Capacity 60 gpm (227 lpm)
Head : 32 ft (9.75 m)

4/10 HP

The Myers ME40 series effluent pumps are one of the most efficient 4/10 HP pumps on the market today. The enclosed two-vane impeller provides the flow and head required for today's dosing systems and the many tough drainage applications. The ME40 is constructed of only the highest quality corrosion resistant materials - like cast iron, stainless steel and thermoplastics - for many hours of service in the harsh effluent environment. The ME40 is available in automatic models with piggyback or built-in mechanical float switch or manual models for use with external controls for precise dosing.

Advantages By Design
Two-vane impeller design provides maximum dosing efficiency
  • Enclosed design for high efficiency pumping.
  • Full 3/4 inch passageway.
Durable motor will deliver many hours of reliable service
  • Oil-filled motor for maximum heat dissipation and continuous bearing lubrication.
  • Overload protected, shaded pole motor eliminates starting switches and relays which are prone to fail.
The ME40 is designed for many hours of maintenance free operation
  • Positive sealing, quick connect float and switch cords make replacement simple if service is ever necessary.
  • Field tested, wide angle, mercury-free mechanical float switch provides maximum draw down. (Automatic models only)
  • Piggyback equipped automatic models allow pump to be run manually by unplugging switch and plugging pump directly into outlet.
  • Long, flexible Type 6 seal provides high pressure sealing with improved seal face protection.
  • Lower ball bearing eliminates sleeve bearing wear and holds the mechanical seal steady.
Unit of Measure



N/A 32 ft9.75 m

Solids Handling Capacity

N/A 3/4 in19 mm

Liquids Handling

N/A Domestic Effluent & Drain Water

Intermittent Liquid Temperature

N/A up to 140 ºFup to 60 ºC

Motor Electrical Data

N/A 115 volt 12 amp, 1Ø, 60 Hz
4/10 hp, 1600 rpm, shaded pole, oil-filled
230 volt, 6 amp, 1Ø, 60 Hz
4/10 hp, 1600 rpm, shaded pole, oil-filled

Acceptable pH Range

N/A 6 to 9

Specific Gravity

N/A 0.9 to 1.1


N/A 28 to 35 SSU

Minimum Sump Diameter (Simplex)

N/A 24 in61 cm

Minimum Sump Diameter (Duplex)

N/A 36 in91.4 cm


N/A 1600 rpm


N/A 4/10 hp


N/A 60 gpm227 lpm

Construction Material

Motor Housing Material

N/A Cast Iron, class 30, ASTM 48

Motor Bearing Material

N/A Ball Bearing, Lower Sleeve, Top

Enclosed Impeller Material

N/A Engineered Thermoplastic

Power Cord Material

N/A 10 ft. 16/3 SJTW/SJTW-A 20 ft. 16/3 SJTW/SJTW-A

Mechanical Shaft Seal Material

N/A Carbon/Ceramic, Type 6

Volute Material

N/A Thermoplastic

Fasteners Material

N/A 300 series SST

Agency Approvals

Agency Approvals