Re: [MW:16017] Painting of spool before hydrotest

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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