Since psi is pounds per square inch it depends on what area you apply your 1 lb force to.
if you apply your 1 lb force to 1 square inch it will be 1 psi.
The wolf jaw can produce 3,200 psi pressure which inables it to crush bones and such.
Psi is a unit of pressure, that question makes as much sense as " how much Fahrenheit does a wallet have"
4,000 PSI working pressure
Pressure doesn't change when you change substance, 120 PSI in water equals 120 PSI in air.
Engine compression psi? Radiator cap psi? Engine oil pressure psi? Tire pressure psi? Fuel pressure psi?
14 psi14 psi
39 psi +/- 5 psi39 psi +/- 5 psi
49 psi +/- 549 psi +/- 5
104' minimum for 45 psi. 138' for 60 psi.
The inlet pressure can be as low as 45 PSI as long as there is a flow of about 3 gpm. The pump will easily pump it to 1500 psi through the appropriate nozzle
If it is fresh water, and the surface is at sea level, then the pressure at the surface is 14.69 psi. As you submerge, then the pressure from the weight of the water above you is added to the air pressure above the water. For each foot that you descend, the water pressure will increase by 0.4331 psi, so at 328 feet deep, the water pressure is 142.0568 psi. Add the 14.69 psi air pressure to get 156.7468 psi.
Oil pressure psi? Cooling system pressure psi? Tire pressure psi? Fuel pressure psi? Engine compression psi? Need more info please.