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  • 1.25" Bronze gear pump
  • 1.25" Bronze gear pump



N Oberdorfer Gear Pumps Bronze

Product Name:

1.25" Bronze gear pump

Model Number:


Quick Overview

Up to 55GPM

Availability: In stock


1 1/4" Bronze rotary gear pump without relief valve. Pedestal mount pump only. Upper drive shaft location. See performance graph for flow rates vs motor RPM and HP (under image tab) . If used above 900 RPM, then duty cycle is limited to intermittent.

Continuous duty on lubricating liquids like oils. Use slower speed motor at lower flow rates for water and non-lubricating liquids if you need continuous duty. Pump is avaible in a packed or lip seal styles for the shaft sealing.

Additional Information

Model Number N11500-21
Series N Oberdorfer Gear Pumps Bronze
Weight 22
Country of Manufacture United States
Time to Ship 2-3 days
Warranty 1
Max Flow 60
TDH Maximum 231
TDH Maximum PSI 100
HP Required 5
Inlet Connection Type FNPT
Inlet 1.25
Outlet Connection Type FNPT
Outlet 1.25
Wetted Materials 304SS, Bronze
Elastomers Viton
Speed variable
Self Priming Yes
Suction Lift 20
Max Operating Temperature 400
Max Volume Of Suspended Solids 0
Max Particle Hardness 1
Viscosity Glycerine 880.00 cp 5000.00 ssu
Shaft 304SS
Coupling Y
Applications Constant Pressure, Drum, Flooded Suction, Fuel Oil, Self-Priming
Pump Bearing Carbon
Impeller Material Bronze gears
Duty Continuous on lubricating liquids. Use slow speed motor for water.
Drain Yes
Port Rotation Yes

Supporting Docs

1.251.25" Bronze gear pump   Size: (45.93 KB)
1.251.25" Bronze gear pump   Size: (25.41 KB)