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oops...too many things in head....please disregard my commnet.

That is the actual plan. Decrease the gap between the pipe and pivot head and increase the oveall thickness of the sealant . Planning to do one at a time. Just seeking advice.

I am designing a jack screw. It pulls and pushes a pivot head inside a pipe. The pivothead is basically a piston with sealant around it. The pivot head is smaller than the pipe, but the sealant is slightly larger than the pipe. The jack screw basically pushes the pivot head with the sealant...

I once went to my professor with a question and he showed me the library building from his office (literally). It is the eng-tips forums that gave me the answer to his actions ( mine too). I am a shameless student and hope to stay the same way. Agree to both replyers above.

Could you please elaborate your corrosion inhibition system. Maybe you could get away with NACE approved materials along with the basic engineering calculations.

I want to know if the following materials are NACE MR 0175 compliant, These are used to make fittings, equipment or accessories that are used for hot tapping. All of the products would be in contact with the H2S. Thanks in advance. Pipe Cutter body, back plate,and holder 1. SA 283 GR. D 2...

Reverse engineering in my opinion could have as many definitions as we want. It depends upon who is doing it. It could be as similar to world class athletes watching the games of their competitors or it could be similar to not only copying the design but also "forgetting" to change the...

I don't know about big companies, but having the following in my resume got me a job not long ago. Try the following in your resume (Please Google and make sure you know the basics of the following) - Basics of GD&T - Basics of P&ID - Understand the basic Hydraulic Schematics -Understand the...

Thanks Guys. I am aware of ASME B31.3 Table A-1 , ASME II - D, ASME B31.8 Scope ..802..., ASME B31.4 ..400.1.2..(c) 2..I wanted to see if I missed anything. But again, now that I have more confidence due to your opinion, thank you again. I am trying to understand the scope for some piping...

Duwe6, Misquoting was not my intention. I was just trying to cheat. I am from the manufacturing world. We have set out own boundaries where B31.4 and B31.8 have common guidelines. YOur statement has provided answer to the part that I was trying to cheat. Thank you. But, my primary question...

This is solely my opinion. 80/4 ~20……. 70/3.5 ~20 Let’s say the listed minimum TS of the CS that makes the vessel is 70 ksi. While performing the burst test, the vessel is not going to rupture at 70 ksi, rather it will withstand stress higher than this value, as 70 ksi is the minimum TS of the...

I would like to apologise before I start my question again. I had asked this question in my other post in a different section. Please pardon me if this is a violation. The temperature derating factor provided for ASME B31.8 stops at 450'F. Does this mean that gas piping ( B31.8)can be designed...

Got it. Thanks.

I am trying to find out if there is a list of materials, yield derated against temperature, that is applicable to ASME B31.4/B31.8. 841.11 (a) lists a general formula of design pressure. The temperature derating factor is obtained per 841.116A This has also aroused another question in my mind...

TGS-4, thank you. Could you please explain the numbers 1 - 9 in the material pointer ( PYS) column ? You could also only provide me the page number that explains those numbers. Thank you again.

Please pardon me for an unclear qustion. Does ASTM have anyting that is similar to ASME II-D, but for yield values ? Thank you.

What area of oil and gas industry are you looking at ?

Pennpiper, I apologise for my outburst. You were there to help me. I had a specific reason to state that I did not want opinions.I think this triggered my impression of being rude.But, my outburst did prove it...My apology to you and the community.Please accept my apology. Guys, I am not for...

Duwe, If you google you will find a categorisation in the European code as "temporary fittings". Please tell me if I am wrong.

I follow several things for pressure increments, i. ASME VIII-1 UG 101 h ii. Design calculations and safety factor ii. Volume of the test vessel iii. Test Pressure