Instruction manual

81
Technical RefeRences
SI Conversion Factors
Multiply By To Obtain
Length and Area
Millimeters 0.0394 Inches
Meters 3.2808 Feet
Sq. Centimeters 0.155 Sq. Inches
Sq. Meters 10.764 Sq. Feet
Volume and Mass
Cubic Meters 35.315 Cubic Feet
Liters 0.0353 Cubic Feet
Gallons 0.1337 Cubic Feet
Cubic cm. 0.061 Cubic Inches
Liters 2.114 Pints (US)
Liters 0.2642 Gallons (US)
Kilograms 2.2046 Pounds
Tonnes (metric) 1.1024 Tons (US)
Pressure and Flow Rate
Millibars 0.4018 Inches WC
Ounces/sq. in. 1.733 Inches WC
Inches w.c. 0.0361 Pounds/sq. in.
Bars 14.50 Pounds/sq. in.
Kilopascals 0.1450 Pounds/sq. in.
Kilograms/sq. cm. 14.222 Pounds/sq. in.
Pounds/sq. in. 0.068 Atmospheres
Liters/hr. 0.0353 Cubic Feet/hr.
Cubic Meters/hr 4.403 Gallons/min.
Miscellaneous
Kilojoules 0.9478 BTU
Calories, kg 3.968 BTU
Watts 3.414 BTU per hour
BTU 0.00001 Therms
Megajoules 0.00948 Therms
Conversion Factors
ASME Conversion Factors
Multiply By To Obtain
Length and Area
Inches 25.4 Millimeters
Feet 0.3048 Meters
Sq. Inches 6.4516 Sq. Centimeters
Sq. Feet 0.0929 Sq. Meters
Volume and Mass
Cubic Feet 0.0283 Cubic Meters
Cubic Feet 28.316 Liters
Cubic Feet 7.481 Gallons
Cubic Inches 16.387 Cubic cm.
Pints (US) 0.473 Liters
Gallons (US) 3.785 Liters
Pounds 0.4535 Kilograms
Tons (US) 0.9071 Tonnes (metric)
Pressure and Flow Rate
Inches w.c. 2.488 Millibars
Inches w.c. 0.577 Ounces/sq. in.
Pounds/sq. in. 27.71 Inches WC
Pounds/sq. in. 0.0689 Bars
Pounds/sq. in. 6.895 Kilopascals
Pounds/sq. in. 0.0703 Kilograms/sq. cm.
Atmospheres 14.696 Pounds/sq. in.
Cubic Feet/hr. 28.316 Liters/hr.
Gallons/min. 0.2271 Cubic Meters/hr.
Miscellaneous
BTU 1.055 Kilojoules
BTU 0.252 Calories, kg
BTU per hour 0.293 Watts
Therms 100,000 BTU
Therms 105.5 Megajoules
Abbreviations
ASME American Society of Mechanical Engineers
BTU per hour British Thermal Units per Hour
CFH Cubic Feet per Hour
CGA Compressed Gas Association
CSST Corrugated Stainless Steel Tubing
DBC Diameter Bolt Circle
DOT Department of Transportation
FNPT Female National Pipe Thread
FPOL Female POL Portion of CGA 510 Fitting
(See POL)
GPH Gallons per Hour
GPM Gallons per Minute
MNPT Male National Pipe Thread
MPOL Male POL Portion of CGA 510 Fitting (See POL)
NFPA National Fire Protection Association
NPT National Pipe Thread
POL Generic Term For A Compressed Gas
Association Fitting #510
psi Pounds per Square Inch
psid Pounds per Square Inch, Differential Pressure
psig Pounds per Square Inch Gauge
SAE Society of Automotive Engineers
SCFH Standard Cubic Feet per Hour
SCFM Standard Cubic Feet per Minute
SCMH Standard Cubic Meter per Hour
PTFE   Polytetrauoroethylene
UL Underwriters Laboratories Inc.
UNC   UniedNationalCourse
   (Denesathreadform/shape)
UNFLH   UniedNationalFine-LeftHand
   (Denesathreadform/shape)
WC Water Column
WOG Water Oil and Gas