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64 HD Series

Heavy Duty Solids-Handling Pumps

64 HD Series

Heavy-duty pumps with 4" high-head and 6" high-flow, flanged discharge

Features and Benefits


  • Pumping stations
  • Storm water removal
  • Wastewater transfer
  • Industrial wastewater


  • 4" High Head and 6" High Flow designs
  • Solids: 3-1/8” and 4" spherical capability
  • Discharge: 4” & 6” flanged horizontal
  • Seals – dual mechanical carbon/rotary ceramic/stationary, Buna-N elastomers
  • Construction – cast iron ASTMA A-48, Class 30, 30,000# tensile strength, protected with a corrosion-resistant, baked-on epoxy powder coating
  • Attaching hardware – 304 stainless steel
  • O ring elastomers – Buna-N
  • Impeller – 2-blade, ductile iron enclosed impeller
  • Pump housing wear ring
  • Moisture-detection system
  • Optional:
    • Silicon carbide seal(s)
    • Trimmed impeller
    • Additional cord length
    • Inverter duty motors
    • Rail systems


  • Stator – Class F insulation and lead wires, NEMA B design
  • Thermal sensor and leads
  • Housing – Stainless Steel, oil filled
  • Ball Bearings – dual, high-carbon chromium steel
  • Power cable length – 25’ (8 m)

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

Product Specifications

  • 25’ (8 m) of heavy duty power cable.
  • Heavy wall conduit threads and strain relief grommet for cable protection.
  • Protected cable entrance. The compression grommet allows for field replacement of the cable and each conductor is individually sealed to eliminate cord wicking of liquids.
  • Lifting lugs integral part of housing.
  • Oil-filled stainless steel motor housing assures uniform heat distribution, lubricates bearings, and conducts heat for cooler running.
  • Heavy-duty motor features ball bearing construction. Class F motor insulation is double-dipped and baked. End connections and lead wires are Class F. At maximum load, winding temperature will not exceed 250 °F (155 °C) with motor housing not submerged.
  • Tandem seals. Carbon/rotating, ceramic/stationary, Buna-N elastomers.
  • Upper and lower high carbon chromium steel ball bearings.
  • Stainless steel shaft and hardware resists corrosion.
  • Seal leak detector probes.
  • Thermal sensor protection.
  • 25’ (8 m) sensor cable.
  • Balanced ductile iron 2 vanes closed impeller with top & bottom pump out vanes for seal protection keyed and bolted to shaft.
  • Concentric case reduces radial loading for longer bearing and seal life.
  • 4" or 6" flanged horizontal Class 125 discharge.
  • Unit protected with a 2-part corrosion resistant epoxy coating.
  • Wear ring (4" discharge only)

Technical Data


For information on additional Zoeller® Engineered Products refer to catalog on Rail Systems, ZM1347; Control panels ZM1342; Float Switches and J-Boxes ZM1536; Float Switch Brackets and Pump Lifting Cables ZM1328; Check Valves and Piping Accessories ZM1348.

Pump Performance Curves

Design Tools