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Specific Speed and Modeling Laws
S Impeller Design
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abrasive affinity laws angle applications axial thrust baseplate bearing best efficiency point blade boiler feed pump brake horsepower calculated CAPACITY GPM cavitation centrifugal pumps clearance configuration contact angle crossover diffuser discharge double-volute driver factor flow rates fluid ft/sec gear geometry Goulds Pumps guide vane assembly head head loss high-speed horsepower HPRT HPRT's hydraulic turbine impeller diameter impeller eye inch increase inlet installed layout liquid low specific speed lubrication machine manufacturers maximum multi-stage pumps normally NPSH NPSHA NPSHR P.E. pumps pipeline piping predict pump design pump efficiency pump performance pump shaft pumps operating range ratio reduced result rotating rotor runner seal shown in Figure single-volute slurry pump specific gravity speed pumps stage stress stuffing box suction nozzle suction pressure suction specific speed support pedestal temperature thermal throat area thrust loads tion typical velocity vertical turbine pump viscosity volute wear ring