1. The valve should be stored in a dry, ventilated room, and both ends of the valve channel should be blocked.

2. Valves stored for a long time should be checked regularly to remove dirt. Special attention should be paid to the cleaning of the sealing surface to prevent damage to the sealing surface.

3. Before installation, carefully check whether the valve mark is equal to the use requirements.

4. Before installation, the valve channel and sealing surface should be checked, and if there is dirt, it should be wiped clean with a cleaning cloth.

5. Check whether the packing is pressed before installation, the tightness of the packing should be ensured, and the rotation of the valve stem should not be hindered.

6. The tightening force of the tightening connecting bolts should be uniform and appropriate during installation.

7. This butterfly valve can be installed on horizontal and vertical pipelines, and the installation position should ensure that it is easy to use, maintain and replace.

8. When the manual valve is opened or closed, the handle should be used to open and close, and the auxiliary bar or other tools should not be borrowed.

9. The valve should be checked regularly to check whether the sealing surface is worn and the gasket packing. If it is damaged or invalid, it should be repaired or replaced in time.