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Hi to all FEA specialists, I'm trying to obtain SIF values for custom-fab Y-laterals (for a flare line), to be inserted in an AutoPipe model. Was advised that the easiest way is to use Nozzle Pro as we have licensed access to it. Results of SIF came out to be: Source, Inplane...

Hello all, I would like to know what are the differences between: 1) Eddy current test 2) Magnetic-biased Eddy current test 3) Remote-field Eddy current test And also their applications please? Thank you.

Hi there, I've got steam letdown valve ofwhich the bonnet is made of 2.25Cr -1Mo. The internal of the bonnet has scouring marks due to the piston ring rubbing against the inside of the bonnet. Will Ni Cr 3 (Inco 82) weld rod be a suitable material to be used for the repair (to resist further...

Hi Eva, what about Carbonic Acid attack? Possible at such a pressure and elements ratio? Not sure about the temp though.

Hi there, I am currently trying to create a Level 2 spreadsheet for Part 9 Assessment of Crack-Like Flaws. However, I am experiencing a problem trying to understand how the Annex A3.4 (which is for Cylindrical Shells) works. The part which I do not understand is, each subpart which are (a)...

Hi, Currently, we have an intention to convert a methanol storage tank to store gasoline. The tank has internal floating roof. Issues which have been highlited are: 1) Ensure internal floating roof will operate OK with gasoline considering lower density (0.7g/mL c.f. 0.79g/mL) 2) Level...

Hi, Like to know the reason a plug has to be seal-welded to the tube of a heat exchanger. It just so happens in the plant I am working, when a Turnaround take place, all heat exchangers with tube seal-welded to tubesheet has to have the plugs seal-welded to the tubes as well. Thank you.

Sorry, I forgot to mention that I would like to do a rerating calcs for the existing pipe to see if it meets the new design pressure for the new equipment, 7240kpa. Thanks.

Hi, I have an existing pipe which has a design pressure of 6610kpa. A tie-in from a new equipment is to be done via a new pipe to this existing pipe. Like to know where I can find a guideline on the calcs. Thanks.

SnTMan, If a bundle is to be replaced, a budget foreast has to be made way before the Turnaround. The problem is, the budget was not to fit replacing the bundle. I am just talking about modification that can last for couple of years until the next Turnaround, and until then we will surely be...

Hi, What can normally be done if the baffles, tie rods, and partition plates are very badly corroded, totally useless, but the tubes are still in good condition? We are having turnaround currently and it only last for a month. I need to think of the most economical, easiest, practical and...

Hi, What does cold setting and hot setting on Spring Can pipe support means? If I have a cold and hot setting on a Spring Can pipe support on an isometric showing the same setting reading, does that mean there will be no movement on the pipe even during operation(hot). Thanks.

jt sorry i missed out on your q. yes, i used b31.3 for the calcs & the thkness was successful. cheers

Pongsason, In my opinion, the valve has to be tested first to see if it passes. If yes, then a blind is certainly required. In my case, the minimum blind thickness is acceptable which has to be in accordance with ASME B31.3 para 304.5.3. As to whether you will need a thin one will depend on...

Hi All, Test is done, all is well. Thanks for everything. By the way, I had a discussion with some PE and they agreed with the caln, it's cool. Thanks again

Hi to All the Great minds, I have a problem. We have a particular 16" superheated steam pipe support which utilises graphite composite plate about 1/2" thk as a sliding media. As we know, graphite has an excellent lubricating property and when reinforced with an organic matrix and resin yields...

Greg, Thanks alot for your help. FYI, I did flip through B31.3 but just simply didn't see it! :) harith07

Hi Greg, Thanks for the tips. Two q's: 1) Where is the 'd' in the formula? 2) Is the sq rt for the whole thing or just the numerator? 2) Where is this formula from? harith07

Hi, We have an exchanger of which we are trying to do a nitrogen test. The btm nozzle of exchgr cannot accomodate the thkness of the blind flange b'cos of limited space. So I have to calculate the new thkness of bld flg which can serve the test sufficiently. How can I perform this? Any leads...