I would like to know if it is acceptable for a pressure vessel, designed and built according to ASME VIII div 1 to be directly welded to the incoming & outgoing piping instead of flanged connection. I am discussing with a contractor who suggets to weld the piping directly to the vessel nozzles...
For a power piping designed to B31.1, is it mandatory to do a pressure testing (either hydrostatic or gas)? Under what conditions is one allowed not to do pressure testing. For example if the welds are radiographed, can the pressure testing be waived?
Thanks
Has any one got experience with regard to corrosion resitance of K55 versus L80 pipe in a seawater environment? The pipe would be used as casing/liner for mine dewatering bores. Down-hole submersible pumps would be installed inside the liners & water (sea water) is pumped to the surface.
Thanks
This relates to a reinforced Tee - 36" branch on 42" header for a steam pipeline. I wondered whether there was an upper limit as to the size of branch, in relation to the size of the header. I looked through the relevant caluses in B31.1 on branch connection, but I could not see any...
The main pupose of the vent diffuser is noise reduction. It will vent the steam into a pit filled with rock. The diffuser is required to create some amount of pressure drop in order to maintain a given upstream pressure.
I am looking at sizing a steam venting diffuser to dissipate steam from high pressure to atmospheric.
The diffuser will have a diameter of 24" with upstream pressure of 284 kpa. If we were to vent the steam through perforated holes (32mm) drilled into the 24" diffuser wall, how many...
What would be the maximum possible pressure drop for a vent station control valve with upstream pressure of 135psia and venting to a rockmuffler diffuser from where the steam pressure is further reduced to atmospheric. My question really is to confirm that the maximum pressure drop across the CV...
