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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

  1. 25’ (8 m) of heavy duty power cable.
  2. Heavy wall conduit threads and strain relief grommet for cable protection.
  3. 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.
  4. Lifting lugs integral part of housing.
  5. Oil-filled stainless steel motor housing assures uniform heat distribution, lubricates bearings, and conducts heat for cooler running.
  6. 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.
  7. Tandem seals. Carbon/rotating, ceramic/stationary, Buna-N elastomers.
  8. Upper and lower high carbon chromium steel ball bearings.
  9. Stainless steel shaft and hardware resists corrosion.
  10. Seal leak detector probes.
  11. Thermal sensor protection.
  12. 25’ (8 m) sensor cable.
  13. Balanced ductile iron 2 vanes closed impeller with top & bottom pump out vanes for seal protection keyed and bolted to shaft.
  14. Concentric case reduces radial loading for longer bearing and seal life.
  15. 4" or 6" flanged horizontal Class 125 discharge.
  16. Unit protected with a 2-part corrosion resistant epoxy coating.
  17. 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