Zoeller's NEW Aquanot® Fit 508 Battery Backup System offers an economical option for dependable protection against basement flooding.


270 Series Sewage Pumps

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

270 Series Sewage Pumps

Submersible water pump for moving sewage or effluent

Features and Benefits

  • Durable, ASTM Class 25 cast iron motor housing cover and pump housing
  • Engineered plastic base on model 270
  • Not affected by materials normally found in drainage and sewage sumps
  • Stainless steel screws, bolts and handle
  • Oil-filled, hermetically-sealed, automatic reset thermal overload protected motor
  • Neoprene square ring & gasket
  • Carbon and ceramic shaft seal
  • 4270 series double seal pump available
  • Cast iron base on 4270
  • Upper sleeve bearing and lower ball bearing running in a bath of oil
  • Passes 2” (50 mm) spherical solids
  • 2” NPT discharge
  • Corrosion-resistant, powder coated epoxy finish
  • Models available packaged with a piggyback variable level float switch
  • Simplex and duplex systems available
  • Packaged systems available

Consult factory for special applications:

  • Electrical alternators for duplex systems available with variable level control switches
  • Minimum recommended basin size (small load applications): simplex – 24” x 30” (60.9 x 76.2 cm), duplex – 36” x 36” (91.4 x 91.4 cm)
  • Standard model 270 – 49 lbs (22 kg)
  • Standard model 4270 – 73 lbs (33 kg)
  • High water alarms available
  • Mechanical alternators available for duplex systems

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.

*May be used in those states where codes do not restrict solids size in effluent systems.

Product Specifications

Motor 1 HP
Voltage 115 or 230 V
Phase 1 Ph
Hertz 60 Hz
RPM 3450 RPM
Type Permanent split capacitor
Insulation Class B
Amps 7.5 - 15.0 Amps
Operation Automatic or nonautomatic
Discharge Size 2" 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 29' (8.8 m)
Max Flow Rate 132 GPM (500 LPM)
Max Operating Temperature 130 °F (54 °C)
Cooling Oil filled
Motor Protection Auto reset thermal overload
Cap Cast iron
Motor Housing Cast iron
Pump Housing Cast iron
Base Engineered plastic or cast iron
Upper Bearing Sleeve bearing
Lower Bearing Ball bearing
Mechanical Seals Carbon and ceramic
Impeller Type Non-clogging vortex
Impeller Engineered plastic
Hardware Stainless steel
Motor Shaft JIS S45C steel
Gasket Neoprene
  • cCSAus
  • Powder Coated Tough

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).

Maximum temperature of sewage or dewatering must be limited to 130°F (54°C). For over 130°F (54°C) special quotation required.

Selection Guide

  1. For automatic use single piggyback variable level float switch or double piggyback variable level float switch. Refer to FM0477.
  2. See FM1228 for correct model of simplex control panel.
  3. See FM0712 for correct model of duplex control panel.


Model Comparison Charts

  • Product Model Comparison Chart: 60hz
    model seal mode volts phase amps hp hz lbs kg
    BN270 Single Auto 115 1 15.0 1 60 49 22
    N270 Single Non 115 1 15.0 1 60 49 22
    N4270 Double Non 115 1 15.0 1 60 49 22
    E270 Single Non 230 1 7.5 1 60 73 33
    BE270 Single Auto 230 1 7.5 1 60 73 33
    E470 Double Non 230 1 7.5 1 60 73 33

Pump Performance Curves

Design Tools

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