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Is it necessary to use the "W" factor in the calculating thickness for pressure piping? Trying to change a pipeline and would like to know the reason for considering this in the calculations. Thanks.

Good day all, Can anyone give some insight into determining the corrosion rate of a carbon steel pipe? I have minimum thickness readings, nominal thickness, corrosion allowance, piping class, and will like to get the rate of degradation of the pipe. Thanks

Good day all, Can anyone give some insight into determining the corrosion rate of a carbon steel pipe? I have minimum thickness readings, nominal thickness, corrosion allowance, piping class, and will like to get the rate of degradation of the pipe. Thanks.

I will check the site. Yes I'm looking for voids, strength, degradation, etc. I'm also looking for a potential partnership with a person/company to offer the service in Trinidad, west indies. I am part of a large organization which does advanced NDE and asset integrity in plants in the...

Good day all, 2 issues - 1. I'm looking for a way to inspect concrete, for eg the posts/piles holding up a reformer. Can anyone assist with an appropriate method or supplier? I know there are the methods to check the rebars etc, but are there any further inspection techniques to determine the...

Good day all, 2 issues - 1. I'm looking for a way to inspect concrete, for eg the posts/piles holding up a reformer. Can anyone assist with an appropriate method or supplier? I know there are the methods to check the rebars etc, but are there any further inspection techniques to determine the...

If you have a PM scheme, you can use the past inspection data as well failure data to develop an inspection frequency. Some PSV manufacturers give a 2yr inspection period, but again this may or may not be 'shelf' period. You may have to take into consideration the environment and operating...

rb, how can someone answer the question without those relevant information? should we answer in vocabulary? if so, we should have opened a sco sci forum....i wanted to believe that the question required a direct answer, not any run around....

where is the load concentrated ir distributed? do i treat it as a cantilever? what sort of load would it be subjected to?

Try here.... http://www.asametech.com/index.html?gclid=CNbFg9mQyZsCFeFM5QodrlIJKQ

Your sequence looks good. would try and see if it lines up!...

What are your thoughts about the following. I would imagine that this would be no different than a 4, 8 or 24 bolt sequence.  Number the bolts consecutively (clockwise) 1 through 280 starting with any bolt.  Then tighten in this order:  1, (1+n/2), (1+n/4), (1+3n/4) where n is the number of...

280 bolts is not very common though...its the chart i'm searching for. i did the sequence once already manually, but doesn't line up. need to redo!!, unless someone has it their archives.

whilst your information is valuable, to come up with a sequence for 280 bolts is very tedious. one mistake, and the whole thing goes wrong.

Does anyone have a copy of the bolting sequence for a 280 bolt fllange? it's tiresome to manually work out this sequence.

Phased Array may apply!!!...

very interesting...i had a scenario in a well known company where there PSVs were actually set higher than the pressure rating of the pipeline. luckily it was fixed before anyone got hurt.... improper re-seating can also be a guide to know if it had lifted...

Can anyone tell me how nitrogen i would need to pressure test a (diameter) 5" pipe, 150ft long. Test pressure 250 psi. Just need a confirmation... Thank you.