1. Handwheels, handles and transmission mechanisms are not allowed to be used for lifting, and collision is strictly prohibited.
2. The double gate valve should be installed vertically (ie the valve stem is in the vertical position and the handwheel is on the top).
3. The gate valve with the bypass valve should open the bypass valve before opening (to balance the pressure difference between the inlet and outlet and reduce the opening force).
4. The gate valve with transmission mechanism is installed according to the specifications of the product manual.
5. If the valve is used frequently, it should be lubricated at least once a month.
6. The gate valve is only used for the operation of the medium on all kinds of pipelines or equipments, and is not allowed to be used for throttling.
7. For the gate valve with handwheel or handle, the auxiliary lever should not be added during operation (if the seal is not strict, the sealing surface or other parts should be inspected). The handwheel and the handle rotate clockwise to close, otherwise they open. The gate valve with the transmission mechanism shall be used in accordance with the product manual.
