PIPE & PUMPING HYDRAULICS1 min reference noteCentrifugal Pump System Curves, Affinity Laws & Parallel OperationSource notes β linked publications and standards below; organisations and authors named there do not author or endorse this page.1. Pump Affinity LawsQ2/Q1 = N2/N1 | H2/H1 = (N2/N1)Β² | P2/P1 = (N2/N1)Β³PEER-REVIEWED TEXTBOOK & JOURNAL CITATIONSSulzer Pumps. (2010). Centrifugal Pump Handbook (3rd ed.). Elsevier. [Access Reference]