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bobi
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Join Date: Apr 2011
Posts: 4

Hydrotest Ring Design for Tube Bundle

04/28/2011 12:03 AM

dear all ,

it would be great help to me if you can send me or guide me the complete design of hydrotest rings for tube bundle testing .. as i am in need to submit to client for their review and reference .

bobi.

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pritam
Guru
Engineering Fields - Mechanical Engineering - New Member India - Member - New Member

Join Date: Aug 2008
Location: City of destiny, INDIA
Posts: 775
Good Answers: 67
#1

Re: hydrotest ring desing for tube bundle

04/28/2011 4:56 AM

What is hydrotest rings for tube bundle testing? Can you explain a little bit, how its looks like? I need this to answer you.
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bobi
Participant

Join Date: Apr 2011
Posts: 4
#2
In reply to #1

Re: hydrotest ring desing for tube bundle

04/28/2011 6:45 AM

this is a test flange to test the tube bundle normally its called as TESTRINGS .. which needs to be fixed while carring hydrotest .
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pritam
Guru
Engineering Fields - Mechanical Engineering - New Member India - Member - New Member

Join Date: Aug 2008
Location: City of destiny, INDIA
Posts: 775
Good Answers: 67
#3
In reply to #2

Re: hydrotest ring desing for tube bundle

04/29/2011 2:01 AM

So, its very simple. You need two test rings, one for inlet flange and another for outlet. Take dummy flanges exactly suiting to inlet & outlet flanges of the tube bundle (number of holes and PCD). Now drill two 1/2" holes in each dummy flange and weld 1/2" threaded nipples on them along with 1/2" ball valves. Mount pressure gauges (of range around 1.5 times the test pressure) in one of the holes in each flange (because test codes generally ask for dual pressure gauge). Connect pressurised water to the lower flange. One free hole at top flange should be used as vent while filling water.
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bobi
Participant

Join Date: Apr 2011
Posts: 4
#5
In reply to #3

Re: hydrotest ring desing for tube bundle

04/30/2011 1:59 AM

thanks very much for your help .

i feel proud to be a member of this forum .

god bless you all ..

bobi..
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Mukesh0861
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Join Date: Dec 2010
Posts: 377
Good Answers: 20
#4

Re: Hydrotest Ring Design for Tube Bundle

04/30/2011 12:47 AM

Test ring is nothing but the equivalant flange of the chanal cover which holds the tube sheet with the shell of the exchanger. You must have all the details of the chanal cover flange or the heat exchanger shell flange, just make a ring of same sizes and matching holes. This may be made in two pieces also for ease of handling. Then fix the tube bundle in the exchanger shell with this ring in place of chanal cover with proper gasket between tube bundle and shell flange and a protecting gasket between test ring and tube sheet. Shell side can be presurized to carry out the hydrotest.
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bobi
Participant

Join Date: Apr 2011
Posts: 4
#6
In reply to #4

Re: Hydrotest Ring Design for Tube Bundle

04/30/2011 2:39 AM

thanks very much for your help .

i feel proud to be a member of this forum .

god bless you all ..

bobi..
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