Is Sensitive leakt test / Pneumatic Test can be considered as Substitute.

[pkkani...@gmail.com]

Dear Members ,

Please clarify that whether in any circumstances we could substitute RT with pressure / any leak test for services where RT is been included as a inspection method.

Regards

Pratish

[tdky167]

Dear Prakash ,

RT is applicable if its a Golden joint .  Hydrotest / pneumatic is done to check the integrity of the whole line.( welds and material ) . There are services which has 100%RT and pneumatic test as well . So I don't think RT is a option.

Sent from my Mi phone

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[George V Aliyattukudy]

Dear Pratish

I am considering the situation you have is on piping weld joint ( it’s not mentioned in your query). An hydrostatic leak test is only substituted with a service leak test when it is not practical to carry out one, the conditions for which are detailed in ASME B 31.3 para 354 Testing.   RT is not a substitute for a hydrostatic leak test.

 

George V Aliyattukudy

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[Kannayeram Gnanapandithan]

RT has got tolerance ( Some discontinuities are acceptable), so it is better to pressure leak test and RT is not substitute for leak test because while doing leak test some acceptable discontinuities may open which is hindrance in service

THANKS & BEST REGARDS,

KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

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[Lalu Rajendran]

Hi,

If RT s not possible, please go for alternate NDE methods such as UT upon your client's approval. We cannot say a joint is sound if it has survived the pressure/leak test. 

regards,

LALU

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[Kannayeram Gnanapandithan]

Normally Shop made Piping spools are not leak tested inspite of RT done but it will be done at site. So noway RT can replace leak test??

THANKS & BEST REGARDS,

KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

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[JIJILAL K M]

the objectives of RT and Hydro/pneumatic test is different. your quiery is not cleared whether it is related to pipeline,piping ,tank etc.

if ,there is a specific requirement / hindrance  or acquaintance on weld joint quality or integrity , RT is practically advisable  ,with out considering any code requirement.

JIJILAL K.M. 

​QA/QC Manager,Jurong Engineering Ltd​, Bangkok

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[dili...@gmail.com]

Correct

Sent from my BlackBerry 10 smartphone.

From: Kannayeram Gnanapandithan Sent: Σάββατο, 19 Μαρτίου 2016 - 12:56 To: materials-welding Reply To: material...@googlegroups.com Subject: Re: Re:[MW:24551] Is Sensitive leakt test / Pneumatic Test can be considered as Substitute.

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