Paper: Permissible Load Diagrams for Pumping Units

The function of a pumping unit is to lift a load comprised of rods and fluid a certain height, then lower the rods and pump back to bottom ready to lift another load of fluid. To many of us it is a rather complicated piece of machinery. When we try to analyze it geometrically and find the meaning of torque factors, work, horsepower, etc., it seems especially difficult and complicated. An attempt will be made to remove some of the confusion surrounding pumping unit calculations by a series of logical steps to show the basis of each calculation.