Delavan PowerFlo 12V Diaphragm Demand Pump - 5950-201E

A reliable Delavan 12V PowerFlo 5900 Series Diaphragm Pump for fluid transfer and agricultural spraying applications.
Delavan 12V PowerFlo Demand Pump with 3/4" Quick Attach ports.

Delavan 12V PowerFlo Demand Pump with 3/4" Quick Attach ports.

  • Delavan Pump 5950-201E Quick Attach
    CAD $147.35
    • Buy 2 for CAD $138.66 each and save 6%
    • Buy 6 for CAD $132.76 each and save 10%


The Delavan 12V PowerFlo Diaphragm Demand Pump # 5950-201E is a widely used and reliable pump designed for agricultural spraying, lawn spraying, and fluid transfer applications on spot sprayers or agricultural sprayers.

It is capable of delivering up to 5 gpm (19 lpm), providing you with maximum performance in a range of applications. Viton valves provide maximum chemical resistance, enabling use with a range of general agricultural chemicals, including herbicides, pesticides, liquid fertilizers, insecticides, and more.

The included 3/4" (19 mm) quick attach ports are convenient because they allow you to quickly and easily fit the pump to most spray systems that use a 3/4" (19 mm) quick attach.

The 60 psi (4.1 bar) pressure sensing demand switch is useful in applications with a set flow and pressure requirement (eg. spray wands on spot sprayers). The demand switch eliminates the need for a pressure regulator. It reacts to outlet pressure and interrupts power at a preset shutoff pressure. Once the outlet pressure drops below a predetermined level, the demand switch closes and the pump only operates until the shutoff pressure is once again achieved.

Note: The motor surface temperature should not surpass 180° F (82° C).

We recommend using the AA122-1/2-PP Poly Line Strainer (see Related Products) to help eliminate contaminates from running through your demand pump.


  • Max. Flow: 5 gpm (19 lpm)
  • Max. Pressure: 60 psi (4.1 bar)
  • Max. Draw: 16.3 Amps
  • Max. Fluid Temperature: 140° F (60° C)
  • Voltage: 12 VDC motor is a permanent magnet, totally enclosed, non-ventilated type
  • Port Sizes: 3/4" (19 mm) Quick Attach ports
  • 60 psi (4.1 bar) demand switch
  • 5 chamber positive displacement pump
  • Polypropylene housing
  • Viton valves
  • Santoprene diaphragm
  • Stainless steel fasteners
  • Self-priming
  • Can be run dry
  • CE approved
  • Weight: 8 lbs. (3.62 kg)

Check under Related Information for the manual, parts list, flow chart, etc.

Related Information

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