Re: [MW:16421] Painting of spool before hydrotest

Dear
There is an interpretation in B31.3 which clearly specifies painting
can be done on the welds prior to hydrotest. I will revert back with
the interpretation no.

On 11/24/12, Sam <samuvel.masilamani@gmail.com> wrote:
> Normally the weld joints will be painted after a long time from welding.to
> avoid the rust formation ,the joints can be primed with client approval
> prior to pressure test.also the overcoat interval to be properly followed as
> per paint manufacturer instruction.
>
> Regards,
> Sam
>
>
> On 18-Nov-2012, at 1:30 PM, Vino Varghese <vinopvarghese@gmail.com> wrote:
>
>> Dear Pradip,
>>
>> The reference is very clear. "MAY BE" and hence require Client/Design
>> Engineer acceptance prior to testing.
>>
>> Regards
>> Vino-Doha
>>
>> On Sat, Nov 17, 2012 at 8:35 AM, pradip kumar sil <pradipsil@gmail.com>
>> wrote:
>>> Dear Everyboby,
>>> As per ASME B-31.3 para 345.3.1 says "All joints may be primed &
>>> painted prior to leak testing unless a sensitive leak test (para.
>>> 345.8) is required.
>>> But as per ASME SEC V Shows leak test comes under :
>>> The specific test method(s) or technique(s) and Glossary of terms of
>>> the method in this article are describe in mandatory appendices I
>>> through X & non mandatory appendix A as follows:
>>> Appendix I—Bubble Test—Direct Pressure Technique
>>> Appendix II—Bubble Test—Vacuum Box Technique
>>> Appendix III — Halogen Diode Detector Probe Test
>>> Appendix IV — Helium Mass Spectrometer Test —
>>> Detector Probe Technique
>>> Appendix V — Helium Mass Spectrometer Test —
>>> Tracer Probe Technique
>>> Appendix VI — Pressure Change Test
>>> Appendix VII — Glossary of Terms
>>> Appendix VIII — Thermal Conductivity Detector
>>> Probe Test
>>> Appendix IX — Helium Mass Spectrometer Test —
>>> Hood Technique
>>> Appendix X — Ultrasonic Leak Detector Test
>>> My question is HYDROTEST & PHENEUMATIC test is comes under leak test
>>> as per ASME B-31.3 para 435.3.1. Can we paint the spool joint before
>>> hydrotest.
>>> Any referances for hydrotest/phenumatic test comes under leak test.
>>> Regards
>>> Pradip
>>>
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>>
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>
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>
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
>
>
>

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.