Standard and Explosion-proof

Myers High Head 7 1/2, 10 & 15 horsepower Submersible Centrifugal Grinder Pumps are designed for Municipal, Commercial or Industrial Applications. These pumps are especially suited for use in pressure sewer applications or in systems with long discharge runs or high static heads. The pumps feature a heavy-duty cutter mechanism and recessed impeller designed to efficiently grind typical sewage solids into a fine slurry.

The grinder pumps are available in standard and FM Listed explosion-proof construction for use in Class 1, Groups C & D hazardous locations.

Myers grinder pumps can be installed in a variety of packaged systems. Factory-assembled simplex or duplex packages with guide rail systems are available. Individual rail components are also available for installation in onsite concrete systems. Myers offers a complete line of submersible sump, sewage, effluent, grinder, non-clog wastewater pumps, controls, basins and accessories.

Advantages by Design
Ideal for use in Pressure Sewer Systems.
  • Recessed impeller provides steep non-overloading operating curve.
Durable Motor will deliver many years of Reliable Service.
  • Oil-filled motor for maximum heat dissipation and constant bearing lubrication.
  • Recessed impeller reduces radial bearing loads increases bearing life.
  • High torque three phase motors for assured starting under heavy load.
  • Seal leak probes and on-winding heat sensors warn of seal leak condition, and stop motor if motor overheats. Helps prevent costly motor damage.
Designed for easy maintenance.
  • Shredding ring and grinder impeller are replaceable without dismantling pump or motor.
Unit of Measure



N/A 257 ft78 m

Liquids Handling

N/A Domestic Raw Sewage

Intermittent Liquid Temperature

N/A up to 140 ºFup to 60 ºC

Winding Insulation Temperature. (Class H)

N/A 180 ºC356 ºF

Motor Electrical Data

N/A 200/230/460/575 volts 3 phase, 60 Hz 3450 RPM 7 1/2, 10 and l5HP

Acceptable pH Range

N/A 6 to 9

Specific Gravity

N/A 0.9 to 1.1


N/A 28 to 35 SSU

Discharge (Flange Dim.)

N/A 2 1/2 in63.5 mm


N/A 15 hp


N/A 200 V


N/A 3


N/A 60 Hz


N/A 256.2 A88.7 kV·A


N/A 68.4 A17.6 kW16.0 kV·A

NEC Code Letter


Service Factor

N/A 19.7 kW1.0


N/A 150 gpm568 lpm


N/A Consult factory for applications outside of these recommendations.
FM Class 1, Group C & D.

Construction Material

Motor Housing Material

N/A Cast Iron, Class 30, ASTM A48

Seal Housing Material

N/A Cast Iron, Class 30, ASTM A48

Volute Case Material

N/A Cast Iron, Class 30, ASTM A48

Cord Cap Material

N/A Cast Iron, Class 30, ASTM A48

Recessed Impeller Material

N/A Ductile Iron

Power Cord Material

N/A 25 ft. SOOW

Control Cord Material

N/A 25 ft. SOOW

Standard Double Tandem Mechanical Seal Material

N/A Carbon & Ceramic

Optional Double Tandem Mechanical Seal Material

N/A Lower Tungsten Carbide

Pump Shaft Material

N/A 416 SST

Motor Shaft Material

N/A 416 SST

Fasteners Material

N/A 300 series SST

Shredding Ring Material

N/A 440 SST, 58-60 Rockwell

Grinder Impeller Material

N/A 440 SST, 58-60 Rockwell

Agency Approvals

Agency Approvals