8 ounces
8.75 iwc
10 inches of water column equals to how much gas pressure?
14 inches equals one pound of natural gas pressure
7" W.C. X [(0.577 ounces/ in2)/ (1" W.C.)]= 4.039 ounces/in2 Therefore, 4 ounces-gas pressure.
.4 psi
1 psig is equivalent to 51.71 mm (2 in) of mercury or to approx 700 mm (27.5 in) of water. Technically one cannot have apsig. Psig represents a pressure reading of the pressure above normal atmospheric pressure of 14.7 psi. You mean a psi.
Low pressure - 6 to 7 inches water column, equivalent to 4 ounces or 1/4 PSI, is the standard pressure supplied by natural gas utilities in the USA and Canada. Check with your local utility if you need to increase the pressure for your use. Most natural gas appliances manufactured for use in the US are designed to operate up to a maximum of 14 inches water column.
mean and dirty a one foot column of water will produce 1/2 psig head
33 feet equals 1 atmosphere or 14.7 psi.
0.5 psig = 420.62 inches of water column.
0.25 psig = 413.7 inches of water column
The density of mercury is 13.534, compared to '1' for water. So the water columnis 13.534 times as high as the mercury column at the same pressure.(30 inches of water) x (25.4 millimeters/inch) / 13.534 = 56.3 millimeters of mercury