务必记住所推荐的阀门的用途是什么，并对所应用的环境进行分析，这样才能决定选用最适合安装什么样的阀门。在安装正确的阀门之前，为了防止损坏阀门，并保证充分发挥阀门的工作性能，请阅读一下安装指南：Analyze the application to determine which valve is best suited for installations, keeping in mind the service for which the valve is recommended. Before installing the correct valve, review the installation instructions to prevent damage to the valve and to assure its maximum efficiency： 先沿着垂直方向切割管道，并修整、去除毛刺，测量管径。Cut tube end square. Ream, burr and size. 使用纱布或钢丝刷清除管道和切割部位，使其金属表面发光发亮。建议不要使用钢丝绒。Use sand cloth or steel wire brush to clean both ends to a....
