7021 Grinder Pump

  • Tri-Slice® Cutter and Plate
  • Corrosion-Resistant Construction 
  • Oil-Filled Motor
  • 100% Factory-tested
  • View More Details

This progressing cavity grinder pump is designed to meet the demands of low-pressure environments, making it ideal for sanitary sewage pumping stations, pressure sewage systems, and commercial or residential sewage removal. It features a Tri-Slice® Cutter and Plate for efficient solids reduction, corrosion-resistant construction for durability in harsh conditions, and an oil-filled motor for long-lasting, reliable performance. Plus, every Zoeller pump is 100% factory-tested to ensure it performs perfectly from day one.

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7021 Grinder Pump
7021 Grinder Pump

This progressing cavity grinder pump is designed to meet the demands of low-pressure environments, making it ideal for sanitary sewage pumping stations, pressure sewage systems, and commercial or residential sewage removal. It features a Tri-Slice® Cutter and Plate for efficient solids reduction, corrosion-resistant construction for durability in harsh conditions, and an oil-filled motor for long-lasting, reliable performance. Plus, every Zoeller pump is 100% factory-tested to ensure it performs perfectly from day one.

Product Details

APPLICATIONS

  • Sanitary sewage pumping stations
  • Pressure sewage systems
  • Commercial and residential sewage removal

SPECIFICATIONS

Pump:

  • Discharge: 1-1/4” BSPT horizontal
  • Seals – Silicon Carbide/Carbon, Buna-N elastomers
  • Construction – motor housing, cover, adapter and pump housing cast iron ASTMA A-48, corrosion-resistant, powder coated epoxy finish
  • Attaching hardware – 304 stainless steel
  • Square ring and gasket – Viton
  • Stainless steel cutter and plate hardened to Rockwell C 55-60
  • Pressure relief valve
  • Stainless steel legs provide for free-standing installation
  • Stainless steel helix hydraulic rotor
  • Buna-N hydraulic stator

Motor:

  • Permanent split capacitor (PSC) motor
  • Stator – Class B insulation and lead wires, Nema B design
  • Integral thermal overload protection with automatic reset
  • Housing – Finned cast iron, oil-filled
  • 416 stainless steel motor shaft
  • Upper and lower ball bearings – dual, high carbon chromium steel
  • 6 m (20′) power cord

Note:
Product information presented here reflects conditions at time of publication. Consult factory regarding discrepancies or inconsistencies.

Product Specifications

Hertz:

50 Hz

Horsepower:

2 HP

Voltage:

220V

Discharge:

1-1/4″

Phase:

1 Ph

Impeller Type:

Hydraulic rotor and stator

RPM:

1440

Solids Handling:

Slurry