Second quickie question I guess... Regarding writing dimensions
There are 2 dimensions for O rings... inner diameter and the diameter of the cross section. Example: 2x2mm --> ID=2mm OD=6mm.
Is this the same for pipe dimensions? I'm uncertain about the dimension 25x2.5.
Does it mean ID is 25mm and the walls are 2.5mm witch means OD is 30mm?
Or is 25mm the OD, the walls 2.5mm witch would make the ID 20mm? I think the ID is 20mm but I'm not so sure anymore because of the way O ring dimensions are written.
I didn't ask for O ring dimensions nor do I even need O ring dimension chart
But I found my answer by calculating the estimated weight of the pipe and comparing it to the advertised weight per meter... Pipe dimensions are Outer Diameter x Wall Thickness - which makes the ID 20mm in my example.
How much energy is stored in 100cc of air at 10 BAR, and 50 cc of air at 20 bar?
This should be a stupid question, but after trying to cross-reference several sources across the internet, I'm getting conflicting results; sometimes by a factor of ten. There is so much "air-car" spam out there it's nearly impossible to sort through the crap.
The numbers I came up with were 200 and 300 joules, repectively.
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