Term Other Versions Abbreviation / Acronym Classification Definition
Atmospheres atm Units of Measure

A unit of pressure measurement
bar BAR Units of Measure

A unit of pressure measurement equivalent to 100 kilopascals
Barrels per Day BPD Units of Measure

A unit of flow measurement
Barrels per Hour BPH Units of Measure

A unit of flow measurement
Brake Horsepower BHP Units of Measure
Centipoise cPs cP Units of Measure

A unit of viscosity measurement equivalent to 1 millipascal second
Centistokes cSt Units of Measure

A unit of viscosity measurement equivalent to 1 millimeter squared per second
Cubic Meters per Hour m^3/hr m³/hr Units of Measure

A unit of flow measurement
Foot Pounds, Pound Feet lb.ft. ft.lbs. Units of Measure

A unit of torque measurement
Gallons per Hour GPH Units of Measure

A unit of flow measurement (NOTE: slightly different in US and UK units)
Gallons per Minute GPM Units of Measure

A unit of flow measurement (NOTE: slightly different in US and UK units)
Kilopascal kPa Units of Measure

A unit of pressure measurement
Krebs Units KU Units of Measure

A unit of viscosity measurement
Liters per Hour LPH Units of Measure

A unit of flow measurement
Liters per Minute LPM Units of Measure

A unit of flow measurement
Millimeter Squared per Second mm^2/s mm²/s Units of Measure

A unit of viscosity measurement equivalent to 1 centistoke
Millipascal Seconds mPas Units of Measure

A unit of viscosity measurement equivalent to 1 centipoise
Net Positive Inlet Pressure NPIP Units of Measure

The absolute pressure required at the inlet of the pump to prevent cavitation, noted with suffix "A" for available from the system or "R" for required by the pump. Similar to NPSH.
Net Positive Suction Head NPSH Units of Measure

The absolute head required at the inlet of the pump to prevent cavitation, noted with suffix "A" for available from the system or "R" for required by the pump. Similar to NPIP.
Newton Meters Nm Units of Measure

A unit of torque measurement
Pounds per Square Inch PSI Units of Measure

A unit of pressure measurement
Sabolt Seconds Universal (or Saybolt Universal Seconds) SUS SSU Units of Measure

A unit of viscosity measurement