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Many thanks for your help, I'll check out the EN 10088-3.

Thanks for your help! I'll check out EN 10088-3...contacting directly to my supplier could help as well. PD: sorry for the inconvenience concerning the double threads.

Hi everyone, I would like to know which is the the EN standard of the following materials (bar shape) in which appear its yield strength according to the rise in temperature.: - 2.4360 (Monel 400) - 2.4602 (Hastelloy C-22) - 2.4819 (Hastelloy C-276) - 2.4856 (Inconel 625) In the standard DIN...

Hi everyone, I would like to know which is the the EN standard of the material 1.4542 (known as 17-4-PH) in which appear its yield strength according to the rise in temperature. Thanks in advance.

Hi everyone! Could anyone tell me where I can find in the Code ASME VIII Div.1 that it is allowed to test with air (for set pressure testing) relief valves marked for liquid service? According to UG-134(d)(4), pressure relief valves marked for liquid service shall be tested with water or other...

That's true for the minimum wall thickness of the body. But for the minimum flange thickness of the bonnet (in order to justify the joint between the body and the bonnet) I need the maximum stress limit of the material because I am applying the ASME VIII Div.1 Appendix 2 (2-5, 2-6, 2-7, 2-8)...

According to the code case 1750, this material is for bodies, bonnets, yokes, housing and holders for Pressure Relief Devices. What I need to desing is a body and bonnet with this material. That's the reason why I needed the stress limits. If not, how can I justify its minimum flage thickness?

metengr, I really appreciate your interest for this thread. Let me tell you that what you are indicating me is in case of a "new code case", but in this case the material A494 M35-1 already appears in the existing code case 1750. According to the ASME VIII Div.1 about code cases, once a...

Could you tell me, please, where can I find the ASME protocol for the code cases? What I thought is that following the indications of each code case, would be enough to apply it. In this particular case, the code case only shows the maximum design temperature, pressure and size. Therefore, I...

Hi everyone, Where can I find the minimum blowdown for PSV according to ASME VIII Div.1? Is it the same as ASME I (not be less than 2%)? Thanks in advance.

metengr, You are right, this material appears in the code case 1750. But how can I know its stress limits in order to justify its use? Many thanks.

Hi everyone, Why does not appear the material SA 494 M35-1 in ASME II Part-D? However, it is in ASME II - Part B... I need to justify its use for a pressure vessel according to ASME VIII Div.1. Thanks in advance.

Hi everyone, What kind of material certification do I have to request to my supplier when we want to purchase ASME material? Just ASTM? Both? I mean, we can use A479 316 (bar) to produce some parts not subjected to pressure, but for the valve's nozzle it has to be SA479 316. They are both the...

Hi everyone, Is there a direct formula to calculate the required orifice area of a safety valve only with the following parameters? - Cross-sectional area of the heat exchangers tubes - Maximum allowable low side pressure (in that case, the shell) - Maximum allowable high side pressure...

Main manufacturers of safety valves have gray cast iron variants. Most of them are using the material 0.6025/GG-25 which is A126 Class B, the same one that appears in ASME B16.1 for flange fittings. For that reason, I was wondering where I can find its stress values in ASME VIII or ASME II. Thanks!

Hi everyone, Where can I find the maximum allowable stress values of A126B in order to justify the desing calculation of valve body wall thickness and flange thickness? According to ASME B16.1 this is the cast iron which has to be used for flange fitting but, on the other hand, there is no...

Hi everyone, Where can I find the maximum allowable stress values of A126B in order to justify the desing calculation of valve body wall thickness and flange thickness? According to ASME B16.1 this is the cast iron which has to be used for flange fitting but, on the other hand, there is no...

Hi everybody, Where can I find any reference in the European Standard (EN-13445, EN-12516,...) related with threaded joints to valve bodies? In ASME B16.34 exists the point 6.4 which explains the tensile or shear area that has to be met, but I have been not able to find the same in the...