This standard specifies the efficiency of single-stage centrifugal water pumps, multi-stage centrifugal water pumps, and petrochemical centrifugal pumps. This standard applies to: a) single-stage centrifugal water pump: flow rate Q≥5m³/h, specific speed ns=20~300 (or type number K=0.103~1.55); b) multistage centrifugal water pump: flow rate Q≥5m³/h~3000m³/h, specific speed ns=20~300 (or type number K=0.103~1.55); c) petrochemical centrifugal pump: flow rate Q≥5m³/h~3000m³/h , Specific speed ns=20~300 (or type number K=0.103~1.55).
GB/T 13007-2011 Referenced Document
GB/T 3216 Grade 1, Grade 2 and Grade 3 Hydraulic Performance Acceptance Tests for Rotary Power Pumps*, 2019-04-01 Update
GB/T 7021 Glossary of terms for centrifugal pump*, 2019-10-18 Update