Re: [MW:25576] Hydrostatic leak testing

 Unless otherwise a concession is made prior to painting, the joints must be exposed during pressure test

We have done such primer paint application with prior company/contractor approval

Regards

Sam

On Thursday, 20 October 2016, Kumar <sk7920541@gmail.com> wrote:

Dear Prem,

The provision to do priming & painting is only optional ( "may be ").
So vendor cannot argue that it is mandatory to be painted !! You may
tell such paintings may mask pin-holes or any other seepages during
test. An amicable agreement to be made.

Also all welds should be exposed means - NOT to be hidden (like
undergrond joints) or to make insulation etc.  doesnt mean couldn't be
painted..

Hope this info helps you little.

Regards,
Kumar.

On 10/17/16, 'prem_nautiyal26' via Materials & Welding
<materials-welding@googlegroups.com> wrote:
>
> Dear all
> Vendor has offered piping spool for hydrostatic test after painting.
> Code of construction is ASME B31.3. Category M fluid service.
>
> Vendor argues that as per ASME B31.3 clause 345.3.1 all joints may be primed
> and painted prior to leak testing.
> However same clause also mentions that all joints Welds shall be left
> exposed for examination during leak testing which is contradictory.
> Nothing is mentioned in hydro test procedure about painting.
> How to accept ?
> Regards
> Prem  Nautiyal 9769316004
>
>
> Sent from my Samsung Galaxy smartphone.
>
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