介质流向的标明用途: 1、管道、阀门布置比较集中,可以避免因误操作而引发事故。 2、在检维修时,可以使检维修人员知道管道输送的物质和管道流向。 3、在发生事故的紧急情况下,可以紧急切断易燃、易爆、有毒、有害物料的阀门,避免事故影响扩大。
安装时请注意闸门 本体上标明介质流向。
Pay attention to the flow direction of medium marked on the body.
安装时请认清介质流向并按阀体上指示箭头方位正确安装。
Pay attention to the flow direction of medium and install the valve referring to the indicating arrow on the valve body.
焊缝编号应根据管线介质流向进行编号,原则上应先主管后支管。
Welding seam should be numbered according to pipeline medium set, in principle, main pipe prior to branch pipe.
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