Dear Limesh, Your test pressure shall be in between 30% to 80% of pressure gauge total readings. Thanks. Shibu
--- On Thu, 7/10/10, RAJAGOPAL KANNAN <rajagopal.kannan@gmail.com> wrote:
From: RAJAGOPAL KANNAN <rajagopal.kannan@gmail.com> Subject: Re: [MW:7422] Dial indicating pressure gages - Range for hydro testing To: materials-welding@googlegroups.com Date: Thursday, 7 October, 2010, 14:37
Dear Limesh, It is 200 bar/ 0.3 to 200 bar /0.8, shall be the range of the gauge used. Thanks, K.Rajagopal
On Thu, Oct 7, 2010 at 12:57 PM, limesh M <limesh78@gmail.com> wrote: Dear All, ARAMCO specifies "The gauges must have a range such that the pressure specified for the test is between 30% and 80% of the full range". Could you please explain the meaning of the sentence.I couldn't understand the meaning as it slightly weird.If I want to test a line with a test pressure of 200 Bar,what would be the range of pressure gauges as per Saudi Aramco standard? Regards, Limesh On Thu, Oct 7, 2010 at 12:40 PM, Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com> wrote: Since this posting does not contain a meaningful subject line hence was not posted in the group, instead I am directly replying with changing the subject line. Members are requested to take care hence forth. Dial indicating pressure gages used in testing shall be graduated over a range of about double the intended maximum test pressure, but in no case shall the range be less than 11⁄2 nor more than 4 times that pressure. Digital reading pressure gages having a wider range of pressure may be used provided the readings give the same or greater degree of accuracy as obtained with dial pressure gages (UG102(b) for Sec VIII div 1 vessels). And many of the company standards indicate this requirement, for e.g. ARAMCO specifies "The gauges must have a range such that the pressure specified for the test is between 30% and 80% of the full range". Dear All Can you please confirm as to which standard / code call for a Pressure gauge rating to be 2 times the test pressure of the equipment . The second question is what do you mean by the term Mil Thanks and regards Nachhattar Singh Director Phone: 91-22-42333600 Extn :624 - + 91-98201 81158 Fax:+ 91-22-42333607 Moody International (I) Pvt Ltd 406-410, NAVKAR CHAMBERS, 'B'Wing Marol Naka , Andheri-Kurla Road , Andheri ( E ) , Mumbai Maharashtra 400 059 India | RSTS & EDN are wholly owned subsidiaries of Moody International and are leaders in HSE Consulting and Training | | Moody Group Confidentiality Note: The information transmitted is intended only for the person(s) or entity to which it is addressed. It may contain confidential and/or privileged information or material. Any review, retransmission, dissemination to other use of, or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. __________ -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ 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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