71 HD Series Grinder Pump

Features and Benefits

Covered by US Patent Number 6,364,620.

APPLICATIONS

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

SPECIFICATIONS

PUMP:

• 440 stainless steel cutter and plate hardened to Rockwell C55-60
• Discharge: 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 ASTMA 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 seal(s)
  • Viton square ring seals
  • Additional cord length
  • 2” NPT vertical discharge – HH and HF units only
  • High flow
  • Automatic reversing (3 Ph flanged models only)
  • Rail systems

MOTOR:

• Stator – Class F insulation and lead wires, Nema B design
• Thermal sensor with leads
• Housing – cast iron, oil-filled
• Ball bearings – upper and lower high carbon chromium steel
• Power and sensor cable length – 25′ (7.6 m)