務(wù)必記住所推薦的閥門的用途是什么，并對所應(yīng)用的環(huán)境進(jìn)行分析，這樣才能決定選用最適合安裝什么樣的閥門。在安裝正確的閥門之前，為了防止損壞閥門，并保證充分發(fā)揮閥門的工作性能，請閱讀一下安裝指南：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： 先沿著垂直方向切割管道，并修整、去除毛刺，測量管徑。Cut tube end square. Ream, burr and size. 使用紗布或鋼絲刷清除管道和切割部位，使其金屬表面發(fā)光發(fā)亮。建議不要使用鋼絲絨。Use sand cloth or steel wire brush to clean both ends to a....
