1. Before installing the valve, carefully check whether the model and specifications of the valve used are consistent with the design;
2. According to the model of the valve and the factory manual, check whether the valve can be applied under the required conditions;
3. When the valve is hoisted, the rope should be tied to the flange connection between the valve body and the valve cover, and should not be placed on the hand wheel or the valve stem to avoid damage to the valve stem and the hand wheel;
4. When installing the valve on the horizontal pipe, the valve stem should be vertical upwards, and the valve stem should not be installed downward;
5. When installing the valve, it is forbidden to use the forced-to-mouth connection method of pulling and pulling hard to avoid damage caused by uneven force;
6, the open gate valve should not be installed in the wet place in the ground, so as to avoid valve stem corrosion.
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