ASME B31.3 process piping Hydro in Lieu of RT

[Chaudhary Zafar Iqbal]

Dear Experts ,

due to time concentrate we are unable to do the RT as we need to arrange the RT crew and ID's process for site access  ...........

as per drawing 5% RT is required .

we can perform hydro of tie in joints ? 

can you please advise for the reference from ASME B31.3  ? 

Best Regards,

Zafar Iqbal 

00966544639978 

[Karthik]

Hi, 

There’s one option in B31.3,- U341.4.1.

A weld coupon examination in accordance with para. U344.8 May be used in lieu of 5% random radiography/ultrasonic examination required in para. 341.4.1(b)(1) when the following  are employed in fabrication.

1. Autogenous automatic welding 

2. Automatic orbital welding with the use of consumable insert rings.

There is no option for hydrostatic in lieu of RT.

Karthik

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On Friday, October 15, 2021, 1:13 PM, Karthik <karth...@yahoo.com> wrote:

Hi, 

There’s one option in B31.3,- U241.4.1.

A weld coupon examination in accordance with para. U344.8 May be used in lieu of 5% random radiography/ultrasonic examination required in para. 341.4.1(b)(1) when the following  are employed in fabrication.

1. Autogenous automatic welding 

2. Automatic orbital welding with the use of consumable insert rings.

There is no option for hydrostatic in lieu of RT.

Karthik


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[Adnan Ziad]

tie in must to be radiofraphie or other NDE and its not include in hydro test 

As per Para 345.2.3 (c) of ASME B31.3 you can either do 
100% RT or 100% UT. If Project Specification asks for, you may have to 

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[Chaudhary Zafar Iqbal]

Dear Respected Members/ experts ,

Greetings 

Thanks for the response from Mr Khatrik and Mr Adnan regarding my previous query .

i would like to ask for the Category D fluid ? what is it ? 

as per ASME B31.3 Minimum Temprature is -29 degree centigrade what is maximum temperature is it in asme b31.3 ? .

Fig 323.2.2A

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[Karthik]

Hi,

Please refer B31.3- para 300.2

Karthik


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[james gerald]

Please see flowsheet for classification of Fluid categories.

Thanks & Regards

J.Gerald Jayakumar

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