Issues related to the layout of hose stations as required by regulations
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The regulations require that the steam and air pipes at the hose station should be led out from the top of the main pipe in the pipe tray； Water pipes and nitrogen pipes should not be led out from the area at the bottom of the main pipe, where the angle with the vertical diameter is 30 degrees. ”The first sentence is definitely fine, but what is the reason required for the second sentence?
Worried about residual iron filings and impurities in the pipes! ～～
As described in HG 20519.12-92, \"air and steam branch pipes are led off from the main pipe, while water pipes and nitrogen pipes are led off from the side of the main pipe.\" ” In HG 20519.4-2009, it is changed to state that \"nitrogen, air, and steam branch pipes are led off from the main pipe, while water pipes can be led off from the side of the main pipe.\" ”