Dear Aisf,
What type of fluid using in cross country pipe line crude or gas ,then only you have decide the value of preheat and PWHT ,correspondingly refer ASME 31.4 or 31.8
Regards,
Sethuramalingam.P
Sr.Engineer-FQC
India
On Wed, Jan 13, 2010 at 8:06 PM, ASIF <asifdme@gmail.com> wrote:
Dear all
how to determine the values of Preheat or PWHT for Cross Country Pipeline Welding (As per API 1104)
Like we refer 330 & 331 tables of ASME B3.3 for process piping
& Non-mandatory Appendix R & UCS-56 of ASME SECVIII div 1 for PV
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Best Regards;
ASIF IQBAL SYED
CSWIP 3.1-38557,
ASNT-Level II (RT, UT, MPT & LPT)
0091-99750 163 55
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Regards
Sethu Ramalingam.p
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