[MW:20037] Fwd: Hydrotest for buried line

Dear members,
please note the test pressure is 24 bar and holding tme is 4 hours.
Regards,
Kumar
---------- Forwarded message ----------
From: Kumar <sk7920541@gmail.com>
Date: Fri, 7 Feb 2014 16:03:34 +0400
Subject: Hydrotest for buried line
To: materials-welding <materials-welding@googlegroups.com>

Dear members,

We have lines of 32", 30" ,24" & 18" etc. for product lines(around 2
km long).construction codes are ASME B31.3 & 4. in between there is
underground portion forabout50mtrs.now the sub-contractor wants to
bury this joints prior to hydrotest (by fulfilling 100% RT). then at
the time of hydro pressure gauges will be monitored. but as per 31.3,
all joints shall be exposed at the hydrotest (345.3.1) & this is
un-acceptable for us as well. kindly share your views citing various
aspects of this situation.
Thanks in advance,
Kumar

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