What is a heating bleeder valve? What is the heating air release step?

The heating exhaust valve is used to exhaust the gas in the heating pipeline to prevent gas blockage.

Heating and deflation steps:

1. As shown in the figure, the upper water pipe is the water inlet pipe and the lower water pipe is return pipe. Close the lower return pipe before using the start valve.

2. Turn the return pipe valve counterclockwise to the end to close the return pipe.

3. As shown by the red circle in the figure, this is the bleeder valve.

4. Then unscrew the air valve.

5. After opening the air valve, the valve will make a "squeaky" deflation sound. When the hissing sound disappears, it means that the water has been drained. At this point, close the drain valve first.

6. Then close the bleeder valve clockwise and open the return pipe, and it is finished.

Extended data:

When the circulating pump is pressurized, the water in the pipeline will circulate without bubbles after being pressurized by the circulating pump: if the circulating water is lost for some reason, there will be a lot of gas in the upper part of the pipeline. Because the density of air is smaller than that of water, the water at the high pressure end is blocked because it can't hold the air, so the water in this pipeline can't circulate, and the heating is certainly not hot.

Matters needing attention in the use of heating valves:

1, adjust the position. Adjust the valve of each riser to a proper position;

2. Open the manual exhaust valve of each radiator to exhaust the air accumulated in the radiator, or open the exhaust valve of the gas collector installed at the top of the system to exhaust until each radiator heats up and the debugging is completed. Once the debugging is completed, the valve should be fixed and cannot be opened or closed at will.

3. Turn the handwheel clockwise when opening the valve, and counterclockwise when closing it, and rotate it in place according to the opening and closing instructions. Do not replace the radiator or drain water from the system at will. Without hot water, the water temperature in the pipe network will drop rapidly, resulting in a drop in indoor temperature.

4, such as valve failure, should immediately stop using, find out the reason and clear the fault.

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