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- since 1996 -

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Technical Discussions
Nilesh Pathare
Nilesh Pathare
12:37 May-25-2009
ECT on Phenolic Impregnated Graphite tubes in Heat Exchager

Dear Members,
We want to carry out Eddy Current Testing on Heat exchangers tubes having material of Phenolic Impregnated Graphite. Size: 2" OD X 1 1/2" ID and about 6 meter long.
So the Thickness of the tube is 6.35 mm.
I want to know that Which method shall be used for Eddy current testing.
What will be the effect of Impregnated Phenolic on Conductivity of Graphite?
what will be the frequency to be used and type of probe?

 
 Reply 
 
Ingo Becker
Engineering, NDT Inspector & Sales
ec-works GmbH, Germany, Joined Apr 2000, 30

Ingo Becker

Engineering, NDT Inspector & Sales
ec-works GmbH,
Germany,
Joined Apr 2000
30
10:03 May-26-2009
Re: ECT on Phenolic Impregnated Graphite tubes in Heat Exchager
In Reply to Nilesh Pathare at 12:37 May-25-2009 (Opening).

The inspection of Graphite tubes can be done with the use of special designed eddy current probes. We have done sucessful a few inspections in the past. As always with eddy current techniques, you need a calibration tube with natural or machined calibration defects to find a proper setting and to evaluate the eddy current signals you receive during the inspection.

You are welcome to contact us directly for further support.

Regards

Ingo Becker

 
 Reply 
 
Paul Rutherford
Paul Rutherford
21:02 Dec-09-2019
Re: ECT on Phenolic Impregnated Graphite tubes in Heat Exchager
In Reply to Ingo Becker at 10:03 May-26-2009 .

is there a possibility of training a group in the united states to perform ECT of graphite tubes? We would be starting from scratch but we have vast need for learning and being able to perform these inspections for our plant site. Thank You.

Paul Rutherford
Inspection Planner
Daikin America Inc

 
 Reply 
 
Puneet
R & D, Vice President
Arise Global Pte Ltd, Singapore, Joined Mar 2012, 4

Puneet

R & D, Vice President
Arise Global Pte Ltd,
Singapore,
Joined Mar 2012
4
08:34 Dec-16-2019
Re: ECT on Phenolic Impregnated Graphite tubes in Heat Exchager
In Reply to Nilesh Pathare at 12:37 May-25-2009 (Opening).

Patented Acoustic Pulse Reflectometry (APR) is the best solution for such tube inspection as it is material, material thickness, tube shape independent inspection technology. For such inspection services you can let us know your requirement in detail and we will guide you to the nearest service provider.
Arsie Global are the patent holders for APR technologies (www.ariseglobal.com).

For purchase of these new APR units named APRIS, please contact sales@talcyon.com
(www.talcyon.com) our sister company. Thanks.

 
 Reply 
 
Frank Lund
R & D,
United Kingdom, Joined Apr 2005, 221

Frank Lund

R & D,
United Kingdom,
Joined Apr 2005
221
19:26 Dec-16-2019
Re: ECT on Phenolic Impregnated Graphite tubes in Heat Exchager
In Reply to Puneet at 08:34 Dec-16-2019 .

Puneet,

That's interesting. Please let us know the patent number(s).

Thanks,
Frank

 
 Reply 
 
Puneet Peeyush
R & D, Vice President
Arise Global Pte Ltd, Singapore, Joined Mar 2012, 4

Puneet Peeyush

R & D, Vice President
Arise Global Pte Ltd,
Singapore,
Joined Mar 2012
4
09:46 Dec-17-2019
Re: ECT on Phenolic Impregnated Graphite tubes in Heat Exchager
In Reply to Frank Lund at 19:26 Dec-16-2019 .

US 2008/0208505

 
 Reply 
 

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