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X71 Series

Grinder Pumps and Systems // Hazardous Location

X71 Series

Hazardous location pumps for Class I, Division 1, Groups C and D

Features and Benefits

Covered by U.S. patent number 6,364,620.

APPLICATIONS

  • Sewage lift stations.
  • Housing developments.
  • Low-pressure sewer systems.
  • High vertical lift or long force mains.

PUMP:

  • 440 stainless steel cutter and plate hardened to Rockwell C55-60.
  • Discharge size - 2-1/2" flanged horizontal adaptable to 3" flange, 2" NPT optional.
  • Seals - dual mechanical carbon/rotary ceramic/stationary, Buna-N elastomers.
  • Moisture detection system.
  • Construction - Cast iron ASTM A-48, Class 30, 30,000# tensile strength, protected with a corrosion-resistant, baked-on epoxy powder coating.
  • Balanced concentric pump housing and impeller.
  • Attaching hardware - 304 stainless steel.
  • Square ring seals - Buna-N.
  • Impeller - Ductile iron vortex design.
  • Optional:
    • Trimmed impeller
    • Silicon carbide seals
    • 50' (15.2 m) power cord and sensor cables
    • Bronze vortex impeller
    • Viton square ring seals
    • 2" NPT discharge (high head and high flow models only)
    • High flow
    • Automatic reversing (3 Ph flanged models only)
    • Non-sparking rail systems

MOTOR:

  • FM and cCSAus rated Class 1, Division 1, Group C & D construction.
  • Stator – Class F insulation and lead wires. NEMA B design.
  • Thermal sensor and leads.
  • Housing - cast iron, oil-filled.
  • Ball bearings – upper and lower high carbon chromium steel.
  • Power and sensor cable length: 25' (7.6 m).

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

Product Specifications

  • 25’ (8 m) heavy duty power cable.
  • Protected cable entrance.
  • Each conductor is individually sealed to eliminate cord wicking of liquids.
  • Lifting lug integral part of housing (orientation 90° from illustrated view).
  • Oil-filled, explosion-proof rated motor housing assures uniform heat distribution, lubricates bearings and conducts heat for cooler running.
  • Heavy-duty, explosion-proof rated 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 (121 °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.
  • Patented moisture detection system with upper and lower probes, protecting the motor from liquid entry.
  • Thermal sensor protection.
  • 25’ (8 m) sensor cable.
  • Ductile iron vortex impeller design, bronze optional, fully balanced with integral pump out vane to clear debris.
  • “Star” type stainless steel cutter and plate hardened to Rockwell C55-60.
  • Concentric case reduces radial loading for longer bearing and seal life.
  • 2-1/2” flanged horizontal discharge adaptable to 3” flange. Optional 2” NPT vertical discharge available for HH and HF models.
  • Vent hole helps prevent air locking.
  • Screw on pipe legs for field flexibility.
  • Class 30 cast iron housing protected with corrosion-resistant, baked-on epoxy powder coating.
  • Finned motor housing for quicker heat dissipation.