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Myers MW50-21 - 1/2 HP 230V Sewage Pump - Manual

  • Enclosed design for high-efficiency pumping
  • Eliminates possibility of jamming between impeller and volute
  • Passes full 2” solids
  • Original performance can be restored if wear occurs by replacing volute seal ring
Myers MW50-21 - 1/2 HP 230V Sewage Pump - Manual - MW50-21
Myers MW50-21 - 1/2 HP 230V Sewage Pump - Manual - MW50-21
Item #: MW50-21
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Myers MW50-21 - 1/2 HP 230V Sewage Pump - Manual

The Myers MW50 series sewage pumps are constructed of the most durable combination of materials to withstand the harshest sewage environments. The non-clog impeller can pass up to 2” solids. Provides the flow and head required residential and light commercial applications. Models available for manual operation with external controls, or automatic operation with tethered, piggyback mechanical float switch.


  • Enclosed design for high-efficiency pumping
  • Eliminates possibility of jamming between impeller and volute
  • Passes full 2” solids
  • Original performance can be restored if wear occurs by replacing volute seal ring
  • Oil-filled motor for maximum heat dissipation and continuous bearing lubrication
  • High-torque, permanent split capacitor (PSC) motors; no starting switches or relays to wear out
  • Field-tested, wide-angle, mercury-free piggyback mechanical float switch provides maximum drawdown (automatic models only)
  • Long, flexible type 6 seal provides high-pressure sealing with improved seal face protection by location
  • Lower ball bearing eliminates sleeve bearing wear and significantly reduces motor wear
  • Low-amp draw from the efficient PSC motor means less heat build-up

Myers MW50-21 - 1/2 HP 230V Sewage Pump - Manual

BODY CONSTRUCTION: Class 30 Cast Iron

HORSEPOWER: 1/2 HP

MAXIMUM HEAD: 27'

MAXIMUM CAPACITY: 135 GPM

FLOW at 10' LIFT: 130 GPM

SWITCH TYPE: Wide-Angle Mercury-Free Piggyback Mechanical Float

MINIMUM SUMP DIAMETER: Simplex: 24" Duplex: 36"

DISCHARGE PIPE SIZE: 2" NPT

MAXIMUM SOLIDS HANDLING SIZE: 2"

AMP DRAW (full load): 4.5 Amps on 230v / 9 Amps on 115v

CORD LENGTH: 20' (16/3 SJTW)

VOLTAGE: Available in 230v 1-phase or 115v, 60 Hz

MAX INTERMITTENT LIQUID TEMP: 140 degrees F (60 deg C)