The installation position of the household make up exhaust check valve

As follows:

1. Check valve.

It is an important part to prevent the water from flowing back, and it is generally installed at the position of the water outlet, before and after the control valve of the water switch, so as to prevent the water from flowing back when it flows out.

2. It is also necessary to divide the direction of the water flow and the check door of the check valve, the direction of the check valve is generally to connect one end of the check door with the water pipe along the direction of the water flow, and the other end is facing outward, so that the check valve can also effectively prevent the backflow of the water flow.

Precautions for check valve installation.

1. The check valve is a one-way valve that prevents the water flow from flowing back, so before installation, it is necessary to observe the direction of the water flow, distinguish the check door, and find the outlet position of the water flow to install, so as to make the check valve play a better role.

2. The bearing capacity of the check valve is not strong, so you can't put heavier things on the command valve. Moreover, in the process of preventing the water from flowing back, the check valve will also bear a force caused by the water flow, so that the pressure of the check valve is greater, so it is necessary to pay attention to the protection of the check valve at ordinary times and not to damage it.

3. When installing the check valve, it is necessary to pay attention to the connection of the water pipe, and the water pipe can not be damaged, otherwise the water pipe will be damaged and the water pipe needs to be replaced.

4. After the installation of the check valve is completed, it must be tested to see if it works properly. If it doesn't work properly, you need to re-install it.

The submersible pump is connected to the water supply without tower, because the pressure tank mouth has a check valve, after the water is pumped, the water in the pipeline between the check valve and the pump is not returned to the well due to the air pressure, but has been in the water pipe, the pump body of the water pump has been in a high pressure state, which has an impact on the life of the water pump, and the instantaneous pressure when the next water pump starts, because the pipeline pressure has always existed, the bearing in the water pump is very impactful, it is easy to scatter the bearing, if a gas supply valve is installed in front of the pressure tank, it is not the same, after the water, the check valve is closedWhen the air supply valve is opened, the air enters, and the water returns to the well due to the drop, and the water pipe and pump body are in a pressure-free state, and the life of the pump will be greatly increased. Therefore, the submersible pump without tower water supply must be connected to the air valve, which is basic common sense.

1. The exhaust valve must be installed vertically, that is, the pontoon inside it must be in a vertical state, so as not to affect the exhaust.

2. When the exhaust valve is installed, it is best to install it together with the isolation valve, so that when the exhaust valve needs to be removed for maintenance, the system can be sealed and the water will not flow out. The quick vent valve is generally installed at the highest point of the system to improve the exhaust efficiency.

When there is gas generated in the system, because the density of the gas is smaller than that of water, the gas will go up the pipeline and eventually gather at the high point of the system, so the automatic exhaust valve is generally installed at the high point of the system, where the exhaust efficiency of the automatic exhaust valve is the highest.

When the gas enters the cavity of the automatic exhaust valve and gathers in the upper part of the automatic exhaust valve, the gas pressure rises as the gas in the valve increases. When the gas pressure is greater than the system pressure, the gas will make the water surface in the cavity drop, the buoy will drop with the water level, and the exhaust port will open and start exhausting; As the gas is discharged, the air pressure decreases, the water level rises, the pontoon rises with it, and the exhaust port closes.

During the operation of HVAC systems and HVAC systems, many adverse effects caused by the release of water such as hydrogen and oxygen during heating can damage the system and reduce thermal effects. If these gases are not discharged in time, there will be many undesirable consequences. 。

Next, we will take you through how to install an automatic exhaust valve.

Automatic exhaust valve installation method.

When there is gas in the system, the gas will climb up the pipe and eventually collect at the highest point of the system, whereas the exhaust valve is usually installed at the highest point of the system. System. When gas enters the vent valve cavity, it collects in the upper part of the vent valve.

As the gas in the valve increases, the pressure increases. When the gas pressure is greater than the system pressure, the gas will lower the water surface in the cavity hail car girder chamber and the float will drop with the water level. Exhaust outlets.

After the gas is discharged, the water level rises and the float rises, closing the exhaust port. Similarly, when negative pressure is generated in the system, the water level in the valve chamber drops and the exhaust port opens. Since the external atmospheric pressure is greater than the system pressure at this time, the atmosphere enters the system through the exhaust port to prevent the danger of negative pressure.

If the bonnet on the exhaust valve body is tightened, the exhaust valve stops venting. In general, the hood should be open.

Installation method: 1. The automatic exhaust valve must be installed vertically, that is, the internal buoy must be in a vertical state, so as not to affect the exhaust;

2. It is better to install an automatic exhaust valve. Install a shut-off valve, when the exhaust valve needs to be dismantled for maintenance, the system can be sealed and the water will not flow out;

3. The automatic exhaust valve is generally installed at the highest point of the system, which is conducive to improving the exhaust. Gas efficiency.

Automatic exhaust valve installation method.

You can get it for free

The exhaust valve is generally installed directly above the flow pipe and installed vertically.

Exhaust valves are used in independent heating systems, central heating systems, heating pots, air conditioners, floor heating and solar heating systems.

Because there is usually a certain amount of air dissolved in water, and the solubility of air decreases with the increase of temperature, so that the gas is gradually separated from the water in the process of water circulation, and gradually gathers together to form large bubbles or even air columns, because there is a supplement of water, so there are often gases produced.

Exhaust valve, as the name suggests, is of course used to exhaust gas, normally, in the process of flowing through the pipeline, the water pump or oil pump contains part of the gas in the medium pumped out, because when the pump does not reach full load, how much gas will enter (except for the vacuum pump)! Generally, it is installed directly above the flow pipe, vertically installed! When the pipeline is at full load, it is also possible to drain part of the gas and use that to reduce the pressure.

It must be higher than the pipe of the flow medium, not lower than the flow medium, otherwise there will be a blockage! Unable to achieve exhaust effect!

The highest position of the pipe.

Air is lighter than water.