No matter what depth you need to pump from, we have a submersible motor and a matching pressure controller that will allow you get the job done. Franklin controls provide long-lasting, reliable operation for the best pressure pump system performance. The amount of drawdown measured in a well resulting from the commencement of pumping from. NOTES: Refer to Franklin Electric’s SubDrive/MonoDrive Installation Manual. A phenomenological attempt to motivate its use. The derivative of drawdown was apparently first used by Chow ( 2011) and later extensively by Bourdet ( 2002 ), mostly in a form named rather improperly as the logarithmic derivative. The single-phase control boxes and three-phase control panels are available in corresponding ratings. Drawdown is measured relative to the static water level. The communication explains the physical meaning of the derivative of drawdown for a pumping test. Our submersible control boxes are designed specifically for Franklin motors. Material and construction available include Standard Water Well, full 304SS, 316SS and 904L SS motors. (2015) applied time series analysis to determine the drawdown due to pumping from a single well field. For deeper wells and applications requiring higher flow ratings, Franklin's 6-inch, 8-inch, 10-inch and 12-inch submersibles are available from 5.5 through 400 kW. An important application of time series analysis is the estimation of the drawdown caused by pumping. Our 4-inch submersibles (0.25 through 11 kW) feature the industry's widest range of voltage and frequency ratings in both single- and three-phase models. Drawdown Protector: Drawdown protector is used to manage your desired Max Daily Drawdown. Our motors are tough, built to last, and come in a variety of options. Franklin's full line of submersible motors can be used for groundwater and other submerged pressure pumping applications.
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