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Re: [MW:32450] Pneumatic testing requirement

By Materials & Welding
Hi,

If the test is as per ASME B31.3 the pneumatic leak test can be carried out with painting.

The standard straightly restricts insulation before testing as per 345.3.1 for all testing.

Painting before testing is not allowed for Sensitive leak tests which are described in 345.8.
The pneumatic Leak Test is covered in 345.5.

But many CLIENT SPEC RESTRICTS THE PAINTING BEFORE HYDRO TESTING.


Regards
V. Kingsly Geo

On Tue, 20 Apr 2021 at 11:39, Vinoth Rajendran <rajvinoth1987@gmail.com> wrote:
Hi,

ASME Section VIII Div. 1 UG-100

Unless permitted by the user or and his designated agent, pressure retaining welds painting not permitted before the pneumatic pressure test.


Thanks & Regards,
Vinoth. R

On Tue, Apr 20, 2021, 10:19 Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:
it is better to do it in black condition including base material to ensure no leakage.

THANKS & BEST REGARDS,
KG.PANDITHAN, BE, IWE,  CSWIP 3.1,
ISO 9712 Level 2 in VT,
ASNT-Level II in PT,MT,RT & UT,
LA ISO 9001-2015,
International Welding Engineer. 
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349


On Tue, Apr 20, 2021 at 8:32 AM Alcindo Jardim <alcindoj@gmail.com> wrote:
No
You must take off the paint of the weld....

Em seg, 19 de abr de 2021 09:40, Manish Kumar <mkmkr431@gmail.com> escreveu:
Dear Sir,
Please advise for pneumatic testing, if Welding joint is covered from painting.Can we witness for pneumatic testing of weld.

Please advise in this issue.

Regards

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