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Dayton 4P915 bronze-fitted turbine pump cast iron housing open dripproof motor

Dayton

Dayton 4P915 3/4 hp Turbine Pump 115/230V 160 psi 700 ft 40 gpm

SKU CH-1QM9-TFHGW MPN 4P915

Single-phase turbine pump delivers up to 40 gpm at 160 psi shut-off pressure with 700 ft maximum head

  • TypeDrain Components
  • Delivers up to 40 gpm for high-volume transfer
  • Reaches 700 ft of head for tall-system supply
  • Provides 160 psi shut-off pressure for strong push
  • Runs on 115/230V single-phase power for flexible wiring
  • Cast-iron housing resists wear in continuous-duty operation

Application fit

The Dayton 4P915 is a single-phase turbine pump built for moving water through drainage or transfer systems. It suits installers who need a bronze-fitted unit with a cast-iron housing and an open dripproof motor enclosure. Buyers who want more storage or a different pump architecture should look elsewhere.

Deciding specification

The shut-off pressure reaches 160 psi while the maximum head is 700 ft, and the peak flow rate is 40 gpm. At 10 psi the pump delivers 7.5 gpm, at 20 psi it delivers 7.3 gpm, and at 30 psi it delivers 7.2 gpm. Best efficiency occurs at 100 ft of head, making this figure the primary guide for system matching.

Installation context

The unit runs on 115/230V AC with a capacitor-start motor and fits 1 1/4 in intake and 1 in NPT discharge piping. The open dripproof enclosure requires a dry, ventilated location. The bronze-fitted construction and cast-iron housing handle typical water-transfer duties without additional corrosion protection.

Highlights

  • Delivers up to 40 gpm for high-volume transfer
  • Reaches 700 ft of head for tall-system supply
  • Provides 160 psi shut-off pressure for strong push
  • Runs on 115/230V single-phase power for flexible wiring
  • Cast-iron housing resists wear in continuous-duty operation

Specifications

TypeDrain Components
BrandDayton
Model4P915

Questions about this item

What does the 40 gpm maximum flow rate mean once the pump is installed?

It is the peak volume the pump can move at zero pressure; actual flow drops to 7.5 gpm at 10 psi, 7.3 gpm at 20 psi and 7.2 gpm at 30 psi.

What voltage standard does the 115/230 V motor use and what does it cap in practice?

The single-phase capacitor-start motor runs on standard 115 V or 230 V AC supply; the nameplate voltage limits the pump to those two mains options.

What pipe sizes and thread type are needed to mount the intake and discharge?

The intake requires 1 1/4 in pipe and the discharge requires 1 in pipe, both using NPT threads.

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