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  Compressor Volume =  (VR + VP X .13368) X (MaxP / ATMP)  
  t (in minutes)  
     
    VR = Volume of Receiver in Gallons    
    VP = Volume of Piping in Gallons    
    Maxp = Maximum Pressure at Unload / Stop    
    ATMP = Atmospehric Pressure (Site Corrected)    
    t =  Time of Test from ATMP to MAXP    
     
    VR    
    VP    
    Total CF=    
    MaxP    
    ATMP    
    t     
    Compressor Output    
     
     
Volume of piping must include additions and corrections for elbows, tees, dryer vessel volumes…
Test is to be performed from zero pressure in receiver to maximum system pressure.
All drains, service valves, leaks…must be closed or corrected prior to test.
A minimum of three tests should be performed with the average of all tests used as test result.
 
 
Contact Accurate Air Engineering, Inc for options to correct your compressed air systems inefficiencies
Cerritos: 562.484.6370   San Diego: 619.401.8270
Bakersfield: 661.323.7597   Lodi: 209.334.4340