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The link below may provide some insight. Link

See attached document. Attached are guidelines I use for ASME B31.3 piping (lines up with most of our client's standards as well) for a "visual analysis" meaning old school expansion hand calculations are acceptable for a combination of diameters & design temperatures. Once you get into a...

If the highest load case is only at 20% of code allowable (ASME B31.3?)and the new expansion joint's spring rate is only 10% different from the one used in the model, I would bet that everything is fine.

Thank you LittleInch. I am not sure what the internal well tubing is made of. I know that in other areas they are utilizing something called Fiberspar.

The service of this pipeline is salt water with a small percentage of hydrocarbons. We are running piping to a salt water disposal well and there is a situation where we need to have a section of metallic piping and the design pressure is 3,500 [psig]. Temperature is ambient 0°F < t < 100°F...

You should be using Caesar II or a similar software to perform your stress analysis. The software will dictate what gap size will be required. Mainly it depends on geometry, design temperature and, if applicable, wind loading.

Thanks a lot guys that is very helpful.

I was involved in designing a rail car offloading system at a petroleum terminal and now that it is operational the operations folk are not entirely ecstatic about how it turned out. There is a pump that offloads 3 rail cars at the same time (runs at 800 gpm). The issue is that the rail car that...

Johnny, It has basically the minimum amount of straight run pipe; five pipe diameters before there is a 90° bend. Attached is a few screenshots of the piping layout. Can you elaborate on, "This can be very difficult to suppress with excess NPSH...

About 6 months ago our client installed a Sulzer APT 53-6(O), a pump I selected, and we have been receiving reports from the field that they are having issues with it. It operates 3 gasoline truck loading arms. The problem is when one arm is operating the pump sounds like a concrete truck...