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Volume, Pressure, and Force Estimator

Petersen Multi-Flex plugs "generally" do not slip in a water pipeline if the inflated contact length is approximately 1-1/2 times the diameter and the inflation pressure twice the pipeline pressure. However the coefficient of friction can vary significantly depending on the product in the pipeline and the smoothness of the pipe. This requires any inflatable plugs to be blocked or tethered against slipping when slipping may cause damage or injury. In any case personnel should "never" be down stream of any inflatable plugs.

Please fill all Plug Diamater and Contact Length
                                     
     
     
      Pipe Plug Volume Estimate Calculator (These are estimated values only)       Cylinder End Total      
      Enter Contact Length and Diameter Contact Diameter Gallons Cu Ft Cu Yds. Cu Liters Water Kga Water Lbs.   Cu Inches Cu In Cu Ft      
        Length In Inches                          
      114, 124, 128 Series        
                                     
      Pressure vs. volume Conversion Air Inflation PSI Cu Ft @ Atmosphere                
      (assumes constant temp.)                              
                                     
      129 Series              
                                     
      Pressure vs. volume Conversion Air Inflation PSI Cu Ft @ Atmosphere                
      (assumes constant temp.)                              
                               
      Std. Contact length = .75 X Diameter on the 114 series and 1.5 X Diameter on 124,128, & 129 Series Plugs                  
                          7.48   0.004951131 3.78541178   8.35
                         
      Pipe Plug Slipping Force Estimate Calculator (These are estimated values only)    
      Enter Pipe Diameter and one of the below pipeline pressures              
          Slipping Slipping            
          Force Force   Pipeline Pipeline Water Water  
          Kga Lbs.   PSI Bar Ft. Head Ft. Meters  
      Diameter Inches                
                         
      Water Depth, Inches from Invert    
                         
      Water Depth, Feet from Invert    
                         
      Water Depth, Meters from Invert    
                         
      Pipeline Pressure PSI    
                         
      Pipeline Pressure Bar    
      The coefficient of friction can change based on internal pipe smoothness and product in pipeline