Pumps and seals metric friction losses

CALCULATING THE FRICTION LOSS IN METRIC SIZE PIPING

SOME NOTES FOR THE METRIC PIPE FRICTION CHART SHOWN BELOW

  • The chart is calculated for fresh water at 15°C.
  • Use actual bores rather than nominal pipe size.
  • For stainless steel pipe multiply the numbers by 1.1.
  • For steel pipe multiply the numbers by 1.3
  • For cast iron pipe multiply the numbers by 1.7
  • The losses are calculated for a fluid viscosity similar to fresh water

THE FOLLOWING CHART WILL LET YOU CALCULATE THE LOSES THROUGH VARIOUS TYPE VALVES AND FITTINGS.

 

Posted

  • On February 09, 2018