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  • Users: Newbie2211
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  1. Newbie2211

    Questions regarding AWWA C207

    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?
  2. Newbie2211

    Definition of Nonstructural Attachment in B31.1

    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.
  3. Newbie2211

    Questions regarding PWHT exemption requirements of A335 P92 and A234 WP92

    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...
  4. Newbie2211

    Water Density by Pressure and Temperature over 1 atm

    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...
  5. Newbie2211

    How to convert Control thickness to Nominal thickness?

    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...
  6. Newbie2211

    Discordance between B31.1 and Sec.8 regarding Thickness for PWHT

    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...
  7. Newbie2211

    Regarding preheating methods by P-number and thickness on ASME codes

    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 One of references the director gave me -outdated standard- showed that one is from ASME code.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...
  8. Newbie2211

    A335 P91 Type in Table A-2 of B31.1-2020

    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...
  9. Newbie2211

    Change of ASME Code Case 2179-9 to 2179-10(SA335 P92)

    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.

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