| alternate operating volume flow rate | A volume flow rate that is the alternate conditions volume flow rate at which a functional or physical object is expected to operate | Number |
| end of allowable operating flow region | The end of the range of allowable flow in operating conditions | Number |
| end of operating flow region | The end of the range of flow in operating conditions | Number |
| flow rate capability for THAID with less than 1 in² flow-by area | The flow rate capability for THAID with less than 1 in² flow-by area considering maximum required gas lift, well kill and circulation | Number |
| lower limit operating volume flow rate | A volume flow rate that is the lowest volume flow rate at which a functional or physical object is expected to operate | Number |
| lower limit stable flow | Minimum flow that can be sustained stably | Number |
| lower limit thermal mass flow | Minimum mass flow measured by a thermal mass flow element | Number |
| maximum cooling water flow rate | The maximum cooling inlet water pressure as per project specification and site conditions | Number |
| normal operating volume flow rate | The volume flow rate at which a functional or physical object is expected to operate normally | Number |
| normal operating volume flow rate (at normal operating pressure and normal operating temperature) | The volume flow rate at which a functional or physical object is expected to operate normally The volume flow rate is calculated at normal operating pressure and normal operating temperature | Number |
| normal volume flow rate | A volume flow rate a functional or physical object is designed to deliver under normal conditions | Number |
| proposal curve best efficiency point flow (at rated impeller diameter) | Flow at Best Efficiency Point (BEP) of the proposed curve at rated impeller diameter | Number |
| rated volume flow rate | A volume flow rate a functional or physical object is designed to deliver at specified conditions | Number |
| start of allowable operating flow region | The beginning of the range of allowable flow in operating conditions | Number |
| start of operating flow region | The beginning of the range of flow in operating conditions | Number |
| upper limit cooling water flow rate | The maximum cooling water flow rate during operation | Number |
| upper limit design product inflow rate | The highest product inflow rate at which a functional or physical object is designed for | Number |
| upper limit design product outflow rate | The highest product outflow rate at which a functional or physical object is designed for | Number |
| upper limit design volume flow rate | A volume flow rate that is the highest volume flow rate at which a functional or physical object is designed to operate | Number |
| upper limit operating volume flow rate | A volume flow rate that is the highest volume flow rate at which a functional or physical object is expected to operate | Number |