Ventilation Butterfly Valve Troubleshooting

1. Before installation, check whether the performance of the ventilation butterfly valve and the arrow of the medium flow direction are in line with the moving conditions. Insert the valve cavity cleanly and clean. Do not allow foreign matter on the sealing ring and disc plate. Never allow it to be cleaned before cleaning. Close the butterfly plate so as not to damage the seal.

2. It is recommended to use the special flange for butterfly valve, which is HGJ54-91 socket welding steel flange.

3, installed in the pipe position, the best position for the stand, but can not flip.

4, in the use of need to adjust the flow, a worm gear box to control.

5, open and close more disc valve, in two months or so, open the worm gear box cover, check whether the butter is normal, should maintain the right amount of butter.

6. Check the tightening requirements of the joints, that is, to ensure the bees of the filler, and to ensure that the valve stem rotates flexibly.

7. Ventilation butterfly valve products are not suitable for installation at the end of the pipeline. If they must be installed at the end of the pipeline, they must be equipped with an outlet flange to prevent the backlog of the sealing ring from passing through.

8, valve stem installation and use the reaction to regularly check the use of the valve and found that the fault is eliminated.