Installation And Maintenance Of Butterfly Valves And Gate Valves

Butterfly valve installation and maintenance
1. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline.
2. When the butterfly plate is installed, the butterfly plate should be stopped in the closed position.
3. The opening position should be determined according to the rotation angle of the butterfly plate.
4. For butterfly valves with bypass valves, the bypass valve should be opened before opening.
5. It should be installed according to the installation instructions of the butterfly valve manufacturer. For butterfly valves with heavy weight, a firm foundation should be set up.

Gate valve installation and maintenance
The installation and maintenance of the gate valve should pay attention to the following matters:
1. The handwheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is strictly prohibited.
2. The double gate gate valve should be installed vertically.
3. The gate valve with the bypass valve should open the bypass valve before opening.
4. The gate valve with transmission mechanism shall be installed according to the provisions of the product instruction manual.
5. If the valve is frequently used, lubricate it at least once a month.

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