I would like to ask what the red arrows in these two pictures are for?
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This post was last edited by dmz329227 on 2018-10-10 at 14:01. Dear experts, what is the function of the red arrow areas in these two images? This is a circulating water pipeline, with water as the medium. In the first image, the flexible rubber coupling has a connection between its upper and lower flanges ； ————Is it a equipotential bonding wire? In the second image, there is a thin tube connecting from the outlet of the pump down to the shaft. ————Is it shaft cooling water?
Why is equipotential grounding necessary for circulating water?
I don’t know! It is neither a combustible gas nor a combustible liquid; it is a flexible rubber connection with a wire inserted in it to secure it to the upper and lower flanges. I don’t know why! So I’d like to ask everyone
Was it the machinery that enforced the static grounding standards for petrochemical pipelines, adopting a one-size-fits-all approach to avoid any ambiguity?
The first one is correct; the second chapter is unclear
It has been confirmed: the first one is electric heating; since it is a rubber flexible connection, it was appropriately routed around it.
I don’t understand the first one; the second one should be the mechanical seal flushing pipe