[ashokaa]

Dear Friends,

In my Current project, the P&ID shows there is a one PSV, downstream of PSV have one block valve (carbon steel, Including mating flange) and the pipe is Stainless steel. The materials are purchased already; I need your opinion on this.
Is possible to weld Carbon Steel flange with Stainless Steel Pipe?
If yes,
Is accepted by Standards or Codes? What are the difficulties behind this?
If No,
Please explain the reason,
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Happy Christmas and New year-2008 Wishes,

[Author]

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