ANSI/HI 9.6.6-2016 Rotodynamic Pumps for Pump Piping

This version of the standard has been superseded. PDF copies remain available for purchase.


This standard details pump piping requirements for rotodynamic pumps and effects of inlet/outlet piping on pump performance. This standard is applicable to all piping downstream and upstream from the pump but not when entering tank, vessel or intake structure. This standard is intended to complement ANSI/HI 9.8 Rotodynamic Pumps for Pump Intake Design.

This standard applies to all markets worldwide, and is specially important for petrochemical, chemical process and water, waste water and energy utilities industries. Pump manufacturers, engineering procurement contractors, industry consultants and pump end users should utilize this standard to ensure proper piping design and reliable pump operation.  

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ANSI/HI 9.6.6-2016 Rotodynamic Pumps for Pump Piping


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