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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

  • Product 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.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $1,703.99
Pricier than about 92% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameDayton
Model name4HU89
Product typeDrain Components

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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