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Submersible Dewatering Pump Heavy Duty

Model Number
koshin pb-65011

Koshin PB-65011

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

OBSOLET: Replaced by PBX-65011

  •  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
More Information
Model Number PB-65011
Series Submersible Dewatering Pumps Heavy duty
Max Flow (GPM.) 79
Max Flow GPH 4740
TDH Maximum (Ft) 32
Horse Power (HP) 1/2
Horsepower (IE .5, 1, 1.5, 20) .5
Watts 400.000000
Outlet Connection Type MNPT
Outlet (In.) 2
Wetted Materials Aluminum
Elastomers / O-ring Buna-Nitrile
Voltage (V) 115
Voltage (Range) 110-120
Phase (Ø) Single (1)
Motor Frequency 60
Motor Amps (A) 7
Motor Hermetically Sealed
Speed (RPM.) 1725
Max Operating Temperature (F) 104
Max Particle Size (In) 0.1200
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
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
Port Rotation No
Country of Manufacture Japan
Weight (Lbs) 36.000000
UPC 4971770430419
Warranty (YRS.) 3
GPM Of Water At 10 Feet Of Head 60
GPM Of Water At 20 Feet Of Head 40

Koshin pumps are the standard and known world wide in the contractor, rental, and portable pump markets as the brand to use. Most portable water pumps by Koshin feature Honda gas engines. Koshin manufactures a complete line of self priming centrifugal pumps for general transfer, high pressure and trash debris filled liquids. These pumps come in gas or diesel engine and single phase electric submersibles. Koshin is the most copied pump design coming out of China, but do not think they are the same. Use only the best, the original Koshin.

For over 70 years Koshin has continued to invest in new product testing and development. Koshin totally redesigned its production facilities in 2013 adding in house aluminum die casting, production automation, and state of the art process flow management. With a core philosophy of customer satisfaction, Koshin insures that each product off of its production line is of the finest quality. This is why we can proudly say that the performance specification found in this catalog are guaranteed minimum. This is often not the case with our competitors, who inflate actual performance values.

To further insure our valued customers that Koshin stands by our produces, we offer a 3 year limited warranty against manufactured defects. Our pumps are used and loved in 160 all over the world.

Koshin… the world’s toughest pump.