Stub In Connection in Class 600 Line

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leonpeter Participant Join Date: Jan 2016 Posts: 1	Stub In Connection in Class 600 Line 02/18/2016 4:24 AM
	What is the possibility of taking stub in connection from 8" Class 600 line . Working pressure is 140 bar .Please clarify me Thanks
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#1 Re: Stub In connection in Class 600 Line 02/18/2016 6:36 AM
	Anything is possible, however it needs to be done correctly. The company doing the work will need to know much more information than has been revealed so far. The best bet is to get on the telephone and talk to people that can help. Their names and telephone numbers can be found using an internet search engine, such as Google. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Anonymous Poster #1	#2 Re: Stub In Connection in Class 600 Line 02/18/2016 10:11 AM
	This is obviously an existing system that was designed, inspected and installed by others. You are probably putting a new branch into an existing line ... A stub-in connection is the weakest of all types of piping intersections and requires the most quality field welding. It requires no additional part purchasing and is therefore favored by managers Most likely, your system was designed to a set of Code rules such as ASME B31.1 or B31.3 which establishes rules for designing and selecting pipe intersections, such as stub-ins, reinforced tees, full tees and weldolets. These Code rules are typically incorporated into a pipe line specification. Important information such as pipe materials, operating temperature, etc etc which you do not seem to have. Instead of asking others to do your work, review and investigate these codes and rules and answer your own question
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James Stewart Guru Join Date: Mar 2011 Location: Lubbock, Texas Posts: 14331 Good Answers: 162	#3 Re: Stub In Connection in Class 600 Line 02/19/2016 8:41 AM
	You will put your eye out! __________________ If it ain't broke, don't fix it. Just build a better one.
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srini Power-User Join Date: Mar 2008 Location: Houston, Texas Posts: 101 Good Answers: 6	#4 Re: Stub In Connection in Class 600 Line 02/19/2016 10:41 AM
	class 600 # flanges are limited to 102.1 Bar at ambient temperature. How can you have 140 Bar working pressure? __________________ If you don't know where you are going,you are bound to get there
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James Stewart Guru Join Date: Mar 2011 Location: Lubbock, Texas Posts: 14331 Good Answers: 162	#5 In reply to #4 Re: Stub In Connection in Class 600 Line 02/19/2016 12:16 PM
	He apparently likes living dangerously, or perhaps enjoys putting those around him in danger???? __________________ If it ain't broke, don't fix it. Just build a better one.
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#6 Re: Stub In Connection in Class 600 Line 02/19/2016 12:44 PM
	Some data sounds wrong here. Pipes are not denominated by Class, although valves, flanges, and fittings can be. And, as previously noted, Class 600 does not correspond to 140 bar ~~ 2100 psi, not even at cool temperatures. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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Anonymous Poster (1); James Stewart (2); PWSlack (1); srini (1); Tornado (1)

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