My Cart

1.25" Bronze gear pump

Up to 55GPM
Model Number
N11500-21
$1,642.00
Oberdorfer N11500-21 1.25 Bronze gear pump

Oberdorfer N11500-21

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.

More Information
Model Number N11500-21
part number N11500-21
Series N Oberdorfer Gear Pumps Bronze
Max Flow (GPM.) 60
Max Flow GPH 3600
TDH Maximum (Ft) 231
TDH Maximum (PSI) 100
Inlet Connection Type FNPT
inlet size 1 ¼"
Inlet (In.) 1.25
Outlet Connection Type FNPT
Outlet (In.) 1.25
Wetted Materials 304SS, Bronze
Elastomers / O-ring FKM
Speed (RPM.) variable
Self Priming Yes
Suction Lift (FT.) 20
Max Operating Temperature (F) 400
Viscosity Glycerine 880.00 cp 5000.00 ssu
Shaft 304SS
Mechanical Seal PACKING
Mechanical Seal Type Single
Coupling Y
Other Clockwise rotation from pump end.
Pump Bearing Carbon
Impeller Material Bronze gears
Duty Continuous on lubricating liquids. Use slow speed motor for water.
Drain No
Port Rotation Yes
Country of Manufacture United States
Weight (Lbs) 22.000000
Warranty (YRS.) 1
>