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Bronze turbine pump with open dripproof motor housing

Dayton

Dayton 4UP50 Turbine Pump 1/3 HP 115/208-230V 125 psi 3.3 gpm

SKU CH-YG6Y-BX82P MPN 4UP50

Single-phase turbine pump delivers 3.3 gpm at 125 psi shut-off with bronze housing and capacitor-start motor

  • TypeDrain Components
  • 1/3 HP motor delivers reliable pressure up to 125 psi
  • Bronze housing resists corrosion for long service life
  • Dual-voltage 115/208-230V design suits multiple power sources
  • Capacitor-start motor provides strong starting torque under load
  • Maximum flow 3.3 gpm meets demand for drainage applications

Turbine pump specifications

The Dayton 4UP50 is a single-phase turbine pump with a bronze housing and open dripproof motor enclosure. It delivers 1/3 hp from a capacitor-start motor rated for 115/208-230V AC. Maximum shut-off pressure reaches 125 psi with a peak flow of 3.3 gpm. Case pressure is rated to 300 psi.

Installers needing 3/4 in NPT connections

Suits installations that require 3/4 in NPT intake and discharge ports and flow rates near 3.35 gpm at 10 psi, 3.15 gpm at 20 psi or 2.95 gpm at 30 psi. Not for systems that demand higher horsepower, different voltage phases or larger pipe diameters. Buyers needing alternative materials or pressure ratings should consider other options.

Best efficiency head of 74 ft

The pump achieves its best efficiency at a head of 74 ft, making this the key figure for matching the unit to your system curve. Verify that your application operates near this head for optimal performance.

Highlights

  • 1/3 HP motor delivers reliable pressure up to 125 psi
  • Bronze housing resists corrosion for long service life
  • Dual-voltage 115/208-230V design suits multiple power sources
  • Capacitor-start motor provides strong starting torque under load
  • Maximum flow 3.3 gpm meets demand for drainage applications

Specifications

TypeDrain Components
BrandDayton
Model4UP50

Questions about this item

Do I need a 3/4 in NPT intake and discharge line ready to connect this turbine pump?

Yes — the pump has 3/4 in NPT compatible intake and discharge ports, so matching pipe or hose fittings must be on hand before installation.

Will the 1/3 hp motor on 115 V share a circuit with older 115 V shop tools without tripping the breaker?

The motor runs on 115 V single-phase power; total circuit load including any other tools must stay within the branch-circuit rating to avoid nuisance trips.

How can I confirm the pump is delivering its rated 3.3 gpm after I plumb it in?

Measure flow at the discharge — at 10 psi you should see about 3.35 gpm, dropping to 3.15 gpm at 20 psi and 2.95 gpm at 30 psi.

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