Many ways to prevent leakage in the installation process, the choice of packing, sealing method of choice, good choice of valve sealing performance, are factors that must be taken into account.

• 防止泄漏的方法很多，在安装过程中，填料的选择、密封方法的选择、选用密封性能好的调节阀等，都是必须考虑的因素。