Hydrotest of Pipings

[Mohan]

Dear Experts,

Kindly confirm whether we have did RT 100% -weld joints for the piping means no need of hydro-test.

If yes share the code reference.

Code of Construction : ASME B31.3

Regards

G Mohanraj

[ViNo Varughese]

Dear Mohanraj,

NDT is not an alternate for Hydro test. Hydro test is a check on the integrity of the complete piping system.

Regards,

Vino 

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[atul khatri]

Hello Mohan,

Logically yes you don't require to have hydrotest if RT is done But ASME B 31.3 allows RT in lieu of leak test if both hydrostatic and pneumatic leak testing seems impractical to perform and at least one conditions mentioned in 345.1 (C-1 &2) shall be met. 

Refer interpretation number 22-16 for more clarification.

If client's specification / project design basis allows to do so than yes you can avoid hydrotest otherwise if its feasible to do than shall be performed.

Thanks 

Atul 

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[Eng.Mahmoud kamel]

Never , 

selection for RT 100% not mean no hydro test , only for golden joint which for few case hydro test not possible.

what ever you need you have to cover by Clint specification  and owner approval 

Best regards

mahmoud

00201009087426

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From: material...@googlegroups.com <material...@googlegroups.com> on behalf of Mohan <ggnan...@gmail.com>
Sent: Wednesday, October 23, 2019 5:18 AM
To: material...@googlegroups.com <material...@googlegroups.com>
Subject: [MW:30175] Hydrotest of Pipings

 

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[Kaushik bhagvandas patel]

Dear Sir,

Please see B31.3 Clause No.345.9 2016 Edition. Alternative Test of Leak Testing.

On Wed, Oct 23, 2019 at 10:58 AM Mohan <ggnan...@gmail.com> wrote:

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Thanks & Regard's


Kaushik Patel,
Surveyor,
Bureau Veritas - Gandhidham
Mobile: +91 9687000073.

[haren...@gmail.com]

Hello,

NDE(RT) and Hydrotest both having different purpose.

NDE are carried out to ensure the defect free joints and hydrotest is carried out for strength well as leak test.

NDE we are only doing at weld and their HAZ area. However before putting in the system complete piping system need to be tested.

 

Incase of golden/ closure weld where Hydrotest is not possible there 200 NDE shall be carried out but this is not applicable for all the joints.

 

Regards

Aakash

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