In the US for example the standard is 110V for voltage and 80psi for water. In Europe, voltage is 220V, is water pressure different there too?
80psi
different there too?
Of course, because psi exists only inside Usa. The real world does not use body parts for measurement anymore ;-)
It’s 120V and 240V
Is that substantial though or is it like calling 120V something like 110V/115V?
Hes just being pedantic. Reality is US houses get a +120v and a -120v supply. Combine them is how you get 240v.
sorry dude thats not right. first off houses recieve AC power which cycles between positive and negative at 60hz ~120v rms in north america. they achieve a potential difference in voltage by basically taking a phase of power, splitting it into two lines and then lagging one line by 90° usually with the use of capacitance from what i was taught back in the day(Good ol ELI the ICEman). this phase shift now gives you a potential difference between those two lines of 240v and 120v between phase and ground. need to use phasor algebra with AC power. when dealing with 3 phase power you still wouldnt just add 120v plus 120v when going phase to phase, you would multiply 120v by the square root of 3 which gives you 208v.
Not European, but I think they might not use PSI since that’s Pounds per Square Inch. I believe they use Pascals/ Bar.
Doesn’t really matter the unit of measurement. Kinda like hp/ps or lb-ft/nm, there are equivalents. I’m more interested in the values, but you do have a valid point there.
Afaik water pressure is variable based on each city’s design needs.
Everyone else is focusing on whether the rest of the world uses metric and not that fact that water pressure at a given faucet or shower head will be governed by bernoullis equation which will take 99 things into account such as:
The max height of the water reservoir
The height of your faucet
The design of the pipes leading from the reservoir to your faucet
Air pressure
The pumps in the system
Etc
And the location of the house/apartment. Houses higher up have lower water pressure and in apartment buildings the upper floors have lower pressure than bottom floors. 1bar of pressure lifts water 10 meters high. When constructing heating lines on a new building we might have the heating on on the first 3 floors despite the ends of the pipes leading to upper floors still being open and half of the building missing. The water wont spray out as long as we keep the pressure low enought that it doesn’t rise to where the pipes end.
Australia uses kilopascals rather than PSI. Our standard is 500kPa which works out at around 72 PSI.
