Hello Prem,Ref: UG-99(b) of Section VIII, Division 1, "All loadings that may exist during this test shall be given consideration." It requires that the static head that exists in a tall vessel in the vertical position need not be considered separately when determining the test pressure in the bottom section. The test pressure as specified must be maintained as a minimum. UG-99 does not specify in which position a vertical vessel must be hydrotested.
The name plate and the vessel can be accepted. Regards, S Vagal
--- On Mon, 22/4/13, prem nautiyal <prem_nautiyal26@yahoo.com> wrote:
From: prem nautiyal <prem_nautiyal26@yahoo.com>
Subject: [MW:17511] Name Plate Hydro Test pressure
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Date: Monday, 22 April, 2013, 9:41 PM
Hi friends Vendor has fabricated a process equipment with skirt support as per ASME Sec VIII Div.1 The height is 11 metres and ID is 4.5 metres. The vessel is going to be erected at site in vertical position with skirt supports. The HydoTest Pressure specified on drawing for Vertical position is 14.5 Kg/cm2g. However Due to shop height restriction vendor is not able to conduct Hydro Test in Vertical position and has done hydro test in horizontal position adding the head difference ( for every 10 m height - 1 Kg/cm2g head to be added). So the actual Hydro Test Pressure conducted in shop is at 15.5 Kg/cm2g. Also he has mentioned the corrected hydro test pressure i.e. 15.5 Kg/cm2g on Name Plate. Nothing is mentioned about this corrected pressure in drawing or QAP. Is it correct ? Does the fabricator have to mention the actual tested corrected hydrotest pressure on Name Plate or the Pressure mentioned on drawing. Please give code reference. Regards Prem Nautiyal -- 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/ http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
|
--
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/ http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm 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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit
https://groups.google.com/groups/opt_out.
No comments:
Post a Comment