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Dayton 1 hp centrifugal pump, cast iron housing, open dripproof motor

Dayton

Dayton 4YKP8 1 hp 115/230V Centrifugal Pump 48 ft Head

SKU CH-HY1B-Q18HB MPN 4YKP8

Centrifugal pump delivering up to 72 gpm at 115/230V with a 48 ft maximum head

  • TypeDrain Components
  • Delivers up to 72 gpm maximum flow rate for rapid liquid transfer
  • Handles 48 ft maximum head to overcome significant elevation changes
  • Dual-voltage 115/230V AC motor provides flexible installation options
  • Cast iron housing ensures durability in demanding drainage applications
  • Open dripproof motor enclosure protects internal components while allowing ventilation

Dayton 1 hp Centrifugal Pump

The Dayton 4YKP8 is a single-phase centrifugal pump rated at 1 hp for 115/230V AC operation. It features a cast-iron housing with NPT intake and discharge ports sized at 1 1/2 inches. The open dripproof motor enclosure suits indoor or sheltered installations where water removal is required.

Suits and limits

This pump suits installers needing a 1 hp unit that delivers up to 72 gpm at low head and 22 gpm at 40 ft of head. Buyers who need a different voltage, a higher maximum head than 48 ft, or a sealed motor enclosure should look at other models.

Deciding specification

The maximum head of 48 ft is the single figure that decides whether this pump matches the system resistance. If the total dynamic head exceeds 48 ft the pump cannot deliver flow; if it is below, the pump will operate within its published performance range.

Highlights

  • Delivers up to 72 gpm maximum flow rate for rapid liquid transfer
  • Handles 48 ft maximum head to overcome significant elevation changes
  • Dual-voltage 115/230V AC motor provides flexible installation options
  • Cast iron housing ensures durability in demanding drainage applications
  • Open dripproof motor enclosure protects internal components while allowing ventilation

Specifications

TypeDrain Components
BrandDayton
Model4YKP8

Questions about this item

What comes with the pump and what must I source separately?

The pump has 1-1/2 in NPT intake and discharge connections; compatible pipe and fittings are not included.

Should I wire it for 115 V or 230 V?

The motor is dual-voltage 115/230 V AC single-phase; choose the voltage that matches your supply and follow the wiring diagram on the nameplate.

What flow can I expect at 40 ft of head?

At 40 ft of head the maximum flow is 22 gpm; flow drops to 61 gpm at 15 ft, 65 gpm at 10 ft and 69 gpm at 5 ft of head.

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