Why Seamless Pipe for High Pressure Oxygen?

I think this is really a much better way to answer questions like this.

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I am also in favor of modifying the rule against answering homework questions. We should only prohibit providing answers that are congruent with current accepted theory.

Novel unique solutions and methods of arriving at said solutions, would be a much more useful way to answer obvious HW questions.

Wow, nice lyn.

I like it, let's call that the Darwin answer!

You have 5 'Good Answer' ratings on your comment already, so I realize I am going against the crowd here....

'...to avoid turbulent flow...'

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Are you suggesting turbulent flow IS avoided?

O₂ isn't very viscous. It seems to me, O₂ lines would have to be monstrously wide to allow reasonable delivery and still have any hope of maintaining a laminar flow regime.

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'...the vortices that become sonic or near so, and this can be explosively disastrous.....'

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You seem to be implying that O₂ is an explosion hazard if it reaches sonic or near sonic speeds, or possibly if it is stirred to violently?

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What would be the chemical reaction for the explosion?

The only ones I can think of without something else in addition to the O₂ are not thermodynamically favorable...and so aren't really a worry.

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I think any requirement for seamless tubing is likely related to cleanliness or the possibility of pinholes.

"this can be explosively disastrous"

Oxygen will not explode, unless it is mixed with a flammable gas, in the correct proportions and presented with an ignition source.

You will note that Oxygen is not listed in table of lower explosive limit (LEL)/Upper explosive limit (UEL) of gases.

Lower and Upper Explosive Limits for Flammable Gases and Vapor