What is the role of check valve in Roots blower?

The check valve of Roots blower plays a vital role in actual use. It can effectively prevent the reverse flow of gas in the pipeline, so as to avoid damage to the blower. However, sometimes, the user may encounter the problem that the check valve is not tightly closed, which requires relevant inspection and maintenance.

When installing the fan, the correct installation position of the check valve is very important. In general, the check valve shall be horizontally installed on the pipeline between the silencer at the fan outlet and the subsequent pipeline. Pay attention to the following points during installation:

First of all, ensure that the check valve has been cleaned before installation, and eliminate possible defects, such as whether the valve seat and valve are damaged, so grinding treatment is required.

Secondly, check the signs and nameplates on the valves during installation to ensure that they meet the use requirements.

In addition, attention should be paid to the directionality of the check valve to ensure that the normal flow direction of the medium is consistent with the opening direction of the valve, so as to ensure that the medium can flow smoothly, otherwise the normal flow of the medium transported by the fan may be cut off.

In addition, during installation, ensure that the check valve is independently supported to avoid the impact of pipeline pressure.

Finally, when multiple fans are working in parallel, it is necessary to consider whether there are other channels to pass through, so as not to cause pressure changes before the fans stop working, thus affecting the normal function of the check valve.