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Dear Rocco, Thanks for your reply I would like to clarify my question: you are right the bolt design(no.,size,...) depends on operating and hydrotest conditions and according to ASME Sec.VIII app.2 we can calculate and size the no. of required and size of the bolts .we also find out the stresses...

i need a reference for the required bolt forces/torques in design case and hydrotest conditions of heat exchangers.any one can help?

In ASME SEC.VIII Div.1 APP."S" due to rigidity design we will have to perform some calculations which may modify flange design. do we need to check the rigidity in hydrotest condition? since we will have 1.3 times the design pressure in hydrtest condition this may cause some...

i do not have any standard or guidline for selection of gaskets (variouse types of gaskets as per ASME SEC.VIII DIV.1 APP.2)due to design condition (temp.,press.,service,...) of heat exchanger. i wonder what is the margin for selection of spiral wound,groove, flat or etc. should any one have any...

i'm working as a mechanical designer of shell & tube heat exchangers for 5 years but still not satisfied with the suitable selection of expansion joints for the following reasons: 1-thick wall expansion joints: these types of expansion joints are exclusively designed by TEMA standard with all...

personally working with both B-jac and HTFS I prefer B-Jac as a design tool for mechanical design of shell & tube heat exchangers. for thermal design i would like to suggest HTFS which is much more reliable. for other types of exchangers like plate& frame, double tube and etc. actually i have no...