Product Name: Bronze gear pump
Model Number: N993C-M26
Manufacturer: Oberdorfer Pump
Bronze gear pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.

Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the backpressure in the discharge line. Shaft speed and flow are directly proportional. Recommended pressure limits are 100 psi for water and non-lubricants, 150 psi for oil and lubricants. Great for diesel fuel transfer and glycol pump. Maximum shaft speed is 1750 rpm.

A relief valve is necessary in the system if the discharge line contains any throttling devices, such as a shut-off valve, a spray nozzle or other restrictive device. This will return the liquid to the suction side or to the tank. The relief valve is also available as part of the pump itself (R-model pumps). However, built-in relief valves are only good for intermittent service. If used continuously, the pump will over heat. A built-in relief valve is strictly a safety device against overpressure. It will not work successfully as a pressure or flow control device. For this purpose a separate relief valve in the pressure line must be used.

Service life will be increase substantially if the liquid pumped is clean and has a lubricity value. These pumps have extremely close tolerances.

See performance curve under images tab.



Usual Ship Time: 2-3 days

Your Price: $999.00 EA
Maximum Flow 8 gallons/min 
TDH (Head) Maximum @ 0GPM 100 PSI 
Head (TDH) Maximum @ 0GPM 231 FT 
HP Standard 0.75 HP 
Inlet Connection Type FNPT 
Inlet 0.5 " 
Outlet Connection Type FNPT 
Outlet 0.5 " 
Wetted Materials 304SS 
Elastomers Buna-Nitrile 
Voltage 115/230 V 
Frequency 60 Hz 
Motor ODP 
Speed 1725 RPM 
MTR Cord Length 0 FT 
Self Priming Yes 
Suction Lift 15 FT 
Max Operating Temp 14 °F 
Viscosity Glycerine 880.00 cp 5000.00 ssu 
Max. Particle Size 0 " 
Max Specific Gravity 1.4 sp. gr. 
Max. Particle Hardness 5 MOH 
Max. Volume of Suspended Solids 0 % 
Shaft 304SS 
Mechanical Seal Rotary lip 
Mechanical Seal Type Single 
Pump Bearing Carbon 
Warranty 1 Year/s 
Applications Flooded Suction 
Constant Pressure 
Fuel Oil 
High Pressure 
Hydrostatic Test 
PH High 11 pH 
Other For diesel fuel transfer simply set on drum. 
Country of Origin USA 
Drain Plug No 
Weight 42 lbs
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