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This option is available in the flange design wizard of Compress. Just check the box for "Enforce maximum bolt spacing and apply bolt spacing correction factor". Regards, D2HANDLE

I am confused again...... B16.34 is the standard for Valves — Flanged, Threaded, and Welding End. Are you sure you are referrring to this B 16.34? Also, the materials allowed for wrought fittings are all mentioned in Par. 5 of the standard, and I cannot find any reference to B 16.34 for the...

metengr, I was talking about the wrought butt welded fittings such as Elbows, tees, Reducers etc. in accordance with ASME B16.9. D2HANDLE

Hello SnTMan... Thanks for the post which seems very logical explanation of the reason 316L is not included in UHA-44. However, could you please share your thoughs as to what happens if we apply the dual certified 316 / 316 L material? The design temperature limitation in Section II Part D and...

Hello all... Thanks a lot for the great posts and your valuable insights... Well...to be frank , i am yet to check the reinforcement requirements.. I also do agree..nozzle neck is a must between the elbow and head..and that is the way i have seen the nozzles all of my life..But the Piping...

Hello all, I am working on a Pressure vessel designed to ASME Sec 8 Div. 1 Code with design pressure of 120 barg. The Vessel dia. is 1050mm and it has an ellipoidal head at top. Piping configuration requires that the projection of nozzle at the centre of top head be kept to a minimum, and...

Hello metengr - I am a little surprised with your statement

Morcuse, I think you need to look at 13-9 of App 13 which covers the calculation for rectangular vessels with stayed construction (partition plates act as stays). Moreover, please read 13-9 (f)(2)which allows you to calculate vessels with multiple compartments by selecting the maximum...

Hi doct9960. Thanks for presenting the interpretation.. However, please consider that the interpretation also clearly mentions that the rules of 1-7 (a) & 1-7 (c) can be applied for hill side nozzles. But it does not mention so for 1-7 (b). 1-7 (b) provides rules for calculating membrane and...

Hello TGS4, MJC and Rookpe1978 for your valued opinions. I am also not sure how and why sand filling shall be able to contain the release of harmful gases from the pit, should this happen.But there shall be a concrete slab at the top of pit and this may help for leakage issue in some way...

Hello all, I am working on a vessel which is to be installed in a concrete pit. The pit will be filled with sand after installation of vessel as per local regulation requirement to prevent leakage of the process gas to outside atmosphere. Vessel operating temperature is 230-C and the material...

Jakov11000, I believe rules in 1-7 are not applicable to non-radial nozzles and this is clearly menteioned in the Code. D2HANDLE

SnTMan, Thanks for sharing your opinion...

Hello all, I need a clarification regarding the application of UCS-68(b) The equipment concerned here is Steam Airpreheater which basically consists of steam flowing in the tubes and air flowing across the tubes such that air is heated as it flows across the tubes. The mechanical construction...

Adnan1268, Assuming that your Heat exchanger is also required to conform to TEMA, did you check RCB-11.23?? This para provides a way to increase the bolting moments when the actual bolt spacing exceeds the maaximum recomended bolt spacing.Make sure this requirement is complied with when...

I understand that if Code allows SA 333 Gr 6 to be impact tested to -48C, testing and using this material at -49C is no big deal... The main question that i wanted to have answer to is ....what is the limit???? If there is a case where MDMT is say...-55C or -60C or -75C, can I still apply Gr. 6...

@georgeverghese, Thanks for your opinion... This is an Electrical Heater and shall be used intermittently only when a Compressor on the downstream starts and needs to be supplied with Nitrogen before start-up.Once the Compressor is up and runnning, the Heater will be shut down. MDMT of -49 has...

Thanks to all the experts out there...

Dear all, I am currently working on a Process heater which has Nitrogen as the operating medium and operating temp. is -49C. Required MDMT is also -49C. Vendor has proposed to apply SA 333-6. However, as per ASME Section II Part A, SA 333-6 is impact tested at -45C , so standard SA 333-6 cannot...

SnTMan, I would double you on this one....such holes are a commonplace in almost all Heat Exchanger girth flanges designed as per Appendix 2 of Code...i never seen any "Design calculations" for all such small holes.Hope the same applies to ASME B 16.5 flanges also.. D2HANDLE