N2 and pressure (bars) ?

[blackheart3]

I'm finding it difficult to find a 5 L cylinder with 200 bar, the seller tells me that he only has cylinders with many L above, I was unsure about how to buy it, I don't know if the price will increase, but I have doubts regarding the pressure? Is it really necessary for the cylinder to have 200 bar?

 

[Kapsyl]

No it's not necessary that the cylinder is at 200 bar, I think American cylinder are typically around 150ish? My point is that a 150 bar cylinder is fine, but require a bigger cylinder to match the 5 liter 200 bar one.

It sounds like the seller typically deals with the big welding cylinders which are typically on a trolley. You could probably buy an empty cylinder online and fill it at your seller.

Just keep an eye on the total volume and you will be fine.