High Temperature Piping Flanges Insulation
High Temperature Piping Flanges Insulation
(OP)
Dear All,
With most of the high temperature pipe line generally insulated, valve bodies and flange joints are typically not insulated. I have gone through piping specifications governing our piping and they have not recommended insulating the flange joints or valve bodies unless they are steam traced. As per my understanding one of the main reasons for not recommending insulation on the said locations is to allow early detection of leakages. Request your expert opinion on highlighting any other reason for not recommending high temperature piping flanges to be insulated besides the fact that insulation may mask small leakages. Thanks.
Regards,
With most of the high temperature pipe line generally insulated, valve bodies and flange joints are typically not insulated. I have gone through piping specifications governing our piping and they have not recommended insulating the flange joints or valve bodies unless they are steam traced. As per my understanding one of the main reasons for not recommending insulation on the said locations is to allow early detection of leakages. Request your expert opinion on highlighting any other reason for not recommending high temperature piping flanges to be insulated besides the fact that insulation may mask small leakages. Thanks.
Regards,





RE: High Temperature Piping Flanges Insulation
RE: High Temperature Piping Flanges Insulation
RE: High Temperature Piping Flanges Insulation
RE: High Temperature Piping Flanges Insulation
Request your views on this.
RE: High Temperature Piping Flanges Insulation
RE: High Temperature Piping Flanges Insulation
You made the points on the bolting side of the flanges, that is true. However this can be eliminated by selection the adequate materials which are recommended by the codes. In case the system is very important and does not accept any leak then you need to change either the flange/sealing types or use special bolting design for the purpose or both.
Making the equipment insulated all sides provide adequate stress distribution on the system. However you still need to be careful with cold start-up heating and shut down cooling of the system anyway.
RE: High Temperature Piping Flanges Insulation
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P.E. Metallurgy, Plymouth Tube
RE: High Temperature Piping Flanges Insulation
RE: High Temperature Piping Flanges Insulation