Hi,
I am wondering if anyone has experienced staining on duplex 2205 HRAP coil? Take a look at the photo and let me know if this is typical of 2205. This is the second time we have run across this on coil product.
Thanks
I have several heat exchangers that we are fabricating from N04400 materials. I am wondering if there is a code case availalbe for ASME Section VIII Div. 1 that would allow us to order welded pipe. Section II only lists the seamless.
Thanks for your help.
Would anyone be so kind as to enlighten me on the issues of creating a tubesheet of welded construction. I am working a bid for some equipment and I am having trouble finding a disk in the diameter required. I am afraid that the only viable option is to create the disk from 2-4 pieces of...
Has anyone ever had a problem with fatigue at a expanded double groove tube joint using titanium gr. 12. TS is fixed integral type constructed of Alloy 625. I know that titanium is susceptible to low ductility if over expanded.
Quick question, is it permissible to weld insulation pins onto 2205 or 904L after hydro test on Section VIII Div. 1 equipment? What are the restrictions on types of welds, tig, mig, resistance, etc. The pins are 3.5" long and the equipment has a long trip to job site and may require us to put...
I have a project that is requiring a 28" and a 36" 150# flange. I have determined that I will need a B16.47 Series A 150# flange since it incorporates MSS-SP44 specifications. I am trying to get the customer to use a slip on flange for the connections but as a worst case I will need to...
Would anyone share a supplier for alloy 31? I have a customer that is asking for a large heater made of alloy 31 but I am having trouble finding a vendor.
Thanks,
Jason
I am wondering if anyone has an approach to calculate the reinforcement required for a 24" hole in a 5/8" skirt. The supports are designed to ASCE7-05.
I am designing a tubesheet that is integral with the shell and channel and is constructed of 304 SS. The shell of the unit is 304 at 250 F and the channels are 304 at 250 F. When I input the information into my design software without an expansion joint, but using the plastic calculation I get...
I am wondering if it is acceptable to have a break in a vacuum ring. Our customer is asking that we put and internal ring in a plenum but it would run through the center of a nozzle. This is not standard practice by any means so I would like to get some insight from other professionals.
I am wondering what program is most used to perform a FEA on a fixed shell and tube tubesheet. My company is debating the idea of implementing some new software and I would like to get some trial versions to test. We design to ASME section VIII division 1.
I have a customer that is asking for a quote on a exchanger that has four tubesheets with rolled joints. It is almost like they are trying to put the 1st, 2nd and 3rd effect evaps into one unit then use a combination separator on the bottom. Material of construction is 304 both shell and tube...
Hi everyone,
I am designing a jacketed tank that is shown supported by a full ring on the jacket. My design software is not supporting this type of configuration and I am wondering if it is an acceptable design. I would prefer if it were supported on the main shell. The tank measures 72"OD...
Anyone have any information regarding training for Nozzle Pro. I am looking a book to start out with, like "Nozzle Pro for Dummies" or something like that. Any help is appreciated.
Thanks,
Jason
How would you go about designing a tubesheet that has a center feed pipe coming through? The tubesheet would be 24"OD and a 12-3/4"od hole surrounded by (196) 3/4"od holes.
My question is whether helical flights used to direct flow in a conventional jacket can be used as vacuum rings to stiffen the inner shell? Referring to UG-29 it doesn't reference this type of design. I would like to use the inertia equations in UG-29 and the pitch of the flights as my (L)...
