My Cart

Gear Pump & 1/4HP Motor

  • Manufacturer:
  • Series (13 Models):
  • Product Name:
    Gear Pump & 1/4HP Motor
  • Model Number:
    N992R-01C81
1/4HP 115/230V ODP
Model Number
N992R-01C81
$1,630.20
Oberdorfer - N992R-01C81: Gear Pump

Bronze Gear Pump with housings and gears are made of top quality bronze; shafts are from stainless steel 303. Continuous Duty gear pump fitted with 115/230v 1/4hp motor. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life. Includes relief valve in pump head.

Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. 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 back pressure 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 other lubricants. The maximum shaft speed is 1750 RPM.

FEATURES

  • Rugged Corrosion Resistant Bronze Construction
  • Compact Close-Coupled Design
  • Stainless Steel Shafts
  • Durable Bronze Helical Gears Provide Quiet Operation
  • Process Lubricated Carbon Graphite Bearings
  • O-Ring Cover Seal For Maximum Leak Protection
  • Lip Seal or Mechanical Seal

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. 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.

For pumping oil direct from crankcase or oil reservoir, drums, containers, transfer diesel fuel to vehicles, pumping other liquids and chemicals compatible with materials of construction. Basic metals of construction allow temperature range of -40° to 250°F.

More Information
Model Number N992R-01C81
part number N992R-01C81
Series N992 Gear Pumps
Max Flow (GPM.) 4
Max Flow GPH 240
TDH Maximum (Ft) 231
TDH Maximum (PSI) 100
Horse Power (HP) 1/4
Horsepower (IE .5, 1, 1.5, 20) 0.25
Inlet Connection Type FNPT
Inlet (In.) 0.5
Outlet Connection Type FNPT
Outlet (In.) 0.5
Wetted Materials 304SS, Bronze
Elastomers / O-ring Buna-Nitrile
Voltage (V) 115/230
Voltage (Range) 110-120/220-240
Phase (Ø) Single (1)
Motor Frequency 60
Motor ODP
Speed (RPM.) 1725
Self Priming Yes
Suction Lift (FT.) 20
Max Operating Temperature (F) 140
Viscosity Glycerine 880.00 cp 5000.00 ssu
Shaft 304SS
Length (In.) 14.2500
Mechanical Seal LIP SEAL
Mechanical Seal Type Single
Motor Bearings Ball
Coupling Y
Other As a general rule, the suction lift should be kept at an absolute minimum by placing the pump as close to the liquid source as possible. A gear pump in new condition can lift 20 feet of water in the suction line. A foot valve (preferably with built-in strainer) is recommended at the beginning of the suction line. For a first start-up, the pump should be primed to avoid dry running. Minimum size of the suction pipe is the size of the pump inlet port. For longer suction lines (over 3 feet) or for viscous liquids, the pipe should be at least one size or two sizes larger than the pump inlet port.
Pump Bearing Carbon
Impeller Material Bronze
Cord Length (Ft.) 0
Duty Continuous
Drain No
Port Rotation Yes
Country of Manufacture United States
Weight (Lbs) 28.000000
Warranty (YRS.) 1
>