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Can Your Pump Cope With Process Changes?

Understand the possible impact of changed dynamic head

mn can your pump cope with process changes

Pressure demands in pumped liquid systems come from dynamic and static sources. Friction in the system causes the dynamic losses. For Newtonian fluids, these losses are proportional to the square of the velocity in the system. If flow rate doubles, dynamic pressure drop increases by a factor of four. Static head changes stem from elevation differences or pressure differential between the source and the destination reservoir — and vary with system levels or pressures, not with flowrate. We can simplify the overall terminology to a dynamic pressure change (varying with flow) and a head pressure change (varying with pressure or elevation).The specific application…

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