Hi.
I have two questions about AWWA C207 flange types.
1. Is there any specific difference between steel-ring flanges and steel-hub flanges?
2. What is criterion when you choose the type between the two types?
Hi.
I've struggled to find definition of "Nonstructural attachment" in B31.1-2022 para. 127.4.9 and accidently found the definition in BPVC Section III Div.1 NB-1132.1.
The question is that does the definition be applied to B31.1 as well although it is in BPVC Section III Div.1 NB.
Hi Guys :)
I found Code Case 183-5 which is updated code case about P92.
I've been curious about(c)-(-c), which could be a PWHT exemption condition.
So, I found 127.4.9 of ASME B31.1-2022 and there is a expression "Permanent Nonstructural Attachments".
My questions are below.
1) What exactly...
Hi.
I have a question about water density over 1 atm.
It could be a simple question but I don't know how.
I have two questions.
1) the way to find out the water density by pressure and temperature over 1 atm(Diagram or equations and so on)
2) density difference between saturation pressure and...
Hi guys!
I'm here again.
I'm organizing PWHT requirement using excel.
I have to write only one thickness on a excel table.
My team leader said the table makes people so confused because of two thickness(control thickness, nominal thickness) on one table.
Example of the table is like this...
Hi guys!
I found discordance between B31.1 Table 132.1.1-1 and ASME BPVC Sec.8 UCS-56, So I ask you which one should apply.
In Table 132.1.1-1 of B31.1 2018 Ed., control thickness is criterion for PWHT.
But in UCS-56 of ASME BPVC Sec.8 2021 Ed., nominal thickness is criterion for PWHT.
And for...
Hello.
My team director asked to organize preheat standard and PWHT standard.
One of references the director gave me -outdated standard- showed that one is from ASME code.
I struggled to find out the methods on ASME B31.1 and BPVC Section 9.
But I couldn't find it.
Is there anyone who knows...
I'd thought two types mean A335 P91 Type 1 and Type 2, but recently thought that maybe I misunderstand.
I mean, maybe Types in the table doesn't mean Type 1 and Type 2.
So, I bought ASTM A335-21 pdf file yesterday and tried to find out, but failed.
Does the types in the table mean ASTM A335 P91...
Thank you for kind answer, TGS4.
But I have one more question.
At Table 2M, You wrote that Note 1 was removed.
But, There isn't Note 1 at 550 Celcius degree.
Does it mean Note 1 was totally removed from Table 2 and 2M?
I mean, 1050 Ferenheit degree and above, 550 Celcius degree and above...
One of my senior engineer asked me to find out the latest data of SA335 P92.
I found out 2179-10 but I can't find out.
I got 2179-9 but I want to find out whether there is any difference between those two.
Is there any change?
Especially, I want to ask about maximum allowable stress.
