My experience pretty much follows the PMBOK guide which states:
"Scope Verification differs from Quality Control in that Scope Verification is primarily concerned with acceptance of the deliverables, while Quality Control is primarily concerned with the correctness of the deliverables and...
Make that 4 responses, we use pressure control in liquid lines exactly as CJKruger has stated above, to maintain the upstream equipment in the liquid state and prevent flashing.
PeterCharles
I agree standard (large capacity/ bulk commodity) hexane extraction plants would not typically have any form of pressure requirement on the elevator, however this was a small scale speciality plant which had a potential for pressurisation during certain "normal" operating states...
PeterCharles
The example I mentioned was for an edible oilseed, solvent extraction plant where the elevatyor between the extractor and desolventiser had been specified at 1 Barg. I was involved in the overall project but not specifically with the elevator design. I think it was a Tramco type...
PeterCharles
I certainly would agree that a "standard" bucket elevator should not fall into the PED.
As you say even though you can get pressure shocks in a bucket elevator they are designed to operate at atmospheric pressure which is obviously less than 0.5 barg. For the PED anything that is...
If the equipment is for use in a potentially hazardous atmosphere and its duty also meets the definition of the pressure equipment directive it would therefore need to comply with both the PED and ATEX and it would need to be shown on the declaration(s) of conformity associated with the CE mark...
What do you mean by "what are the circumstances here?"
As the article mentions there has to be a differential pressure otherwise there is zero storage of "useable air" no matter how big the receiver is. The amount of differential pressure is what determines the storage volume. You could have a...
Try Spirax Sarco, there is a lot of good information and learning materials on their website but they also run courses.
They have locations in a few places in the USA including Houston.
Have a look here http://www.spiraxsarco.com/us/pdfs/training/2009TrainingProgram.pdf
Be careful with the assumed 2" straight flange. As Bimr has pointed out above a lot of manufacturers use 1.5" for the straight flange and that has certainlybeen my experience over the last too many yers.
We had some vessels designed and manufactured to ASME a year or so ago and we had to have the designs checked/ approved by a local authority in Australia.
The only design change they made was to the hydro test pressure.
We used HSB both in the USA where the vessels where fabricated and also in...
If 2007 is anything like the 2005 that I have then you should be able to migrate the licence from your old PC to the new one using the "portable licence utility" that is part of Autocad.
Be careful how you are reading the DIN 2527 spec sheet. Dimension D9 is not the diameter of a raised face, it is significantly smaller. If you look at the drawing it appears to be an island in the middle of the flange which is simply not required to meet the machined surface requirement.
For...
