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The optimum capacity is from 10 to 20 m3/h (5.9 to 11.8 CFM), allowing the desired vacuum level of 1 mbar to be obtained in a reasonable amount of time. Vacuum pumps are machines that convey gas from a closed space, thereby Using this equation the useful power, using the suction side volumetric flow. Displacement vacuum pumps. Kinetic vacuum pumps 7 bar pressure when calculating the 'Suction capacity as a function of vacuum' chart ( 28). The rate at which materials vaporize under vacuum is a function of the pressure in the system and the vapor pressure of the material. A more in-depth Use the Equation: Force = Pressure X Area to determine: • Lifting capacity of the pump and cup. • Required vacuum area, i.e. diameter of the cup – see cup The customer requires a total capacity of 100 SCFM at a vacuum level of 24” Hg at sea level. Inlet line losses, including inlet filters, are 2” Hg. To calculate