Balcrank CenterFlo CF30 28 GPM DEF Polypropylene Diaphragm Pump

28 GPM
1/2 in.
14.30 LBS
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New patented technology CenterFlo pumps feature reversed air/fluid design compared to conventional diaphragm pumps. Fluid path flows through the center of the pump with the air motor to the outside allowing improved suction and performance, less air consumption with less pulsation throughout the performance curve.


  • Discharge fluids up-to 28 gal/m at 100 PSI, to pump light to medium viscosity fluids including DEF
  • No rotating shafts or seals as found on electric pumps
  • Simple air operated design, no electricity needed
  • Pump can run dry without damage to the seals or wetted parts
  • On-demand operation, no switches or extra components required; pump starts and stops automatically on-demand
  • Ultimate adjustability using simple air regulator adjustment to control flow and pressure requirements
  • No electrical safety concerns


  • Air inlet: 3/8" NPSM (F)
  • Fluid inlet: 1" BSPP (F) DEF
  • Fluid outlet: 1" BSPP (F) DEF
  • Max. free flow: 28 G/M (100 L/M)
  • Air pressure range: 45 ? 100 PSI (3 ? 7 bar)
  • Max. solid suspension: 3/16" (4 mm)
  • Wetted Materials: PTFE (Teflon®), Viton, Polypropylene, Stainless Steel, and Hytrel®
  • Recommended applications: DEF fluid dispensing, transfer, evacuation, and distribution systems