1. Handwheels, handles and transmission mechanisms are not allowed to be lifted, and collisions are strictly prohibited.
2. The double gate valve shall be installed vertically (ie the valve stem is in a vertical position and the handwheel is at the top).
3. The gate valve with 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 shall be installed in accordance with the instructions of the product manual.
5, if the soft seal gate valve is often used for switching, lubricate at least once a month.