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290 Series Sewage Pumps

Sewage Pumps // Commercial Use Sewage Pumps // High Head Waste-Mate

290 Series Sewage Pumps

Single and double seal submersible sewage or dewatering pumps

Features and Benefits

  • Durable, cast iron constructed switch case, base, motor and pump housing
  • No sheet metal parts to rust or corrode
  • All cast iron class 30 30000# tensile strength
  • Stainless steel screws, bolts, float rod, handle, guard, arm and seal assembly
  • Oil-filled, hermetically-sealed, automatic reset thermal overload protected (1 Ph only) motor
  • Maximum temperature for sewage or dewatering: 130 °F (54 °C) standard
  • If over 130 °F (54 °C), consult factory.
  • Shaft seal - stainless steel carbon and ceramic rotary
  • 1117 carbon steel motor shaft (single seal models)
  • Corrosion-resistant, powder coated epoxy finish
  • Upper and lower ball bearing running in a bath of oil
  • Neoprene square ring & gasket
  • All models pass 2” (50 mm) spherical solids
  • Major width (single seal): 12-7/8" (32.7 cm)
  • Major height (single seal): 19-5/16" (49 cm)
  • Automatic units available with float-operated, submersible, 2-pole mechanical switch
  • On point: 15-3/4" (40.0 cm)
  • Off point: 5-1/4” (12.7 cm)
  • Specify 2” or 3” NPT female flanged vertical discharge
  • 100% computerized tested

Models 4292, 4293, 4294, 4295 Double Seal Pumps (non-automatic, 60 Hz only):

  • Gives motor extra protection from seal leaks
  • Improved bearing lubrication
  • Helps eliminate seal and bearing damage from dry runs
  • 416 stainless steel motor shaft
  • Major width: 12-7/8" (32.7 cm)
  • Major height: 21-3/16" (31 cm)

The sizing of effluent systems normally requires variable level float(s) controls and properly sized basins to achieve required pumping cycles or dosing timers with non-automatic pumps.

Reserve powered design.

For unusual conditions a reserve safety factor is engineered into the design of every Zoeller® pump.

* See charts for UL & CSA listings

Product Specifications

Motor 1/2 - 2 HP
Voltage 115 - 575 V
Phase 1 or 3 Ph
Hertz 60 Hz
RPM 3450 RPM
Type Permanent split capacitor or 3 phase
Insulation Class B
Amps 2.4 - 20.5 Amps
Operation Automatic or nonautomatic
Auto On / Off Points 15-3/4" / 5" (40.0 cm / 12.7 cm)
Discharge Size 2" or 3" NPT
Solids Handling 2" (50 mm) spherical solids
Cord Length 20' (6 m) standard
Cord Type UL listed, 3-wire neoprene cord and plug
Max Head 75' (22.9 m)
Max Flow Rate 214 GPM (810 LPM)
Max Operating Temperature 130 °F (54 °C)
Cooling Oil filled
Motor Protection Auto reset thermal overload (1 Ph)
Cap Cast iron
Motor Housing Cast iron
Pump Housing Cast iron
Base Cast iron
Upper Bearing Ball bearing
Lower Bearing Ball bearing
Mechanical Seals Carbon and ceramic
Impeller Type Non-clogging vortex
Impeller Cast iron, optional bronze
Hardware Stainless steel
Motor Shaft 1117 carbon steel or 416 stainless steel*
Gasket Neoprene square ring and gasket
  • cCSAus
  • Powder Coated Tough
  • UL
  • Vortex

Technical Data


All installation of controls, protection devices and wiring should be done by a qualified licensed electrician. All electrical and safety codes should be followed including the most recent National Electric Code (NEC) and the Occupational Safety and Health Act (OSHA).

Selection Guide

  1. Integral float operated mechanical switch, no external control required.
  2. For automatic use single piggyback variable level float switch or double piggyback variable level float switch. Refer to FM0477.
  3. See FM1228 for correct model of simplex control panel.
  4. See FM0712 for correct model of duplex control panel.


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