Precautions for gate valves

1. Handwheels, handles, and transmission mechanisms are not allowed for lifting purposes, and collisions are strictly prohibited.

2. Double gate valves should be installed vertically (i.e. the valve stem is in a vertical position and the handwheel is at the top).

3. Gate valves with bypass valves should be opened before opening (to balance the pressure difference between the inlet and outlet and reduce the opening force).

4. Gate valves with transmission mechanisms should be installed according to the instructions in the product manual.

5. If the valve is frequently opened and used, lubricate it at least once a month.

6. Gate valves are only used for fully open and fully closed medium operation on various pipelines or equipment, and are not allowed for throttling purposes.

7. Gate valves with handwheels or handles should not have additional auxiliary bars added during operation (if the seal is not tight, the sealing surface or other parts should be inspected and repaired). Rotate the handwheel and handle clockwise to close, otherwise to open. Gate valves with transmission mechanisms should be used in accordance with the instructions in the product manual.