is 110% of DP)
Also refer earlier message posted in this group titled "Criticality of
Pneumatic pressure test vs Hydrostatic on piping system"
we should always remember that is necessary to evaluate
the design aspects of material selection for piping lines to be
submitted to pneumatic test: in these cases ASME B 31.3 require that the
materials be guaranteed against their brittleness at the ambient
temperature during pneumatic test.
Typical cases are the plants where the ambient temperature could reach
even minus 50^C (e.g. some parts of Russia).
-----Original Message-----
From: gajjalla surya prakash [mailto:gajjalla@gmail.com]
Sent: Monday, June 16, 2008 12:32 PM
To: materials-welding@googlegroups.com
Subject: pressure testing
dear members,
we are doing hydrotest for the piping systems and now facing the
problem of water scarcity ,and our customer praposes to perform the
pneumatic test .
for example hydrotest pressure is 60kg/cm2 what should be the
pneumatic pressure . where can we get this information.
surya prakash gajjalla.
--~--~---------~--~----~------------~-------~--~----~
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.
-~----------~----~----~----~------~----~------~--~---
No comments:
Post a Comment