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INTRODUCTION TO PUMPSIN A COLLECTION SYSTEM
Brian GongolDJ Gongol & Associates, Inc.
April 20, 2015
DMACC Collection Systems ClassAnkeny, Iowa
Pump: A machine for adding energy to fluid
...causing it to defy gravity
Energy in • Pressure and flow out
Trade-off: Your thumb over a garden hose
Main pump types
Positive displacement Pushers
Centrifugal Spinners
Positive displacement physically pushes the water
High, consistent pressures & specific volumes
Centrifugal pumps create pressure differential
Low pressure at eye, high pressure at discharge
Most collection system pumps are centrifugal
Impeller versus propeller
Containing the action of an impeller
Wearplate, impeller, shaft, sealplate, & seal
Three primary styles of centrifugal pump
Flooded suction
Submersible
Self-priming
Safety matters: Deadly gases
Safety matters: Falls
Safety matters: Electrocution
Always use the safest available pump
Where a flooded suction makes sense
Where submersibles make sense
Where self-priming pumps make sense
Questions?
Thank you for coming! Brian Gongol DJ Gongol & Associates 515-223-4144 [email protected] Twitter: @djgongol Call or email anytime
References and credits
Catalog images of pumps courtesy AMT Pump Co. Hurricane imagery from NOAA (public domain)
http://www.nnvl.noaa.gov/cgi-bin/index.cgi?page=items&ser=112503&large=1
Propeller image from the US Navy (public domain) http://www.history.navy.mil/photos/sh-usn/usnsh-
g/ap126-d.htm Lift station sample diagram and pump cutaway photo
courtesy The Gorman-Rupp Co. All other photos are original work of and copyright reserved
by Brian Gongol
