Does the pipeline for flushing the pump seal of the unit need to be drawn in the PID?
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The unit has approximately 10 pumps. Should the pipeline for seal flushing water be included in the PID diagram?
It needs to be drawn out, so that the piping team can use it for pipeline layout
It is required on the pump flow diagram; there is no need for it in the overall plant PID.
Not only the seal flushing water, but also the cooling water and insulation piping (if any) should be shown.
This post was last edited by FORREST_GUMP on 2016-8-30 09:44. Thank you. If there is no PID diagram, then it isn’t available in the material list either. Will the purchasing department order materials for the wash water pipes? Also, on the pump flow diagram, how are the pipes numbered?
You’re like a universal solution – the pump manufacturer can provide it along with the quotation, or the manufacturer can supply the schematic diagram while your company handles the piping. Anyway, you wouldn’t believe me anyway. ;P
A single pump manufacturer cannot supply all the pumps; it is estimated that 2 manufacturers will be needed； Moreover, the dimensions and types of the flushing connectors vary from manufacturer to manufacturer, so it is more convenient to prepare them oneself. I lack the necessary skills and experience; please forgive me, Old Wang{:1_90:}
There is cooling water at the mechanical seal; it doesn’t matter whether it’s included in the PID, but it must be shown in the piping diagram.
It needs to be drawn; it doesn’t matter how, just add a note on the page