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koshin pb-65011 Submersible Dewatering Pump Heavy Duty koshin pumps
koshin pb-65011

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Manufacturer: Koshin Pumps
Series (10 Models):

Submersible Dewatering Pumps Heavy duty

Product Name:

Submersible Dewatering Pump Heavy Duty

Model Number:


Gallons Per Hour: 4740 (79 GPM)
Voltage: 115
Horsepower: 1/2

Quick Overview

NOTICE: This pump is discontinued. its replacement is PBX-65011


2" Heavy duty submersible dewatering pump, Ponstar. Electric pump for dirty water in ditches. Often found in rental shops, contractor fleets.

  •  Impeller and casing are manufactured from a blended rubber compound providing maximum wear resistance, up to three times over cast iron.
  •  Water is channeled through the outer wall to cool the motor for maximum endurance.
  •  Fits in a 8" diameter hole. It is compact, light-weight, easy to carry and handle.
  •  Double Silicon Carbide mechanical seals run in an "oil" filled chamber of liquid paraffin to prevent damage from periods of dry running.
  •  Liquid paraffin is used in the shaft seal, therefore water will not be contaminated even in the case of oil leakage.
  •  The cord is 20' of uni-body construction ensuring excellent water tightness. Includes heavy duty mechanical strain relief bracket.
  • The built-in thermal protector turns off the power supply in case of overload operation thus protecting the motor. 
  • Discharge port positioned vertical. Also it is replaceable. MNPT
  •  Applications: Construction site, excavations, well casings and general dewatering.
  •  Utilities, manhole and vault draining, loading docks.
  •  Residential, draining of basements, crawl spaces and swimming pools

Additional Information

Model Number PB-65011
Series Submersible Dewatering Pumps Heavy duty
Warranty (YRS.) 3
Max Flow (GPM.) 79
Max Flow GPH 4740
TDH Maximum (Ft) 32
Horsepower 0.5
Watts 400
Outlet Connection Type MNPT
Outlet (In.) 2
Wetted Materials Aluminum
Elastomers / O-ring Buna-Nitrile
Voltage (V) 115
Phase (Ø) Single(1)
Motor Frequency 60
Motor Hermetically Sealed
Motor Amps (A) 7
Speed (RPM.) 1725
Max Operating Temperature (F) 104
Max Particle Size (In) 0.12
Viscosity Milk 3.20 cp 40.00 ssu
Stages 1
Shaft 304SS
Length (In.) 16
Mechanical Seal Yes
Mechanical Seal Face SiC
Mechanical Seal Type Double
Motor Bearings Ball
Applications Contractor, Dewatering, Portable, Submersible
Other 7-1/2" diameter. Pump requires minimum hole size of 7-3/4" diameter. Motor is thermally protected. Contact PumpBiz for level switches, starter boxes and other options.
Min. Generator capacity 2700 watts.
Impeller Material Hard rubber, semi-open
Cord Length (Ft.) 20
Duty Continuous
Drain Yes
Country of Manufacture Japan
Weight (Lbs) 36
Time to Ship (DAYS) 1 day
UPC 4971770430419
GPM Of Water At 10 Feet Of Head 60
GPM Of Water At 20 Feet Of Head 40