Pressure Test

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Anonymous Poster	Pressure Test 07/29/2010 2:34 AM
	How do i know what pressure to test a u-bend for different thicknesses?
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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: Pressure Test 07/29/2010 3:02 AM
	Do a hypothetical slice through the bend in various planes and carry out a force-balance calculation on it for each slice. __________________ "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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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	#2 In reply to #1 Re: Pressure Test 07/29/2010 6:31 AM
	Do a hypothetical slice through the bend in various planes and carry out a force-balance calculation on it for each slice. "Simples! ξ" __________________ "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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Joos Participant Join Date: Jul 2010 Posts: 4	#3 In reply to #2 Re: Pressure Test 07/29/2010 9:14 AM
	If I have a 19.2mm U-Bend in ASTM A351 HK40 Material, to what hydrostatic pressure must I test it?
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#4 In reply to #3 Re: Pressure Test 07/29/2010 11:03 PM
	It would depend on the wall thickness. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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Joos Participant Join Date: Jul 2010 Posts: 4	#5 In reply to #4 Re: Pressure Test 07/30/2010 12:49 AM
	The wall thickness is 19.2 mm.
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#6 In reply to #5 Re: Pressure Test 07/30/2010 1:09 AM
	In that case, then it depends on the diameter of the tube from which the U-bend is formed. It may also depend on the center-line radius of the bend. Not only that, your OP mentions different thicknesses. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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Joos Participant Join Date: Jul 2010 Posts: 4	#7 In reply to #6 Re: Pressure Test 08/02/2010 4:12 AM
	The ID of the bend is 140mm and the minimum wall thickness is 19.2mm.
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Joos (3); PWSlack (2); Tornado (2)

You might be interested in: Gas Pressure Regulators, Pressure Regulators, Pressure Gauges

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