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Bronze turbine pump with open dripproof motor housing

Dayton

Dayton 4UP51 Turbine Pump 1/2 HP 115/208-230V

SKU CH-EGWC-RWXDF MPN 4UP51

A bronze turbine pump delivers up to 6.2 gpm at 10 psi with a 1/2 hp capacitor-start motor for 115/208-230V operation

  • TypeDrain Components
  • 1/2 HP motor delivers up to 110 psi shut-off pressure for strong drainage performance
  • Bronze pump housing resists corrosion in demanding plumbing applications
  • Dual-voltage 115/208-230V AC motor suits varied electrical installations
  • Capacitor-start motor provides reliable single-phase starting torque
  • Flow rates of 6.2 gpm at 10 psi and 5.5 gpm at 30 psi meet typical drain needs

Turbine pump for drainage and transfer

The Dayton 4UP51 is a single-phase turbine pump built for moving water in drainage and transfer applications. It uses a 1/2 hp capacitor-start motor that runs on 115/208-230 V AC and fits 3/4 in NPT intake and discharge piping. The bronze housing and open dripproof enclosure suit indoor or sheltered installations.

Who it suits and who it does not

Installers who need a compact pump delivering up to 6.2 gpm at low head will find the rated flow at 10, 20 and 30 psi useful for sizing. It is not for buyers who need higher shut-off pressure than 110 psi or a flow rate above 6.2 gpm at any pressure point. It is also not for systems requiring a sealed or explosion-proof motor enclosure.

Deciding specification: shut-off pressure

The key figure is the 110 psi maximum shut-off pressure combined with the published flow rates of 6.2 gpm at 10 psi, 5.8 gpm at 20 psi and 5.5 gpm at 30 psi. If the system curve stays within this envelope and the 300 psi case pressure rating covers the installation, the pump will match the duty.

Highlights

  • 1/2 HP motor delivers up to 110 psi shut-off pressure for strong drainage performance
  • Bronze pump housing resists corrosion in demanding plumbing applications
  • Dual-voltage 115/208-230V AC motor suits varied electrical installations
  • Capacitor-start motor provides reliable single-phase starting torque
  • Flow rates of 6.2 gpm at 10 psi and 5.5 gpm at 30 psi meet typical drain needs

Specifications

TypeDrain Components
BrandDayton
Model4UP51

Questions about this item

How can I confirm the 4UP51 is delivering the rated 6.2 gpm at 10 psi after installation?

Measure discharge pressure with a gauge at the 3/4 in NPT outlet; at 10 psi the flow should read 6.2 gpm, matching the published curve.

What comes with the 4UP51 and what must I supply for the 3/4 in NPT connections?

The pump ships with bronze housing and capacitor-start motor installed; you must provide 3/4 in intake and discharge piping, fittings and a 115/208-230V single-phase supply.

Which voltage setting should I choose for a 115 V single-phase circuit on the 1/2 hp 4UP51?

Wire the motor for the 115 V tap; the nameplate lists 115/208-230V so the 115 V connection matches a standard single-phase line.

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