstances, the water heater is installed at the kitchen outlet to ensure sufficient safety, and should not be installed in the shower room of the bathroom. Otherwise, there is a danger of failure in the event of a failure, which may cause unnecessary problems.

4. If you want to use the pressure reducing valve of the water heater, it can be opened directly, and if the pressure in the water tank is relatively large, it can be used as a pressure reducing valve. In addition, when the internal pressure of the water heater is higher, the pressure relief valve device will initiate the program pressure relief to allow water to flow out of the pressure relief port.

The water heater can be said to be an indispensable electrical appliance in every family, it is not only easy to use, but also easy to operate, so due to the use of too long, there will be some failures. Let's introduce to you how to solve the leakage of the pressure relief valve of the water heater.

1. Water comes out of the small hole of the safety valve.

Cause Analysis and Repair:

When using a water heater, if the water pressure is too high, a small amount of water will come out, and its thermostat will be damaged, and it will be heating all the time.

In this case, a pressure reducing valve can be installed at the inlet of the Pecha water heater.

2. Water heater mixing valve leakage.

Cause Analysis and Repair:

Since the mixing valve is damaged, it is enough to replace the mixing valve of the water heater with a new one.

3. The magnetization thermostat of the water heater is leaking.

Cause Analysis and Repair:

The thermostat in the water heater acts as a means of reducing the flow of water from the sprinklers, and if the magnetic ring thermostat is leaking, it can be replaced.

Precautions for using water heaters.

1. Open the window.

If the gas pipeline is not old and the installation time is not long, the safety factor will be higher in this case, and it is okay not to open the window.

2. Inspect the water heater regularly.

After using it for some time, you need to check whether the circuit is normal, see if there is any gas exposure, and you can prepare in advance.

3. The power supply of the water heater is cut off.

When taking a bath, the humidity of the bathroom will be relatively high, and if the water heater is old, it is prone to electric shock. In order to be safer to use, it is best to turn off the power supply and take a bath.

4. Clean the inner tank of the water heater regularly.

After being used for a long time, then its inner tank will have a lot of limescale, which will affect its heating effect, regular cleaning, and the use of the water heater can be extended.

5. Do not use in thunderstorms.

In the event of a thunderstorm, it is best to turn off the power to all electrical appliances.

6. If it is not used for a long time, the water will be emptied.

If you go out for a long time, be sure to cut off the power supply, and remember to drain the water inside, which is also good for electrical appliances.

Summary: How to solve the leakage of the pressure relief valve of the water heater is introduced here, first of all, after finding the cause, it is not possible to deal with it. If you want to know more about related knowledge, you can consult Qijia.com.