Seaflo seaflo-diaphragm-pump-33-series-12-24v-11.6lpm-SFDP1-030-0

Seaflo Diaphragm Pump - 33 Series 12/24V - 11.6LPM

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The 33-Series is Seaflo's general-duty on-demand positive displacement pump. It provides reliable performance in high water flow, moderate pressure applications. This 3-chamber diaphragm pump provides up to 3.0 gallons per minute and is capable of self-priming up to 6 vertical feet, and can run dry without damage. Serves 3 or more 1/2” (13 mm) outlets.

This automatic demand water system pump has a built-in pressure switch, which automatically starts and stops when the faucet is opened and closed. They're easy to install, service and winterize.

This pump's capacity is up to 11.6 litres per minute (3.0 GPM).

Typical Applications:

  • Marine & RV Water Supply
  • Agricultural Spraying
  • Industrial
  • OEM/ODM Applications

Features & Benefits:

  • Three Year Warranty
  • Capable of supplying 2-3 fixtures
  • Self priming
  • Run dry safe
  • On-Demand use
  • Industry Standard mounting pattern
  • Complete rubber mounting base
  • Adjustable pressure switch
  • Quiet operation


  • Housing Material: Nylon / Polypropylene
  • Valves & Seals Material: EPDM / Vition
  • Diaphragm Material: Santoprene


  • Duty Cycle: Intermittent
  • Leads: 16 AWG, 4.5" in length with 2-pin connector leads
  • Voltage: 12V/24V

For more details see the Seaflo web site.

Part NumberVoltageFlow RateControl TypeAmpsMax PressurePortsPriming CapabilitiesWeight
SFL-SFDP1-030-045-33 12V 11.6LPM / 3.0GPM Switch 8.0A Max 45 PSI / 3.1 BAR 1/2"-14 MNPT 1.8m Suction Lift 1.8kg
SFL-SFDP2-030-045-33 24V 11.6LPM / 3.0GPM Switch 4.0A Max 45 PSI / 3.1 BAR 1/2"-14 MNPT 1.8m Suction Lift 1.8kg

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