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840 Grinder Pump


Grinder Pumps // Commercial Grinder Pumps // Shark® Series

840 Grinder Pump

Pump systems and reversing controls

Features and Benefits

  • Durable, heavy-duty, finned cast iron construction
  • Oil-filled, hermetically-sealed motor with Class F insulation
  • Hardened stainless steel cutter and disc
  • Cutters protected from abrasive solids
  • Cutters can automatically alternate direction to enhance blade life and free hang-ups (automatic or manual)
  • Stainless steel screws, bolts and lifting bail
  • Easily adapts to many existing competitors’ rail systems
  • Tandem seals with leak detection
  • Automatic thermal overload protection (1 Ph)
  • Thermal sensor protection (standard on 3 Ph)
  • Legs for free-standing installation
  • Preassembled systems available
  • Corrosion-resistant, powder coated epoxy finish
  • 1 year limited warranty

Standard Features:

  • Reversible cutter action (manual/auto**)
  • 1-1/4" NPT vertical discharge
  • Carbon/ceramic tandem seals
  • Thermal sensors** (overload on 1PH)
  • Moisture probes**
  • Balanced ductile iron impeller
  • Stainless steel cutter and plate (R-C 55-60)
  • Stainless steel shaft
  • Stainless steel lifting bail
  • Corrosion-resistant, powder coated epoxy paint
  • 20' (6 m) power cord, 20' (6 m) sensor cord
  • Options:
    • Extended cord lengths
    • Anti-siphon device
    • Bronze impeller

All variable level float switches in this section are mechanically activated and do not contain mercury.

Product may not be exactly as pictured.

**Requires circuit in control panel to function.

Product Specifications

60hz 50hz
Motor 2 HP 2.5 - 2.8 kW
Voltage 200 - 575 V 220 or 380 V
Phase 1 or 3 Ph 1 Ph or 3 Ph
Hertz 60 Hz 50 Hz
RPM 3450 RPM 2800 RPM
Type Capacitor start capacitor run or 3 Ph
Insulation Class F Class F
Amps 4.4 - 12.0 A
Operation Nonautomatic Nonautomatic
Discharge Size 1-1/4" NPT vertical 1-1/4" NPT (CE models with BSPT)
Cord Length 20' (6 m) standard 6 m (20') standard
Cord Type SOW/SOOW (CE model H07RN-F)
Max Head 26.8 m (88')
Max Flow Rate 12.7 m3/hr (57 GPM)
Max Operating Temperature 54 °C (130 °F)
Cooling Oil filled Oil filled
Motor Protection Thermal overload (1 Ph), Thermal sensor (3 Ph) Auto reset thermal overload (1 PH), Thermal sensor protection (3 Ph)
Cap Cast iron
Motor Housing Cast iron
Pump Housing Cast iron
Base Cast iron
Upper Bearing Ball bearing
Lower Bearing Ball bearing
Mechanical Seals Carbon and ceramic Carbon and ceramic
Impeller Type Non-clogging vortex
Impeller Ductile iron or bronze (optional) Bronze
Hardware Stainless steel
Motor Shaft 416 stainless steel
Gasket Neoprene
  • Cert 60Hz
  • Cert Sa
  • Cert Tough
  • Swpa