How to choose automatic exhaust valve for heating

2022-07-22
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When heating in winter, users who turn on the floor heating first need to exhaust, so the exhaust needs to use the exhaust valve. When installing the heating, we must see whether the construction unit has installed the automatic exhaust device for heating. If it is not installed to the heating and exhaust, it is very difficult. Next, I will introduce to you the installation knowledge of the automatic exhaust valve for heating

when heating in winter, users who turn on the floor heating first need to exhaust, so the exhaust needs to use the exhaust valve. When installing the heating, we must see whether the construction unit has installed the automatic exhaust device of the heating. If it is not installed to the heating and exhaust, it is very difficult. Next, I will introduce to you the installation knowledge of the automatic exhaust valve of the heating

[introduction to automatic exhaust valve for heating]

a functional valve used in heating systems, such as radiators, floor heating, and boiler systems to remove system air. It is often installed at the highest point of the system, or directly used together with water separators and radiators. It is mainly to eliminate the internal air, fill the radiator with warm water and ensure the room temperature

[function of automatic exhaust valve for heating]

1 Discharge the air pocket to make the hot water channel unblocked, and prevent the heating from not being warm; 2. Slow down the rust rate of the hot water pipeline. There is oxygen in the pipeline, and it is a high-temperature environment, so the corrosion rate is very fast, unless it is a stainless steel pipeline. But most people can't afford it; 3. Eliminate air blockage, make the circulating pump have water to absorb, and prevent the pump from burning empty

[working principle of automatic exhaust valve for heating]

when gas is generated in the system, because the density of the gas is smaller than that of water, the gas will go up the pipe and finally gather at the high point of the system. Therefore, 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 automatic exhaust valve chamber and gathers at the upper part of the automatic exhaust valve, the gas pressure rises with the increase of gas in the valve. When the gas pressure is greater than the system pressure, the gas will cause the water surface in the cavity to fall, the pontoon will fall with the water level, and the exhaust port will open to start exhaust; As the gas is discharged, the air pressure decreases, the water level rises, the pontoon also rises, and the exhaust port is closed

[how to select the automatic exhaust valve for heating]

according to different installation environments, the selection of automatic exhaust valve for heating (air release valve) mainly includes the following three cases

1 The highest point is the vertical branch pipe, and the installation space is enough. You can choose the automatic vent valve (vent valve) of single port direct exhaust heating

2 The highest point is the vertical branch pipe, but the installation space is not enough. You can choose the automatic exhaust valve (vent valve) of single port side exhaust heating

3 The highest point is the water balance branch pipe. If the installation space is not enough, the right angle heating automatic exhaust valve (vent valve) can be selected. If the installation space is enough and there is no right angle type, a 90 DEG can be installed; Elbow, and then install a single port direct row or side row

[how to install the automatic exhaust valve for heating]

1. The automatic exhaust valve for floor heating must be installed vertically on the ground, and the pontoon in the valve body must be in a vertical state, and cannot be installed upside down or horizontally

2. Since the gas density of the automatic exhaust device is smaller than that of water, it will climb along the pipeline to the highest point of the system and gather here. In order to improve the exhaust efficiency, the exhaust valve is generally installed at the commanding height of the floor heating system

3. In order to facilitate the maintenance of the floor heating system, the exhaust valve is generally used together with the isolating valve, so that the removal of the exhaust valve does not require the shutdown of the system

4. After the installation of the automatic exhaust device for floor heating, the nuts must be loosened before the exhaust, but do not unscrew them all, beware of a large amount of water, and remember to tighten the dust cap after the exhaust

summary: the above introduces the installation knowledge of automatic exhaust valve for heating, hoping to be helpful to you

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