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Model 73

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Sump and Effluent Pumps // Residential Use // Builder

Model 73

BUILDER SERIES submersible pump for dewatering.

Features and Benefits

  • Oil-filled, hermetically-sealed motor with automatic reset thermal overload protection
  • Rugged, cast iron motor housing with corrosion-resistant, baked-on enamel finish
  • Efficient heat sink for heat dissipation
  • Engineered plastic base and pump housing with no screen
  • Passes 3/8” (9 mm) spherical solids
  • Reliable integrated vertical switch
  • Carbon and ceramic rotary seal
  • Watertight, NBR rubber seal between motor and cover
  • Stainless steel screws and hardware
  • Temperature rating: 104 °F (40 °C)
  • On point: 6-1/2” (16.5 cm)
  • Off point: 2-1/2” (6.3 cm)
  • Maximum width: 8-3/32" (21 cm)
  • Maximum height: 11" (27.9 cm)
  • Weight: 12.4 lbs (5.6 kg)
  • Fits 12" (30 cm) diameter pits
  • 100% factory tested after assembly

Notes

Reserve Powered Design.
For unusual conditions a reserve safety factor is engineered into the design of every pump.

Product Specifications

Motor 1/3 HP
Voltage 115 V
Phase 1 Ph
Hertz 60
RPM 3450
Type Permanent split capacitor
Insulation Class B
Amps 5.5 Amps
Operation Automatic
Auto On / Off Points 6-1/2" (16.5 cm), 2-1/2" (6.3 cm)
Discharge Size 1-1/2" NPT
Solids Handling 3/8" (9 mm) spherical solids
Cord Length 9' (2.7 m) - 20' (6 m)
Cord Type UL listed with 3 prong plug
Max Head 18' (5.5 m)
Max Flow Rate 38 GPM (144 LPM)
Max Operating Temperature 104 °F (40 °C)
Cooling Oil filled
Motor Protection Auto reset thermal overload
Motor Housing Cast iron
Pump Housing Engineered plastic
Base Engineered plastic
Upper Bearing Ball bearing
Lower Bearing Ball bearing
Mechanical Seals Carbon and ceramic
Impeller Type Non-clogging vortex
Impeler Engineered plastic
Hardware Stainless steel
Motor Shaft 410 stainless steel
Gasket NBR
  • 60Hz
  • cCSAus
  • SSPMA
  • Powder Coated Tough

Technical Data

CAUTION

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 Electrical Code (NEC) and the Occupational Safety and Health Act (OSHA).

SELECTION GUIDE

  1. To select an appropriate basin, go to Basins.

Optional pump stand P/N 10-2421

ACCESSORIES

Model Comparison Charts

  • Product Model Comparison Chart: 60hz
    model seal mode volts phase amps hp hz lbs kg
    M73 Single Auto 115 1 5.5 1/3 60 12.5 5.6
    N73 Single Non 115 1 5.5 1/3 60 12.0 5.4
    BN73 Single Auto 115 1 5.5 1/3 60 13.5 6.1

Pump Performance Curves

Design Tools