What are the criteria to select Stub in or Stub on for Branch connection in Piping?
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PK M
Apr 8, 2013, 5:49:12 AM4/8/13
to material...@googlegroups.com
Dear Experts,
What are the criteria to select Stub in or Stub on for Branch connection in Piping?
(Or)
How to choose Stub in or Stub on for Branch connection in Piping?
Thank you,
Pkm..
agum...@yahoo.com
Apr 9, 2013, 6:54:35 AM4/9/13
to materials welding
Hi.
Other criteria may be: stub in for heather pipe in not operation and stub on for heather pipe in operation.
Agustin Jimenez
Equipment static specialist.
For "stub in," the stub or branch pipe extends to the inside of the main pipe. The hole in the main pipe is (usually) beveled to allow for a full-penetration weld. For "stub on," the stub extends only to the outside of the main pipe. The stub may be beveled, but if not only a fillet weld can be done. "Stub in" is generally stronger, and often much stronger.
Other criteria may be: stub in for heather pipe in not operation and stub on for heather pipe in operation.
Agustin Jimenez
Equipment static specialist.
Enviado desde mi BlackBerry de Movistar
From: vineet kumar <vinee...@gmail.com>
Sender: material...@googlegroups.com
Date: Mon, 8 Apr 2013 22:35:44 -0700 (PDT)
ReplyTo: material...@googlegroups.com
Subject: [MW:17318] Re: What are the criteria to select Stub in or Stub on for
Branch connection in Piping?
Dear,
Regards,
Vineet
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Srinivas Rao
Apr 10, 2013, 2:35:09 AM4/10/13
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As per EIL spec,
Stub-in is used when the Branch is more than one size smaller than main pipe.
Stub-on is to be used when the Branch is equal to or one size smaller than main Pipe.
Regards
Srinivas
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