Ecotech Environmental Corp.
Conversions and formulas
COMMON PIPE AREAS
1 inch pipe = .0054 square feet
2 inch pipe = .0218 square feet
3 inch pipe = .0491 square feet
4 inch pipe = .0873 square feet
LIQUID
GPM x 3.785 = liters per minute
1 gallon of water = 8.33 pounds
1 gallon = 3.785 liters
UNITS
1 inch of mercury = 13.57 inches of water
1 PSI = 27.68 inches of water
1 mile = 5280 feet
FUEL HEATING VALUES
Natural Gas = 1050 Btu per cubic foot
Refinery Gas = 1100 Btu per cubic foot
Diesel fuel = 137,000 Btu per gallon
Gasoline = 130,000 Btu per gallon
Propane = 94,000 Btu per gallon
GAS
1 cubic foot of Natural Gas = 1050 Btu
1 Therm = 100,000 Btu
1 Kwh = 3413 Btu
TEMPERATURE
Temp (F) = 9/5 x Temp (C) + 32
Temp (C) = 5/9 x Temp (F) - 32