SEAFLO 21 Series Diaphragm Pump 12V



The 21-Series Pumps are compact and designed for a wide range of applications including liquid transfer, spraying, circulation, filtration and dispensing. The 21-series of diaphragm pumps are self-priming and can be run dry without harm. It provides up to 1.2 gallons per minute.


  • Sprayer fixtures (Vehicle-mounted sprayers, electric sprayer)
  • Clean machine, Humidifier, Water purification, Medical apparatus
  • Food beverage filling & liquid transfer
  • Any other pressurization system

21 series applications


  • 2 Chamber  positive  displacement diaphragm pump for smooth and quiet operation
  • Max. Flow: 4.5lpm /1.2gpm
  • Max.Pressure: 100PSI / 6.9bar
  • Pump can be with: pressure switch controlled or by-pass controlled. For the power controlled  you can choose pump without pressure switch and by-pass
  • Run dry with no problem
  • Duty Cycle: Intermittent (under different pressure the continuous working time will also be different)
ModelVolt(V)Flown(lpm/gpm)Pressure offn(psi/bar)Amp Draw(A)Max Draw(A)Packing Sizen(mm)N.W/G.W(Kg)

21 series multi-inlet & outlet connection ways for your choice