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Dayton 4UP52 turbine pump, cast iron housing, open dripproof motor, 1/2 HP

Dayton

Dayton 4UP52 Turbine Pump 1/2 HP 115/208-230V

SKU CH-7RP2-GRJAD MPN 4UP52

Half-horsepower turbine pump delivers up to 6.8 gpm at 130 psi shut-off pressure for 1-inch NPT piping

  • TypeDrain Components
  • 1/2 hp motor delivers up to 6.8 gpm flow
  • Cast iron housing withstands 300 psi case pressure
  • Single-phase capacitor-start motor runs on 115/208-230V AC
  • 130 psi maximum shut-off pressure handles demanding drain applications
  • Best efficiency at 95 ft head with 1 in NPT connections

Pump type and intended use

The Dayton 4UP52 is a single-phase turbine pump rated at one-half horsepower for 115, 208 or 230 volt AC supply. It suits residential or light-commercial drainage and transfer tasks where a cast-iron housing and open dripproof motor are acceptable. Buyers who need a self-priming design or a sealed motor for submerged installation should look elsewhere.

Build quality and connections

The pump housing is cast iron and the motor uses a capacitor-start design with an open dripproof enclosure. Intake and discharge ports are one-inch NPT, matching standard iron or PVC piping. Maximum case pressure is rated at 300 psi and shut-off pressure reaches 130 psi. Installers must provide weather protection for the motor and ensure the mounting surface can support the unit.

Performance compared to smaller units

Flow rates hold at 6.8 gallons per minute at 10 psi, then fall to 6.6 gpm at 20 psi and 6.3 gpm at 30 psi, with best efficiency at 95 feet of head. The step up from fractional-horsepower models is justified when the system demands consistent delivery above 6 gpm at moderate pressure. Systems requiring substantially higher head or flow will need a larger pump.

Highlights

  • 1/2 hp motor delivers up to 6.8 gpm flow
  • Cast iron housing withstands 300 psi case pressure
  • Single-phase capacitor-start motor runs on 115/208-230V AC
  • 130 psi maximum shut-off pressure handles demanding drain applications
  • Best efficiency at 95 ft head with 1 in NPT connections

Specifications

TypeDrain Components
BrandDayton
Model4UP52

Questions about this item

What voltage does the 115/208-230V AC single-phase motor require?

The motor runs on single-phase 115 V AC or 208-230 V AC; check the nameplate and wire for the voltage you are using.

What pipe sizes and thread type do the 1-inch intake and discharge ports use?

Both ports accept 1-inch NPT pipe threads; use matching NPT fittings for the suction and discharge lines.

How is the capacitor-start motor wired, and what mistake should be avoided?

Wire the motor for the chosen voltage (115 V or 208-230 V) per the diagram on the motor; the common error is leaving the voltage selector in the wrong position.

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