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title [NGHI SON REFINERY PROJECT VIETNAM]: specification for Radiant coils of heater
writer company NSRP
writer Ha Quang Nam
writer email nam.hq@nsrp.com.vn
writer phone 0389917516
date 2020-09-14 hit 9
첨부파일 #1 : VS2156-001-A-431_4.pdf
Dear JNK,

I am Nam, Mechanical Engineer of NGHI SON REFINERY AND PETROCHEMICAL LLC.

When i checked the radiant coils of JNK heater, i have some concern about
description about the return bend.

For pipe : 219.1 O.D x 15.6 MW SEAMLESS PIPE. I understand that the minimum
thickness of pipe is 15.6mm.

For return bend : 219.1 O.D x OUTER 14MW x INNER 22.5 MW S.R RETURN BEND. it
mean there are 2 minimum requirement thickness for return bend. it make me
confuse. So, please support to clarify this point.

Thank and best regard !



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