Replacement Parts

TECHNICAL DATA
214
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HYDRONIC SOLUTIONS CATALOG
conversions factors
conversions
1 U.S. Gallon = 231 Cubic Inches 1 Cubic Foot = 7.48 U.S. Gallons
= 0.1337 Cubic Feet = 0.0283 Cubic Meters
= 3.785 Liters 1 Liter = 0.264 U.S. Gallons
= 0.833 lmp. Gallons 1 Cubic Meter = 35.314 Cubic Feet
2 Imperial Gallon = 1.2 U.S. Gallons = 264.2 U.S. Gallons
= 999.97 Liters
to convert this to this multiply by
Q(m
3
/hr) gpm 
Cubic meters per hour Gallons per minute Q(m
3
/hr) µ 4.4 =
Q(L/s) gpm 
Liters per second Gallons per minute L/s µ 15.85 =
Q(L/min) gpm 
Liters per minute Gallons per minute L/m µ 0.264 =
P(kW) hp 
Kilowatts Horsepower kW µ 1.34 =
kW / 0.746 =
bar psi Absolute (psia)
Of pressure Pounds per square inch of pressure (includes atmospheric
pressure at sea level)
bar µ 14.5 + 14.7 =
bar psi Gauged (psig) 
Of pressure Pounds per square inch of pressure as it would be read on a
pressure gauge (does not include atmospheric pressure)
bar µ 14.5 =
psig Head, Feet 
Gauge pressure  psi µ 2.31 / sp.gr. =
Millimeters Inches (mm) µ 0.0394 =
Meter Feet (meters) µ 3.28 =
Centimeters Inches centimeters µ 2.54 =
Nm (Newton meter) Ft. Ibs. 
Measure of torque Foot pound of torque Nm µ 0.7376 =
°c °f 
Degrees Celsius Degrees Fahrenheit °c (9/5) + 32 =
Watts Horsepower Watts µ 0.001341 =
Watts Btu/hr 
 British thermal units per hour Watts µ 3.4127 =
Boiler Horsepower Btu/hr Boiler Hp µ 33479 =