The air pressure should be 2-3 psi LESS than the pressure switch cut on. If you have a good 30/50 switch, then 27-28 psi air is good. (this is measured when tank is almost empty of water.)
Total pressure with this switch should never be more than about 58 psi
The water pressure depends on the residual air pressure in the tank. Normally it should be between 30 -50-psi. Tank air pressure is important, it should be about 27-29 when water is nearly empty.
The answer depends on the coefficient of thermal expansion of water, and the increase in pressure would be very small. In fact, between 0 and 4 deg C, water contracts and so the pressure will drop!
40-80 psi.
Mechanical pressure will not split water into its component elements.
It depends on which pressure switch you have. The total pressure with a 60-80 switch is about 84 psi.
When water is placed under pressure it lowers its boiling point. Therefore, if you put it under pressure you can heat it to temperatures much higher than 100 C. However, if you lose that pressure, say by breaking the tank holding the pressurize water, the water will quickly boil off and can cause explosions due to the rapid expansion of the vapor.
You should not really have over 80 pounds of pressure. But a lot of people do. NO -- even with high pressure it should work ok
That would depend on the temperature /pressure as the coeffient of expansion per degree
To replace a 3/4 pressure reducing valve should be $400-$500 9/12/12 md
To replace a 3/4 pressure reducing valve should be $400-$500 9/12/12 md
The work done by the gas during the expansion is equal to the area under the pressure-volume curve on a graph of the process.
Normally pressure tanks come with about 30 p.s.i. pressure in them,but depending on the type of water system you may need to adjust the pressure. You always want the pressure of the empty tank to be less than the turn on pressure of your pressure switch on your pump(if you have a pump) about 5 p.s.i. less should do it.