Recent content by SBlowers

Friends, We are using 1500# SA106B (xxs grade) material for 6" well flowline, which may possibly go to temp as low as below -5deg C. Is the impact testing required? Should we require to normalize SA106B? Or is it better to opt for low temp CS material? We do not prefer this due to high cost...

sorry forgot to mention the volume, 10000L

thanks bimr... intended to use as oily water tank mainly to collect rain water from plant equipment. SBlowers

can anyone tell about QC requirements for underground concrete water tank? design, material strength test, leak test etc

Looking for a range -30 to 120deg C

Thanks metengr....

Experts, The WPS what we have is for P No 1 Group No 1 or 2 to P No 1 Group No 1 metals. We require to weld P-1 Group 2 materials specifically SA516-70 to SA106 Grd C. Is the original WPS qualify for this job? Thanks....Blowers

Experts Need to know which is the most preferable low temperature piping material for above 600# system, whether carbon steel A333 Gr 6 or Austenitic SS. I know Austenitic stainless steels like 304 or 316 can be used at cryogenic temperatures as low as liquid helium temp (-269deg C). Are there...

A heat treated vertical pressure vessel needs replacement of top dished head. After welding the new head, does the vessel require to be heat treated fully or a partial heat treatment of top half would be sufficient? What are the general conditions to adhere for stress relief? Thanks, SBlowers

thanks gr2vessels... hmmm...AS1210 seems not been revised for more than a decade now! Is the 1997 the last edition and the original?

Peers, Pressure vessel constructed in US designed to ASME VIII Div 1 which specifies Hydrotest pressure 1.3xMAWP, does the local regulations in NZ require the vessel to be re-hydrotested to 1.5xMAWP according to AS1210 for registration? Thanks

David, I agree to your point and understand client's requirement. My query was to check whether the API code specify annual in-service inspection requirement for Pressure relief devices. This is not to argue or teach my point to the client! Cheers....SB

I am working in the Middle east for a contracting company. My client needs the Pressure relief devices to be visually inspected (in-service) every year. Our Onstream inspection program is every two years which cover pressure relief devices as well. Is there any mandatory requirement to...