Can anyone please explain the following:
API 5L allows a range of sizing ratio for cold-expanded pipe 0.3 - 1.5%. However, many specifications and manufacturers narrow the range to 0.8 - 1.5% (no heat treatment). What is the reason to use lower limit 0.8 against of API 5L allowed 0.3%?
Cheers...
I was unable to find this topic clarified in previous posts. Which table should we use for a dual certified 316/316L flange? Table 2-2.2 or Table 2-2.3 of ASME B16.5?
Can the interstitial space in a self bunded dilute ethanol storage tank be vacuumed as means of controlling the inner shell integrity? The storage tank is not exposed to any external pool fire or any excessive heat. The vacuum is monitored by a vacuum switch to alert loss of containment. A vent...
I am trying to locate a high pressure air compressor driven by the fire pump engine (approx. 2500 psi), able to compress the air in several G-cylinders, to be used for air start of this NFPA 20 diesel engine (100 kW) fire pump. I imagine the delivery volume shouldn't be high, to minimize the...
Code changes! Refer link below:
http://www.hazardexonthenet.net/article.aspx?AreaID=2&ArticleID=31288
Finally, the common sense prevails?!
Cheers,
gr2vessels
The "pressure equipment" requisitioning engineer would normally specify the required materials certification to the level 3.1B or C per ISO 10474, depending on the hazard level and other conditions. However, it seems that the structural engineers tend to be a lot more lenient towards the...
Dear all,
Would anyone have information on the expected revision of the AS 1210, due on 15 Dec 2007. Is it still on, any info on the extent of revision?
Perhaps, someone from the board might give us an idea?
Cheers,
gr2vessels
Gents,
Here we go again.
Pls note that ASME VIII (2007 Edition) in Clause U-3 states that the "acceptable editions" of standards are nominated in Table U-3, and this Table references the superseded 1996 Edition of ASME B16.47 (large diameter steel flanges)and not the current 2006 version...
Gents,
Would be kind someone to advise if the sloshing wave height is to be considered in the design of external floating roof tanks, perticularly for the design of freeboard height?
Thanks anticipated,
gr2vessels
Hi all,
The Duplex pressure vessel on this FPSO has developed a small crack (3/4" long) on the reo pad's fillet weld (12" NPS inlet nozzle), since last inspected 12 months ago. Salt ladden environment and warm H/C condensate + salty water inside, 400 psig pressure.
Is there any maximum size for...
Gents,
I did the necessary reseach for the limitations on the use of stud weld - Duplex S/S studs 5 mm dia on 2.5 mm Duplex plate, without success.
The welding tests show that there is high ferrite content and high hardness developed at the edge of the weld, including the HAZ, which is pointing...
G'day to all,
Back in Nov. '03, the topic of spiral exchangers failure was debated and the consensus was that Alfa Laval didn't seem to have the fabrication under control, hence the H/E were prone to failure under certain circumstances.
I'm in process of evaluating a new SPHE design by Alfa...
G'day gents,
Could someone please advise if the WPS / PQR's are included in the list of documents under the review of PE (Manufacturer's Design Report), for a vessel designed to Div. 2?
Regards,
gr2vessels
