Butterfly Valve Installation and Debugging and Troubleshooting Methods for Common Faults

I. Installation test and adjustment:

1. Whether manual, pneumatic, hydraulic or electric, all components of butterfly valve products are strictly debugged before leaving the factory. When rechecking the sealing performance, users should evenly fix both sides of the inlet and outlet, close the butterfly valve, apply pressure to the inlet side, and observe whether there is leakage on the outlet side. Before the strength test of the pipeline, the disc plate should be opened to prevent damage to the sealing pair.

2. Some products may have automatic screw displacement during transportation, which requires readjustment, pneumatic, hydraulic, etc. Please read the supporting instructions for use, or contact us for consultation.

II. Common faults and elimination methods

1. Before installation, please confirm whether the product performance and the medium flow direction arrow are consistent with the working conditions, and clean the inner cavity of the valve. It is not allowed to have impurities and foreign matter on the sealing ring and butterfly plate. It is never allowed to close the butterfly plate before cleaning to avoid damaging the sealing ring.

2. It is recommended to use a special flange for butterfly valves for the matching flange of the butterfly plate.

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

4. The flow needs to be adjusted during use, and the worm gear box is used for control.

5. For butterfly valves that are opened and closed frequently, the worm gear box cover should be opened every two months to check whether the grease is normal and keep the appropriate amount of grease.

6. Check that each connection part is required to be pressed tightly, that is, to ensure the sealing of the packing and the flexible rotation of the valve stem.

7. Metal-sealed 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, an outlet flange must be installed to prevent the sealing ring from being overloaded and over-positioned.

8. The valve stem installation and use response should regularly check the valve use effect and eliminate any faults in a timely manner.