Recent content by Sam35

It seems ASME Sec. VIII Div.2 has similar requirments. Refer to Fig. AD-610.1 (d-1).

I am not clear if there is a minimum weld size requirement on the inside of a nozzle which is welded as a full penetration weld to a cylindrical shell. The configuration is as per Fig. UW-16.1(e) of ASME Sec. VIII Div.1 but has an internal projection of say 2". There is no repad required as the...

Thanks Arto. Where can I find that paper (tried @ asme.org already - no luck yet)

I am looking for some guidance on the above subject - textbooks or user friendly fea software. My understanding is ASME Sec. VIII Div.2 does not cover this issue. Thx Sam

Hi, I don't have a structural background. I am looking for some info. on the above, a spreadheet or some literature could be useful. Thanks, Sam

Is there a standard corrosion allowance for vessels / piping in ammonia refrigeration service.

Has anybody got a quick formula to find the location of Center of gravity on a 2:1 SE Head. Thx, Sam

Hi Leonard, Looks like Nozzle-pro deals with circular flat heads and not rectangular flat heads. Thx, Sam

Edward, I don't think if API-661 addresses this issue. Sam

I want to add a 3 NPS nozzle to a rectangular header box (3/4" thk) of an air-cooled heat exchanger. The opening does not meet the requirements of UG-36(c)(3) of ASME Sec VIII Div.1. Also, the diameter of the opening exceeds one half of the shortest span of the head as mentioned in UG-39(c)...

Are SAE J 429 Grade 8 bolts acceptable for use in a piping system built to B31.3. Does B31.3 recognize Grade 8 bolts?

I am looking for some guidance in the design of a blow case with cyclic loading conditions and external pressure. I think that ASME Sec VIII Div.2 - Appendix 5 does not provide much details on this. Can some one provide me some details on how to proceed or where I can get some guidance from.

Sorry, The bolts are: Grade 8.8 Hexagon Bolts DIN 931 / BS 3692 and not SAE Grade 8 bolts.

Sorry, The bolts are: Grade 8.8 Hexagon Bolts DIN 931 / BS 3692 and not SAE Grade 8 bolts.

have 2 questions. 1) Is SAE Grade 8 bolts acceptable to use in a piping system built to B31.3. Does B31.3 recognize Grade 8 bolts? 2) Is there an equivalent ASTM material for LT50 (under published literature), which I believe is a British Standard material, so that this LT 50 ( custom flange )...