Illustration of how to manually bleed heating pipe automatic exhaust valve

Users to release the heating system and water supply piping generated in the air pockets, suitable for application in harsh climatic conditions northern regions . Widely used in splitters, radiators, floor heating.

When there is gas generated in the system, due to the density of the gas is smaller than water, the gas will follow the pipeline upwards, and eventually gathered in the high point of the system, so the automatic exhaust valve is generally installed in the high point of the system, where the automatic exhaust valve has the highest exhaust efficiency.

When the gas enters the valve cavity of the automatic exhaust valve gathered in the upper part of the automatic exhaust valve, with the increase of gas in the valve, the gas pressure rises. When the gas pressure is greater than the system pressure, the gas will make the water in the chamber drop, the float drops with the water level, the exhaust port opens to start exhausting; as the gas is discharged, the air pressure decreases, the water level rises, the float rises, and the exhaust port closes.

Steps are as follows:

1, as shown in the figure, the upper water pipe is the water inlet pipe, the lower water pipe is the return pipe, the use of the initiating valve before the use of the lower return pipe should be closed.

2, the valve of the return pipe can be screwed to the end in a counterclockwise direction, so that the return pipe is closed.

3, as shown in the red circle, this is the bleeder valve.

4, and then unscrew the bleeder valve.

5, unscrew the bleeder valve, the valve will be "ZiZi" bleed sound, such as ZiZi sound disappeared, on behalf of the water are discharged, this time the first to close the bleeder valve.

6, and then the bleeder valve in a clockwise direction to close, open the return pipe, so it is completed.

Expanded:

Automatic exhaust valve advantages:

1, heating exhaust valve float using low-density PP material, temperature 110 ℃, this material even if a long time in the high temperature of the water immersion will not produce deformation, will not cause the float activity It will not cause the float to be difficult to move.

2, heating exhaust valve valve stem using hard plastic, lever and float and the support of the connection between the use of movable joints, so it will not produce rust corrosion in the long-term operation, resulting in the system can not work and water leakage.

3, the sealing end part of the lever of the heating exhaust valve is supported by a spring, which can be expanded and contracted accordingly with the movement of the lever to ensure the sealing in the case of non-exhaust.