Pneumatic butterfly valve common faults and elimination methods

1, the installation of the front to confirm the factory product performance and media flow arrow is consistent with the movement conditions, and the valve cavity insert clean, not allowed in the seal ring and butterfly with foreign matter, not allowed to close the butterfly before cleaning, so as not to damage the seal ring.

2. It is recommended to use special flange for disc valve for plate installation.

3, installed in the pipeline position, the best position for vertical installation, but not inverted.

4, the use of the need to adjust the flow, with worm gear box for control.

5, open and close the dish valve with more times, in about two months, open the worm gear box cover, check whether the butter is normal, and the appropriate amount of butter should be maintained.

6, check the connection parts are required to press, that is, to ensure the sealing of the packing, but also to ensure the flexible rotation of the valve stem.

7, the metal seal butterfly valve product is not suitable for installation at the end of the pipeline, if it must be installed at the end of the pipeline, it is necessary to install the outlet flange to prevent the sealing ring overstock and overposition.

8, the valve stem installation and use reaction regularly check the use of the valve effect, find the fault in time to eliminate.