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  2. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    GPD [citation needed] ≡ 1 gal/d ... GPM [citation needed] ... ≡ change in the thermodynamic temperature T that results in a change of thermal energy kT by 1.380 ...

  3. Fixture unit - Wikipedia

    en.wikipedia.org/wiki/Fixture_unit

    The relationship between gallons per minute (gpm) and fixture unit is not constant, but varies with the number of fixture units. For example, 1000 FU is equivalent to 220 US gallons per minute (0.014 m 3 /s) while 2000 FU represents only 330 US gallons per minute (0.021 m 3 /s), about 1.5 times the flow rate.

  4. Volumetric flow rate - Wikipedia

    en.wikipedia.org/wiki/Volumetric_flow_rate

    Volumetric flow rate is defined by the limit [3] = ˙ = =, that is, the flow of volume of fluid V through a surface per unit time t.. Since this is only the time derivative of volume, a scalar quantity, the volumetric flow rate is also a scalar quantity.

  5. Gallon per watt-hour - Wikipedia

    en.wikipedia.org/wiki/Gallon_per_watt-hour

    G/Wh makes it easy for homeowners and plumbing professionals to quickly determine the energy efficiency of a pump. Simply stated G/Wh links efficiency and performance by illustrating how many gallons of water are pumped using one watt hour of electricity.

  6. Residential water use in the U.S. and Canada - Wikipedia

    en.wikipedia.org/wiki/Residential_water_use_in...

    Examples include a showerhead with flow rate of 1.75 gpm (6.61 lpm) at high water pressure and 1.45 gpm (5.48 lpm) at low pressure, or a showerhead with three pressure compensated flow rates (by non-removable pressure compensator) with options of 0.5, 1.0 and 1.5 gpm (1.9, 3.8, 5.7 lpm).

  7. Flow measurement - Wikipedia

    en.wikipedia.org/wiki/Flow_measurement

    The turbine flowmeter (better described as an axial turbine) translates the mechanical action of the turbine rotating in the liquid flow around an axis into a user-readable rate of flow (gpm, lpm, etc.). The turbine tends to have all the flow traveling around it. The turbine wheel is set in the path of a fluid stream.

  8. Flow coefficient - Wikipedia

    en.wikipedia.org/wiki/Flow_coefficient

    The metric equivalent flow factor (K v) is calculated using metric units: =, where [3]. K v is the flow factor (expressed in m 3 /h), Q is the flowrate (expressed in m 3 /h), SG is the specific gravity of the fluid (for water = 1),

  9. Gallon - Wikipedia

    en.wikipedia.org/wiki/Gallon

    General information; Unit of: Volume: Symbol: gal: Conversions (imperial) 1 imp gal in ..... is equal to ... SI units 4.54609 L US customary units ≈ 1.200950 US gal