1, before the valve installation, should carefully check whether the model and specifications of the valve used are consistent with the design; 2, according to the valve model and factory instructions to check whether the valve can be applied under the required conditions; 3. When hoisting the valve, the rope should be tied to the flange connection of the valve body and the valve cover, and not tied to the handwheel or valve stem, so as not to damage the valve stem and handwheel; 4, when installing the valve on the horizontal pipe, the valve stem should be vertically upward, and the valve stem should not be installed downward; 5, when installing the valve, it shall not be forced to pull and pull the connection mode, so as to avoid damage due to uneven force; 6, the gate valve should not be installed in the underground wet place, so as to avoid corrosion of the valve stem.
