Custom Masters/Flo King
Phone: 407-331-4634
Fax: 407-331-0575

FAQ

I WANT TO MAKE A SPARGER SYSTEM FOR MY PUMP. HOW MANY FLODUCTOR OR EDUCTOR NOZZLES OR HOLES SHOULD I USE, AND WHAT SIZE PIPE?

sparger drawing

• We do not build Sparger Systems at the Flo King factory. This is strictly a do-it-yourself project.

• See this link for guidelines on Floductor (or Eductor) Sparger pipes for Flo King products: http://floking.com/catalog%20folder/Bulletin%2023.pdf

• Flo King pumps operate at very high flow rate but also at low pressure. Therefore, they are not used to pump solution through heat exchangers, narrow tubes or orifices, or extremely long pieces of pipe.

• Most customers find they do not need any type of Eductor, Floductor or pipe Sparger System on the Flo King pump. By far, the most popular and simplest configuration for installing Flo King systems is shown in the illustration below. Just mount the pump in the corner of the tank, point the 45-Degree Elbow on the Discharge Port at a slight downward angle toward the long tank wall, and turn on the pump. It is almost always better to position the 45-Degree Elbow and Outlet Extension at a slight angle toward the tank wall rather than toward the center of tank.

drawing counterflow

• Eductor or Floductor Nozzles can be installed on Flo King pumps as part of a pipe Sparger System. However, we do not find that these nozzles increase the flow rate and agitation of Flo King pumps; rather, they allow you to redistribute the flow to desired areas of the tank.

• Flo King CPVC and polypro Floductors are simple, inexpensive nozzles. Venturi-style Eductor nozzles are available from other manufacturers. Follow the guidelines at this link when using either Floductors or Eductors: http://floking.com/catalog%20folder/Bulletin%2023.pdf

• As described at the link above, 1-inch-diameter pipe is required for spargers on the BX1200. You will also need a 1"-to-3/4" Reducer Fitting to connect threaded 1"-diameter sparger pipe to the threaded 3/4" BX1200 Discharge Port. Explanation: Long lengths of 3/4"-diameter pipe will cause backpressure on the BX1200 pump, loss of flow rate, and possibly cavitation.

 • For the BX3000, BX5000, BXL2500 and BXL5000, use 1.5"-Diameter Pipe and a 1.5"-to-1" Reducer Fitting to thread the pipe onto the pump 1" Discharge Port. Explanation: Long lengths of 1"-diameter pipe on these models will cause backpressure on the pump, loss of flow rate, and possibly cavitation.

HOW TO MAKE SPARGER PIPE WITH DRILLED HOLES INSTEAD OF FLODUCTORS OR EDUCTORS

If you do not want to use Floductors or Eductors, here are some guidelines for making a pipe sparger system with drilled holes and no nozzles.

FOR BX1200 OR BX650
Use 1"-Diameter Pipe and a 1"-to-3/4" Reducer Fitting to Thread the Pipe onto the pump Discharge Port
   • Drill nine evenly spaced 1/4"-diameter holes or
   • 16 evenly spaced 3/16"-diameter holes or
   • 36 evenly spaced 1/8"-diameter holes

FOR BX3000, BX5000, BXL2500 & BXL5000
Use 1-1/2"-Diameter Pipe and a 1-1/2-to-1" Reducer Fitting to Thread the Pipe onto the pump Discharge Port
   • Drill 16 evenly spaced 1/4"-diameter holes or
   • 28 evenly spaced 3/16"-diameter holes or
   • 63 evenly spaced 1/8"-diameter holes

FOR LAB SERIES
Floductor and Eductor nozzles cannot be used with the Lab Series.

To make your own Lab Series sparger with drilled holes, use 1/2"-diameter pipe and fittings. The standard Dispersion Tube (DTL) included with the Lab Series Filter System has 15 holes, each of which is 1/8 inch in diameter. Your do-it-yourself sparger pipe should approximate the total surface area of the DTL holes for maximum flow. See this link for DTL photo.