Capacity : 175 gpm (662 lpm)
Head : 33 ft (10.1 m)

Single and Double Seal

The WHR Series Pumps are designed for use in light Commercial and Residential Raw Sewage Applications. WHR Pumps will Pass a full 2-inch sphere. The recessed vortex impeller provides an unobstructed passage in the volute case which allows these pumps to handle stringy, trashy solids without plugging the impeller. The vortex impeller also greatly extends the pumps bearing life. Available in double seal configuration for extended motor life.

Advantages By Design
Durable Motor
  • Oil-filled for cooler operation and constant bearing lubrication.
  • Single phase PSC motors have no starting switch to fail.
  • Recessed impeller reduces radial bearing loads, increases bearing life.
Non Clog Operation
  • Recessed vortex impeller passes 2" solids.
  • Impeller operates completely out of volute passage.
  • Passes stringy trash and other solids which conventional semi-open impellers can not.
Available With Automatic Piggy-Back Switch for Maintenance-Free Operation
  • Piggy-backed mechanical float switch allows pump to operate automatically or can be unplugged for manual operation.
Unit of Measure



N/A 33 ft10.1 m

Liquids Handling

N/A Domestic and Light Commercial Sewage Raw

Intermittent Liquid Temperature

N/A 140 ºF60 ºC

Winding Insulation Temperature. (Class B)

N/A 266 ºF

Winding Insulation Temperature. (Class F)

N/A 130 ºC

Motor Electrical Data

N/A 1/2 HP, 115V, 1Ø, 60 Hz, PSC 1/2, 3/4, 1 HP 230V 1Ø, 60 Hz, PSC 200/230/460/575V 3Ø, 60 Hz

Acceptable pH Range

N/A 6 to 9

Specific Gravity

N/A 0.9 to 1.1

Discharge, NPT

N/A 2 in50.8 mm

Discharge, NPT (Optional)

N/A 3 in76.2 mm

Minimum Sump Diameter (Simplex)

N/A 24 in609.6 mm

Minimum Sump Diameter (Duplex)

N/A 30 in762 mm


N/A 175 gpm662 lpm

Construction Material

Motor Housing Material

N/A Cast Iron

Volute Case Material

N/A Cast Iron

Impeller Material

N/A Cast Iron, Vortex

Single Seal Power Cord Material

N/A 16/3, 20 ft., 1Ø 16/4, 20 ft., 3Ø SJOW/SJOWA

Double Seal Power Cord Material

N/A 14/3, 20 ft., 1Ø L/D 14/4 20 ft. 1Ø 16/4, 20 ft., 3Ø L/D

Mechanical Seal Material

N/A Carbon/Ceramic, Single, Type 21

Optional Double Tandem Mechanical Seal Material

N/A Carbon & Ceramic

Pump Shaft Material

N/A 416 SST

Motor Shaft Material

N/A 416 SST

Agency Approvals

Agency Approvals