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  • Users: steven17
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  1. steven17

    Motor Speed Turn Down Ratio

    I have a 40 HP, inverter duty, 1800 rpm motor fitted with VFD for sewage pumping application. Can this motor speed be turned down 6:1, i.e. down to 300 rpm without overheating issues?
  2. steven17

    Compressed Air Receiver

    I have a 1000 gallon air receiver charged at 150 psi. If I lose 100 gallon air due to consumption, what will be the resulting air pressure in the tank? I want to know the pressure drop relationship between fixed receiver tank size with initial pressure and resulting pressure due to air withdrawal.
  3. steven17

    Short Body Check Valve

    I need a 42 inch swing check valve for raw sewage service. Due to piping limitations, I am looking for a short body (such as wafer style) swing check valve for sewage pumping application. Full size check valve won't fit. Any suggestions (make and model)?
  4. steven17

    Short Body Check Valve

    I need a 42 inch swing check valve for raw sewage service. Due to piping limitations, I am looking for a short body (such as wafer style) swing check valve for sewage application. Full size check valve won't fit. Any suggestions (make and model)?

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