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Hello, We are purchasing two kins of CSA pipe ;CSA Z245.1 CAT.II gr.483 42" OD x 15.3 mm WT M5C and CSA Z245.1 Cat.II gr.483 42" OD X 22.2mm WT. M45C CSA Cat. II pipe is required Charpy V-notch impact test and shear fracture test at temperature stated in purchase order. The problem is that...

Hello, I have a question on calculation of piping wall thickness. According to Appendix A table A-1 in ASME B31.3, CSA can be regarded as equivalent to API 5L, for example, CSA Z245.1 Gr.550 vs. API 5L X80. In Table A-1 basic allowable stress of API 5L Gr.X80 is limited to use up to max...

Hello folks, I have encounterd the following problem despite installing Window 98 successfully. " Cannot find a device file that may be needed to run Windows or a Windows application. The Windows registry or SYSTEM.INI file refers to the device file, but the device file no longer exists...

Thanks for your good explanaion to my question. Frankly, I am trying to learn AutoCad 2D & 3D from now on. Could you please recommend me how I can learn AutoCad effectively? I am really interested in piping design for refinery plant using PDS but I am just wondering if this PDS shold be...

Hello folks, I'd like to know about difference between autocad solid modeling and microstation software tool. I hope to hear your response it even though it is a basic question. Thanks. YONG HEE KIM

I neet to know how much electrical resistance value is from plug to spindle and spindle to body. According to our clent's specification the value should not have greater than 10 ohms. I am not sure if it is correct. so if anybody would answer it, I would appreciate it.

I have been reviewing client's piping spec but the spec is indicated ASTM A 671 pipe made from A515 Gr CB50, 65 and 70 steel shall not be used. I would be apprecated if someone let me know the reason. YONG H. KIM

I would like to know about minimum requirements for PWHT in pressure vessel contacting with wet sour H2S, lean and rich amine, HF and caustic. if PWHT is specified generally in the purchasing spec of pressure vessel, the manufacturers' can be embarassed to see if they have to carry on PWHT for...

what do you mean by your comment?

You can refer to ASME B.16.5 up to 24 inches and ASME B.16.47 above 24 inches for flange working pressure and ASME B 31.for hydrostatic pressure test of pipeline.

I am a little bit confuging to use ASME and ANSI Code in specifications. When we use these codes in specifications, I want to know about exact use of these codes,for example, ASME/ANSI B.31.3 is correct or ASME B 31.3 is correct? otherwise both of them can be used ?) In addition, in case of...

I want to know about seal weld and where it is used to. I appreciate it if you inform me of reference sources in website. YONG H. KIM

I want to know which one is correct among the following three when flange pressure rating is indicated: ASME/ANSI 16.5 CLASS 300 RFWN ASME 16.5 CLASS 300 RFWN ANSI 16.5 CLASS 300 RFWN Thanks YONG H. KIM

Hi there, What is the size of this pipeline? YONG HEE KIM