Psi’s-14.696
psia to psig psig - 15 15 - 15= 0 psig
psia=psig+atmospheric pressure where, atmospheric pressure = 14.7psi therefore psig=psia-atmospheric pressure psig=100-14.7 psig=85.3psig
70 psig
psig
0.5 psig is equivalent to 13.8 inches of water column.
55 psig +15=70
50 psig is equivalent to 64.7 psi. To convert psig to psi, you simply add the atmospheric pressure at sea level, which is about 14.7 psi.
PSIG refers to pound/force per square inch gauge, while PSI measures the pressure relative to a vacuum. If you want to convert a figure from PSIG to PSI, you would need to add 14.7psi to your PSIG figure, which will give you your PSIA result.
10 psig
Using the ideal gas law equation P1V1 = P2V2, with initial pressure (P1) = 10 psig, initial volume (V1) = 30 ft^3, final volume (V2) = 25 ft^3, we can solve for the final pressure (P2). (10 psig * 30 ft^3) / 25 ft^3 = 12 psig, so the new pressure would be 12 psig.
1 bar = 14.5 psig so 3.5 bar = 51 psig (what your significate figures)
28.6