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Shallow well jet pump with pressure tank, stainless steel finish

Dayton

Dayton 4HFA2 Shallow Well Jet Pump 1/2 HP 115/230V

SKU CH-X4Q5-VZAXA MPN 4HFA2

Shallow well jet pump delivers up to 7.2 gpm at 30 psi with a 25 ft maximum suction lift and includes a 6 gallon pre-charged tank

  • TypeDrain Components
  • Shallow-well supply up to 7.2 gpm at 30 psi
  • Dual-voltage motor runs on 115 or 230 V AC
  • 25 ft maximum suction lift for deep sources
  • 6 gal tank with 28 psi bladder pressure
  • 60 psi shut-off pressure protects plumbing

Shallow Well Jet Pump System

The Dayton 4HFA2 is a shallow well jet pump system rated at 1/2 hp with dual voltage 115/230V AC operation. It draws 9.6 amps at 115V or 4.8 amps at 230V and includes a 6 gallon tank with a 28 psi bladder pressure. The unit suits residential water supply from shallow wells.

Sustained Flow Performance

Flow rates are specified at a 10 foot lift across three pressure points. At 30 psi the pump delivers 7.2 gpm, at 40 psi it provides 3.5 gpm, and at 50 psi output falls to 1.7 gpm. The shut off pressure is 60 psi and maximum suction lift reaches 25 ft.

Interface Pressure Limits

The pump connects via a 1-1/4 inch NPT inlet and a 1 inch NPT discharge. Maximum inlet pressure is rated at 75 psi, while the tank bladder is pre-charged to 28 psi. These pressure boundaries define the safe operating envelope for the plumbing connections.

Highlights

  • Shallow-well supply up to 7.2 gpm at 30 psi
  • Dual-voltage motor runs on 115 or 230 V AC
  • 25 ft maximum suction lift for deep sources
  • 6 gal tank with 28 psi bladder pressure
  • 60 psi shut-off pressure protects plumbing

Specifications

TypeDrain Components
BrandDayton
Model4HFA2

Questions about this item

How much power does the 1/2 HP motor draw when running continuously on 115 V?

The motor draws 9.6 amps at 115 V AC and 4.8 amps at 230 V AC, so daily running cost depends on your local electricity rate and how long the pump cycles.

What plumbing connections must already be in place for the 1-1/4 in NPT inlet and 1 in NPT discharge?

You need matching 1-1/4 in NPT suction piping with a foot valve and 1 in NPT discharge piping, plus a 115/230 V electrical supply and a pressure switch set below the 60 psi shut-off pressure.

Will the 60 psi shut-off pressure work with my existing 28 psi pre-charged bladder tank?

Yes, the factory-set 28 psi bladder pressure is designed for the 60 psi shut-off, giving a normal 30–50 psi operating range that matches the published flow rates at 30, 40 and 50 psi.

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