吸入管路截面积必须大于或等于泵流道断面积。
The sectional area of the suction pipeline is no less than pump flowing channel's.
泵吸入管路底部应安装截止止回阀，确保其操作灵活。
Check valve should be installed in the bottom of suction pipe of pump to make sure operation is prompt.
蒸汽管结构应能避免将任何加热蒸汽带入锅炉给水泵吸入管路。
Steam pipe configuration shall be such as to prevent entrainment of any heating steam into boiler feed pump suction lines.
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