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Grey cast-iron submersible sewage pump with 2-inch discharge outlet

Dayton

Dayton 4HU89 2 HP 2" Submersible Sewage Pump 460V

SKU CH-H22B-5TZRT MPN 4HU89

Submersible sewage pump delivers up to 165 gpm at 20 ft head with 2 hp motor and 2 in solids handling

  • TypeDrain Components
  • 2 HP motor delivers strong sewage ejection power
  • 460V three-phase supply suits industrial installations
  • Hermetically sealed oil-filled motor protects against moisture ingress
  • Cast iron body and impeller resist abrasive wear
  • Handles 2-inch solids with 165 gpm at 20 ft head

Application & Purpose

The Dayton 4HU89 is a 2 HP submersible sewage pump built for 460 V three-phase power. Its cast-iron body and impeller handle solids up to 2 in. diameter, making it suitable for municipal lift stations, industrial waste transfer and commercial septic systems.

Installation Notes

The pump requires a 480 V AC three-phase supply drawing 6.00 A and has no integral float switch, so a separate control panel and level sensor must be provided. The hermetically sealed, oil-filled motor eliminates the need for shaft-seal maintenance, but the heavy cast-iron construction demands secure mounting and adequately rated lifting equipment during placement.

Suitability

This unit suits installers who need high-head performance — 165 gpm at 20 ft., 120 gpm at 40 ft. and 66 gpm at 60 ft. — on three-phase infrastructure. It is not for single-phase residential sites, for applications requiring an onboard automatic switch, or for environments where Proposition 65 listed chemicals are prohibited.

Highlights

  • 2 HP motor delivers strong sewage ejection power
  • 460V three-phase supply suits industrial installations
  • Hermetically sealed oil-filled motor protects against moisture ingress
  • Cast iron body and impeller resist abrasive wear
  • Handles 2-inch solids with 165 gpm at 20 ft head

Specifications

TypeDrain Components
BrandDayton
Model4HU89

Questions about this item

How can I verify the pump is performing correctly after installation?

Measure the flow rate against the head pressure; the pump should deliver 165 gpm at 20 ft, 120 gpm at 40 ft and 66 gpm at 60 ft of head.

What comes in the box and what must I supply separately?

The pump includes the cast iron body, hermetically sealed oil-filled motor and carbon ceramic shaft seal; no float switch or electrical controls are included.

Which voltage and phase version matches my 460 V three-phase supply?

This model is rated for 480 V AC three-phase operation at 6.00 A, making it suitable for a 460 V three-phase system.

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