Posted by: Lim
Fixed Tubesheet MDMT - 07/31/18 05:38 AM
Hihi,
Designing a fixed tubesheet heat exchanger where tubesheet extended as flange and welded to shell. Tubesheet material is SA765 GRII with impacted tested due to required MDMT is -10degC.
However, from PV Elite report found that tubesheet@shell side MDMT is 18degC by referring to curve B which is the same curve as shell material. Any reason? Should not be each component evaluated for impact test requirement based on its individual material classification?
Thanks you.
Designing a fixed tubesheet heat exchanger where tubesheet extended as flange and welded to shell. Tubesheet material is SA765 GRII with impacted tested due to required MDMT is -10degC.
However, from PV Elite report found that tubesheet@shell side MDMT is 18degC by referring to curve B which is the same curve as shell material. Any reason? Should not be each component evaluated for impact test requirement based on its individual material classification?
Thanks you.