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SEAFLO 33-Series Diaphragm Water Pump

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Product details

Management number 232656728 Release Date 2026/06/21 List Price US$17.27 Model Number 232656728
Category

The SeaFlo 33-Series is our general-duty on-demand positive displacement pump. It provides reliable performance in high water flow, and 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.

Typical Applications

  • Agricultural Spraying
  • General Industrial
  • Automotive
  • Marine/RV

Features & Benefits

  • Positive displacement pump
  • Can run dry
  • Quiet operation
  • Demand pump
  • Low amp draw
  • Industry standard mount pattern
  • Built in check valve
  • Thermally protected
  • Easy connect fitting

Specifications for 33-Series Diaphragm Water Pumps

Model Voltage Open Flow
GPM/LPM)
Max Draw Shut-off Pressure
PSI/BAR)
SFDP1-030-045-33 12V 3.0 / 11.3 6.74A 45 / 3.1
SFDP2-030-045-33 24V 3.0 / 11.3 3.40A 45 / 3.1
SFDPA1-030-045-33 115V 3.3 / 12.5 1.60A 45 / 3.1
  • Priming Capabilities: 6 feet (1.8 m) suction lift
  • Max Recommended Temperature: 140° F (60° C)Max.
  • Material: EPDM(Valves) / Santoprene(Diaphragm)
  • Ports: 1/2"-14 MNPT

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