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Technical Discussions
Ed
Ed
07:46 Apr-20-2009
C/S Boiler Tube Inspection

Does anyone know of the best way to inspect carbon steel boiler tubes for leaks? These are approximate sizes.
38.1mm OD
31.7mm ID

38.1mm OD
63.5mm ID

 
 Reply 
 
Roger Duwe
NDT Inspector, API-510, 570, 653
MISTRAS, USA, Joined Jan 2009, 148

Roger Duwe

NDT Inspector, API-510, 570, 653
MISTRAS,
USA,
Joined Jan 2009
148
15:24 Apr-20-2009
Re: C/S Boiler Tube Inspection
In Reply to Ed at 07:46 Apr-20-2009 (Opening).

Hydro test the tubes, prefferably at a pressure greater than the Relief Valve setting. I would go 1-1/4 times PRV setpoint.

Second best is IRIS spinning-head UT inspection. Very slow, thus brutally expensive for a full boiler inspex.

 
 Reply 
 
Dent
Consultant, NDE Manager NDELevel III/3
NDT Consultant, Canada, Joined Nov 1998, 252

Dent

Consultant, NDE Manager NDELevel III/3
NDT Consultant,
Canada,
Joined Nov 1998
252
15:52 Apr-20-2009
Re: C/S Boiler Tube Inspection
In Reply to Roger Duwe at 15:24 Apr-20-2009 .

For gross leaks you may try an air test at low pressure. Use acoustics to listen for leaks.

 
 Reply 
 
Simon
Simon
19:45 Apr-20-2009
Re: C/S Boiler Tube Inspection
In Reply to Ed at 07:46 Apr-20-2009 (Opening).

You can try any of the Ultrasonic Leak Detectors with Ultrasonic Tone Generators to check the leaks in the pipes.

Sonatest has Soundscan units. Check their website

Simon

 
 Reply 
 

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