Preferred Operating Region (6.1.11)
Pumps shall have a preferred operating region of 70 % to 120 % of best efficiency flowrate of the pump as furnished.
- Rated flow shall be within the region of 80 % to 110 % of best efficiency flowrate of the pump as furnished.
- BEP to be between normal flow and rated flow. This means that rated flow is greater than BEP and normal flow is less than BEP.
- The normal operating point for the pump shall be between 0 and 10% to the left of the best efficiency point. {Total}
- 1.13 The best efficiency point flowrate for the pump as furnished should preferably be between the rated point and the normal point. {API 610}
Comments:
- Pumps shall have a preferred operating region of 70 % to 120 % of best efficiency flowrate of the pump.
- Rated flow shall be within the region of 80 % to 110 % of best efficiency flowrate of the pump.
- The normal operating point for the pump shall be between 0 and 10% to the left of the best efficiency point. {Total}