What precautions are required for valve installation

source：https://baike.baidu.com/item/閥門     adding：2019/9/16 15:04:00

1, before valve installation, should carefully check the valve model, specifications and design compliance;

2. Check whether the valve can be used under the required conditions according to the valve model and factory manual;

3, valve lifting, the rope should be tied to the valve body and valve cover flange connection, and do not tie on the hand wheel or stem, to avoid damage to the stem and hand wheel;

4. When installing valve in horizontal pipe, the valve stem shall be vertically upward, not downward;

5, when installing the valve, do not use the forced connection method, so as not to cause damage due to uneven force;

6. Rising stem gate valve should not be installed in the damp underground place to avoid stem corrosion.