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We have some in-service pipelines we will have to determine mechanical properties. In the past, I have sent cut pipe cylinders of abandoned pipes to the lab for mechanical testing and obtained the results I needed. Can anyone recommend a tool that can provide information on Yield strength and...

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Hi, My question is regarding steel pipe fittings. I understand there are various wall thicknesses available for line pipes. 1) My question now is are the wall thickness for the butt weld fittings (elbows, tees, reducers etc.) limited to light weight, std., x-heavy etc. In other words, can you...

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Thanks. I spoke to another engineer here at my work place. Again, Thanks

Hi, What is the minimum test pressure requirement and duration(for transmission pipe) in class 3 location if gas is the test medium? This is for pre-installation test of short pipe. Thanks

Alright. Thank you LittleInch.

Thank you.

Thanks. However, I want to put the question in this way. Is there any provision in any code that allows for installation of "pretested pipe" together with factory made bend/elbow (like 3R 45 deg Ell) without hydrotesting the entire system? Please, let me know if you know of any such clause. Thanks

Hello All, Does anyone know of any pressure testing requirement or code for pipeline elbows. I am talking of gas pipelines - Transmission and High pressure distribution pipelines. For instance, what is required when pretested pipes are installed with elbows? Thanks

Hello All, I'm reviewing a work order for already installed line and I came across "Full encirclement saddle." My question is: Is this a pressure containing component? I know that it may have a vent hole, but I want to know if a full encirclement saddle is pressure containing or non-pressure...

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I meant to say Lt. wt. steel fittings (elbows, reducers etc) of different sizes. I am asking to know what the longitudinal seam factor would be. For instance seamless or ERW = 1 as longitudinal factor. Thanks

Are Light weight fittings (eg. elbow, reducers) always seamless? Thanks

Thank you. I think big inch is correct.

I have short stopp fitting described as below. Is the information enough for me to determine the ANSI rating, max. test pressure and design pressure respectively? If yes, kindly explain more. Thank you 8" shortstopp fitting full encirclement 300 ser.

Thank you!

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Hi, I am new to Pipeline Industry. Please, during pipeline hydrotest, where is the dead weight placed? At the low point or high point? I will appreciate any further explanation of this concept. Thanks

Thank you, LittleInch!