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PSI drop per 100' length of pipe

Select your pipe diameter from the left hand navigation and use the tables to determine the Pounds Per Square Inch drop per 100 feet of schedule 40 steel pipe. As a general rule of thumb, the higher the initial Line Pressure (PSIG), the lower the pressure loss per length of pipe.

For lengths other than 100 feet, the pressure drop is directly proportional to the ratio of difference in lengths.

Example:

  • 200' Pipe would result in a pressure drop of 2x the value seen in table.
  • 25' Pipe would result in a pressure drop of one-quarter the value seen in table.
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