where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

8171 views
Technical Discussions
Derek O'Connor
Derek O'Connor
00:15 Aug-28-2007
Gamma Plugs

we need some clarification on what or how do Gamma Plugs work.
This is referring to NDE on socket welds or weld O-lets.
Any feed back will help.

Steve.Alexander@fluor.com


 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
06:26 Aug-28-2007
Re: Gamma Plugs
Steve

You can access the Pipe Fitting Institute standard PFI ES-16 "Access Holes, Bosses, and Plugs for Radiographic Inspection of Pipe Welds" here:

http://www.pfi-institute.org/Product.htm

They are simply acces ports for gamma guide tubes. Not something I have seen used but for low integrity sealed vessels or pipes in sensitive (i.e. public) areas I imagine they facilitate panoramic exposure cutting down greatly on the exposure time (source strength) required by multiple double wall single image shots.

I think you are confused about the socket welds, the access bosses will be threaded and seal welded to the shell or pipe. I imagine any NDE of them will be MT or PT to ensure no porosity/pinholes. in the seal welds.

Regards

Nigel


----------- Start Original Message -----------
: we need some clarification on what or how do Gamma Plugs work.
: This is referring to NDE on socket welds or weld O-lets.
: Any feed back will help.
: Steve.Alexander@fluor.com
------------ End Original Message ------------




 
 Reply 
 
sivabalan
sivabalan
02:31 Aug-30-2007
Re: Gamma Plugs
Gamma holes, holes of Dia 20-25mm size thread, and having a threaded plug... can b utilized to take RT (gamma source) through that hole (panaromic exposure in heavy thickness walls in pressure vessels) so that exposure time can be reduced, it can be utilized for viusal inspection using boroscope in Olets.. root inspection..
----------- Start Original Message -----------
: Steve
: You can access the Pipe Fitting Institute standard PFI ES-16 "Access Holes, Bosses, and Plugs for Radiographic Inspection of Pipe Welds" here:
: http://www.pfi-institute.org/Product.htm
: They are simply acces ports for gamma guide tubes. Not something I have seen used but for low integrity sealed vessels or pipes in sensitive (i.e. public) areas I imagine they facilitate panoramic exposure cutting down greatly on the exposure time (source strength) required by multiple double wall single image shots.
: I think you are confused about the socket welds, the access bosses will be threaded and seal welded to the shell or pipe. I imagine any NDE of them will be MT or PT to ensure no porosity/pinholes. in the seal welds.
: Regards
: Nigel
:
: : we need some clarification on what or how do Gamma Plugs work.
: : This is referring to NDE on socket welds or weld O-lets.
: : Any feed back will help.
: : Steve.Alexander@fluor.com
------------ End Original Message ------------




 
 Reply 
 
Ana Vasileva
Ana Vasileva
06:04 Sep-08-2007
Re: Gamma Plugs
Please, explain what does "gamma plugs" mean.I`m not an engineer, I just have to translate translate from English into Bulgarian a document in which it is written" strength calculation of elbows with gamma plugs". Or maybe you know the above words in Russian or German?
Thank you in advance for your kind assistance!

Regards
Ana Vasileva


 
 Reply 
 

Product Spotlight

Research Center IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque Research centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system f
...
or the train wheel. This system secures a sound condition of train wheels and is thus a significant contribution to rail transport safety. The device was delivered to CAF recently and its use allows the manufacturer to become an approved supplier of rolling stock in Italy, as it meets the demanding homologation standards of this country. \\\\r\\\\n
>

IRIS 9000Plus - Introducing the next generation of heat exchanger inspection.

Representing the seventh generation of the IRIS system, the IRIS 9000 Plus has nearly 200 years of c
...
ombined field inspection experience incorporated in its design. This experience combined with a strong commitment to quality and a history of innovation has made Iris Inspection Services® the undisputed leader in IRIS technology.
>

NEW - TD Focus-ScanRX

The NEW Next Generation Advanced UT platform, TD Focus ScanRX - Also available as a card stack solut
...
ion. Key Improvements 1. Data acquisition is significantly faster than current design 2. Better aesthetic – closely aligns with HandyScan RX 3. Improved IP rating (Target IP66) 4. Ruggedized housing 5. Connectors are protected from impact and ingress 6. Integrated stand and separate retractable handle easy to keep clean) 7. Touchscreen with ruggedized display glass 8. 3-Axis encoder input
>

Scatter Correction for Industrial Cone-Beam Computed Tomography (CBCT)

Download our white paper on Scatter Correction for Industrial Cone-Beam Computed Tomography (CBCT)
...
Using 3D VSHARP, a fast GPU-Based Linear Boltzmann Transport Equation Solver here: http://bit.ly/2Y0t78P
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window