该阀是一个控制开关，用于管理管道中的流体传输。更换介质的方法有很多种，根据类型的不同，类型也不同。可以说，阀门是一大类，种类很多它可以用来控制各种流体的流动，如水、蒸汽、石油产品、气体、泥浆、各种腐蚀性介质、液态金属和放射性流体。
The valve is a control switch used to manage the flow of fluid in the pipeline. There are many ways to change the medium, depending on the type, the type is also different. It can be said that the valve is a large category, there are many kinds of it can be used to control the flow of various fluids, such as water, steam, petroleum products, gas, mud, various corrosive media, liquid metal and radioactive fluid.
良工阀门的工作压力范围为0.0013mpa~1000MPa，工作温度范围为c-270~1430℃。阀门的安装要求和注意事项是什么
The working pressure range of the valve is 0.0013 MPA ~ 1000 MPA, and the working temperature range is c-270 ~ 1430 °C. What are the installation requirements and precautions for valves

1、阀门的安装要求是什么
1. What are the installation requirements of the Valve 

2、安装阀门前，仔细检查所用阀门的型号和规格是否与设计相符
2. Before installing the valve, check carefully whether the type and specification of the valve used are in conformity with the design 

3、根据阀门型号和出厂说明书，检查阀门是否能在要求的条件下使用
3. According to the valve type and the factory manual, check whether the valve can be used under the required conditions. 

4、起吊阀门时，绳索应系在阀体与阀盖之间的法兰连接处，不得系在手轮或阀杆上，以免损坏阀杆和手轮
4. When lifting the valve, the rope should be tied to the flange joint between the valve body and the valve cover, not tied to the handwheel or the valve stem, in order not to damage the valve stem and Handwheel 

5、在水平管道上安装阀门时，阀杆应垂直向上，阀杆不允许向下安装
5, in the Horizontal Pipeline Installation Valve, the valve stem should be vertical up, the valve stem does not allow to install 

6、安装良工阀门时，不允许采用硬拉的强制对口连接方式，以免因应力不均匀而损坏
6, installation of good valve, do not allow the use of hard-pull forced counterpart connection, avoid Uneven stress and damage 

7、明杆闸阀不应安装在地下潮湿的地方，以避免阀杆腐蚀。
7, Stem Gate Valve should not be installed in the underground moist place, to avoid stem corrosion.