I guess you have to request to replaced your third party, he's probably a newbie. We always test our pressure vessels horizontallly whenever possible.
Code of construction should be ASME Sect VIII Div 1?
Interpretation: VIII-1-95-27
Subject: Section VIII, Division 1 (1992 Edition, 1993 Addenda); UG-99(b)
Date Issued: January 12, 1995
File: BC94-414
Question (1): Does the last sentence of UG-99(b) of Section VIII, Division 1, "All loadings that may exist during this test shall be given consideration," require that the static head that exists in a tower in the vertical position must be considered when determining the test pressure in the horizontal position?
Reply (1): No.
Question (2): Does UG-99 specify in which position a vertical tower must be hydrotested?
Reply (2): No.
Subject: Section VIII, Division 1 (1992 Edition, 1993 Addenda); UG-99(b)
Date Issued: January 12, 1995
File: BC94-414
Question (1): Does the last sentence of UG-99(b) of Section VIII, Division 1, "All loadings that may exist during this test shall be given consideration," require that the static head that exists in a tower in the vertical position must be considered when determining the test pressure in the horizontal position?
Reply (1): No.
Question (2): Does UG-99 specify in which position a vertical tower must be hydrotested?
Reply (2): No.
Hope this helps
On Wed, May 18, 2011 at 3:26 AM, Venkateswaran <k.venkateswaran@ionexchange.co.in> wrote:
--Hi,all
One of our 3rd party inspector refused to witnessed hydro test of unfired pressure vessel because the actual site erection of vessel is vertical but we offered vessel Hydro at horizontal due to space restriction. vessel diameter 3000mm X 3200 mm longx12 mm thickness.
Construction code ASME section IX.
What is the reason behind the position in doing Hydro test,what will be effect/reason for rejection if the vessel was tested in horizontal position and any standard says regarding this condition.
Pl. suggest.
Regards,
K. Venkateswaran
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