Heat Exchanger - Tubesheet (Confined or Extended)
Heat Exchanger - Tubesheet (Confined or Extended)
(OP)
Are there any codes and rules that requires extended tubesheets (OD of the T/Sheet = OD of Girth Flange)to be used for certain cases or is confined tubesheets acceptable for all cases (Tema R).
The second question is, if lets say 10mm cladding thickness is required on the tubesheet, is it a standard practise to have one of the two expanded grooves in this cladded section?
The second question is, if lets say 10mm cladding thickness is required on the tubesheet, is it a standard practise to have one of the two expanded grooves in this cladded section?





RE: Heat Exchanger - Tubesheet (Confined or Extended)
rmw
RE: Heat Exchanger - Tubesheet (Confined or Extended)
RE: Heat Exchanger - Tubesheet (Confined or Extended)
Looks like rmw has already answered the second question correctly.
-Christine
RE: Heat Exchanger - Tubesheet (Confined or Extended)
RE: Heat Exchanger - Tubesheet (Confined or Extended)
rnw / meteng - if the grooves are in the base material how do you stop the tubeside fluid attacking the base material?
Extended tubesheets are again a client requirement.
If you use an extended tubesheet it is normally so that it can be used to hydro-test purposes (instead of using a test ring). In these case the tubesheet extension shall be calculated to withstand the bolt load during the hydrostatic test
RE: Heat Exchanger - Tubesheet (Confined or Extended)
Thanks.
RE: Heat Exchanger - Tubesheet (Confined or Extended)
Why seal weld when you can put a groove in the 10mm cladding and one in the base material?
Some clients do not like seal welds – check with your client
I am not an expert in heat exchangers - but in my experience and with the clients I have used a groove is always put in the clad part of the tubesheet