1. When the gate valve is welded with the pipeline, the valve should be opened, and the neck should be properly protected with moisture to minimize high temperature heat conduction to prevent damage to the sealing packing.
2. When closing the valve, it is strictly prohibited to use a force lever. When the ram is closed to the top, the hand wheel should rotate 1/2 circle to make the ram floating.
3. During the use of the gate valve, a certain amount of grease shall be regularly injected into the valve cap grease injection joint.
4. If the valve leaks due to wearing parts during use, it shall be replaced in time.
5. During the maintenance of the valve, the inner chamber shall be cleaned, and the transmission parts shall be greased during assembly.
6. During the storage and shutdown of valves, the ram shall be in the closed position, and the valves shall be placed in a ventilated and dry place for long-term storage. Regular inspection and maintenance shall be carried out.