Welded connection and flanged connection
Welded connection and flanged connection
(OP)
Hi guys,
I am coping with many connections that connect to wash column tower. But I don't definately clear when to use flanged connections and when to use welded connections. Is there anyone able to help me. would you please explain as well as point me to a document to study in details.
Thank you very much,
tranvietnga
I am coping with many connections that connect to wash column tower. But I don't definately clear when to use flanged connections and when to use welded connections. Is there anyone able to help me. would you please explain as well as point me to a document to study in details.
Thank you very much,
tranvietnga





RE: Welded connection and flanged connection
ease of transportation,
ease of assembly or installation,
entry point for cleaning pipe and internals,
entry point for inspection,
valve or equipment replacement,
access or equipment passage (to reach other side of line),
quicker reconfiguration for temporary piping (spec blinds),
to make reconfigurations not requiring hot work permits,
replacement or removal of internal items,
to attach devices or instrumentation needing frequent work,
upgrading or increasing capacity at a later date,
disassembly during maintenance, or
to make a convenient tie-in point for a future connection that would not require testing the existing piping.
Any others? Must be a few.
Flanged connections may not be absolutely necessary for some of the reasons given above, but all could possibly influence your decision.
http://virtualpipeline.spaces.msn.com
RE: Welded connection and flanged connection
RE: Welded connection and flanged connection
RE: Welded connection and flanged connection
The first consideration is safety, then maintenance. If the fluid in the pipeline can cause instant health hazard when its exposed into the environment (i.e H2S or High pressure/temperature steam) go with welded connections.
The next step would be to contact maintenance group to discuss shut down requirements or frequencies for the unit so you can place flanges across items that are frequently replaced.
RE: Welded connection and flanged connection
Kindest,
tranvietnga