Oberdorfer N1000 Series Gear Pump FEATURES Pump Body: Bronze Ports: 1/4" NPT Flow: 2.1 GPM Max Pressure: 150 PSI Max Bearings: Heavy Duty Carbon Bearings (Self Lubricating) Gears: Special Cast Bronze Helical Gears Shaft Seal: Formed Ring Seal Packing Standard. Optional Lip Seals or Mechanical Seals in Buna or Viton. Shaft: Stainless Steel Shafts Motor / Drive: Either direct drive with flexible coupling or pulley drive can be used. We have many motor options and can assemble for you.     APPLICATIONS / CHARACTERISTICS BRONZE PEDESTAL MOUNT ROTARY GEAR PUMPS Service life will be increased substantially if the liquid pumped is clean and has some degree of lubricity. Liquids compatible with bronze and stainless steel can be pumped providing proper seal has been specified. Close tolerances and the positive pumping action make the rotary gear pump capable of lifting water on the suction side as high as 20 feet. Oberdorfer Gear Pump, Bronze, 1/4"NPT Ports, Packed Seal      

Oberdorfer N1000 Series Gear Pump FEATURES Pump Body: Bronze Ports: 1/4" NPT Flow: 2.1 GPM Max Pressure: 150 PSI Max Bearings: Heavy Duty Carbon Bearings (Self Lubricating) Gears: Special Cast Bronze Helical Gears Shaft Seal: Formed Ring Seal Packing Standard. Optional Lip Seals or Mechanical Seals in Buna or Viton. Shaft: Stainless Steel Shafts Motor / Drive: Either direct drive with flexible coupling or pulley drive can be used. We have many motor options and can assemble for you.     APPLICATIONS / CHARACTERISTICS BRONZE PEDESTAL MOUNT ROTARY GEAR PUMPS Service life will be increased substantially if the liquid pumped is clean and has some degree of lubricity. Liquids compatible with bronze and stainless steel can be pumped providing proper seal has been specified. Close tolerances and the positive pumping action make the rotary gear pump capable of lifting water on the suction side as high as 20 feet. Oberdorfer Gear Pump, Bronze, 1/4"NPT Ports, Packed Seal, Relief Valve  

Oberdorfer N991 Gear Pump Peo 1/4" Brz Buna  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 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 other lubricants. The maximum shaft speed is 1750 RPM. Close-coupled gear pumps are normally supplied with a Nitrile lip seal. A lip seal made of fluoroelastomer is available as an option. For a fluoroelastomer Seal, add S5 to the pump model number.   FEATURES Rugged corrosion resistant bronze construction Compact close-coupled design Stainless steel shafts Durable bronze spur gears Process lubricated carbon graphite bearings O-ring cover seal for maximum leak protection Nitrile Lip Seal -standard Easy field assembly to a variety of motor frames For typical DC motor pump units - see N991-32 DC For compact AC motor pump units - see Close Coupled Bronze Adapterless Rotary Gear Pumps For bronze pedestal pumps and mechanical seal styles - see model N1000 DRIVE Close-coupled pumps are mounted directly to the electric motor by means of a suitable adapter bracket. The pump drive shaft is connected to the motor shaft by a flexible coupling.   LIQUIDS & TEMPERATURES These pumps are suitable for all liquids that are compatible with bronze. Most common liquids are water, oil, and mild chemicals in the pH range of 4 to 11. Viscous liquids require reduced shaft speeds of 1150 RPM or lower. (Consult factory.) Liquids containing solids, abrasives, powders, or paint pigments are definitely not recommended for gear pumps. If abrasives are unavoidable, use a very low shaft speed. The recommended liquid temperature range is from 32o F to 140o F for best pump life. If more extreme temperature conditions exist, factory should be consulted. Freezing of water-filled pumps can cause damage and must be avoided. Oils at low temperatures are very viscous requiring a lower speed or extra power.   SUCTION LIFT 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.

Oberdorfer N992 Gear Pump Peo Brz 3/8" Buna 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 Easy Field Assembly to a Variety of Motor Frames - For Typical DC Motor Pump Units - see N992 DC For Compact AC Motor Pump Units. See Close Coupled Bronze Adapterless Rotary Gear Pumps. For Danfoss Hydraulic Motor Driven Pump Units. See Adapter 9960 For Bonze Pedestal Pumps. See Model N2000 For Close-Coupled Ductile Iron Pumps - See Model C992 LIQUIDS & TEMPERATURES These pumps are suitable for all liquids that are compatible with bronze. Most common liquids are water, oil, and mild chemicals in the pH range of 4 to 11. Viscous liquids require reduced shaft speeds of 1150 RPM or lower. (Consult factory.) Liquids containing solids, abrasives, powders, or paint pigments are definitely not recommended for gear pumps. If abrasives are unavoidable, use a very low shaft speed. See price book for the recommended liquid temperature range of lip and mechanical seals. If more extreme temperature conditions exist, factory should be consulted. Freezing of water-filled pumps can cause damage and must be avoided. Oils at low temperatures are very viscous requiring a lower speed or extra power. SUCTION LIFT 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 startup, 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. If the discharge line contains any throttling devices such as a shut-off valve, a spray nozzle or other restrictive device, it is necessary to have a relief valve in the system, which returns 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 overheat. 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. Unless otherwise specified, the pump motor unit is supplied by the factory for shaft rotation counterclockwise from shaft end. Reversing motor will reverse “in and “out” ports and also requires changing relief valve location. The relief valve is always on the inlet side of this pump series. The factory pressure setting is 50 PSIG. To increase pressure, turn the relief valve adjusting screw in a clockwise direction.    

Oberdorfer N993 Gear Pump Peo 1/2" Buna Lip 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 Nitrile Lip Seal -standard Easy field assembly to a variety of motor frames For compact AC motor pump units - see Close Coupled Bronze Adapterless Rotary Gear Pumps For Danfoss hydraulic motor driven pump units - see adapter 9960 For bronze pedestal pumps and mechanical seal styles - see model N3000 For close-coupled ductile iron pumps - see model C993 DRIVE Close coupled pumps are mounted directly to the electric motor by means of suitable adapter bracket. The pump drive shaft is connected to the motor shaft by a flexible coupling.   LIQUIDS & TEMPERATURES These pumps are suitable for all liquids that are compatible with bronze. Most common liquids are water, oil, and mild chemicals in the pH range of 4 to 11. Viscous liquids require reduced shaft speeds of 1140 RPM or lower. (Consult factory.) Liquids containing solids, abrasives, powders, or paint pigments are definitely not recommended for gear pumps. If abrasives are unavoidable, use a very low shaft speed. The recommended liquid temperature range is from 32o F to 140o F for best pump life. If more extreme temperature conditions exist, factory should be consulted. Freezing of water-filled pumps can cause damage and must be avoided. Oils at low temperatures are very viscous requiring a lower speed or extra power.   SUCTION LIFT   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.

Oberdorfer N1100 Series Gear Pump FEATURES Pump Body: Bronze Ports: 1 1/4" NPT Flow: 40 GPM Max Pressure: 150 PSI Max Bearings: Self-Lubricating Carbon Bearings Gears: Bronze Helical Gears Shaft Seal: Viton Lip Seals Standard, Buna Lip Seal Optional. Shaft: Stainless Steel Shafts Motor / Drive: The pump is driven directly from the electric motor shaft by means of a flexible coupling. An aluminum adapter connects the pump to the motor. We have many motor options and can assemble for you. BRONZE CLOSE COUPLED ROTARY GEAR PUMPS Service life will be increased substantially if the liquid pumped is clean and has some degree of lubricity. Liquids compatible with bronze and stainless steel can be pumped providing proper seal has been specified. Close tolerances and the positive pumping action make the rotary gear pump capable of lifting water on the suction side as high as 20 feet.   Oberdorfer N1100 Gear Pump Bronze 1 1/4"NPT Viton Lip  

Oberdorfer N11HDM Gear Pump FEATURES Pump Body: Bronze Ports: 1 1/4" NPT Flow: 60 GPM Max Pressure: 150 PSI Max Bearings: Self Lubricating Carbon Bearings Gears: Bronze Helical Gears Shaft Seal: Acrylic-Graphite packing is standard, Teflon Optional. Optional Lip Seals in Viton/Teflon or Buna, Mechanical Buna or Viton Seals. Shaft: Stainless Steel Shafts Motor / Drive: Direct drive is the recommended drive arrangement. This pump is suitable for belt drive applications without needing pillow block bearings to achieve acceptable pump life. Electric Clutch Drive Available. We have many motor options and can assemble for you.   APPLICATIONS ROTARY PEDESTAL GEAR PUMP BRONZE WITHOUT ELECTRIC CLUTCH   Service life will be increased substantially if the liquid pumped is clean and has some degree of lubricity. Liquids compatible with bronze and stainless steel can be pumped providing proper seal has been specified. Close tolerances and the positive pumping action make the rotary gear pump capable of lifting water on the suction side as high as 20 feet.   Oberdorfer Gear Pump Bronze 1 1/4"NPT Buna Mechanical Seal

Oberdorfer N13HD Series Gear Pump FEATURES Pump Body:  Bronze Ports:   1 1/2" NPT Flow:   86 GPM Max Pressure:   150 PSI Max Bearings:   Self Lubricating Carbon Bearings Gears:   Bronze Helical Gears Shaft Seal:   Acrylic-Graphite packing is standard, Teflon Optional. Optional Lip Seals in Viton/Teflon or Buna, Mechanical Buna or Viton Seals. Shaft:  Stainless Steel Shafts   Motor / Drive: Direct drive is the recommended drive arrangement. This pump is suitable for belt drive applications without needing pillow block bearings to achieve acceptable pump life. Electric Clutch Drive Available. We have many motor options and can assemble for you. APPLICATIONS / CHARACTERISTICS ROTARY PEDESTAL GEAR PUMP BRONZE WITH OR WITHOUT ELECTRIC CLUTCH   Service life will be increased substantially if the liquid pumped is clean and has some degree of lubricity. Liquids compatible with bronze and stainless steel can be pumped providing proper seal has been specified. Close tolerances and the positive pumping action make the rotary gear pump capable of lifting water on the suction side as high as 20 feet.   Oberdorfer N13HDL Gear Pump Bronze 1 1/2"NPT Viton-Teflon Lip Seal

Oberdorfer N1100 Series Gear Pump FEATURES Pump Body: Bronze Ports: 1 1/4" NPT Flow: 40 GPM Max Pressure: 150 PSI Max Bearings: Self-Lubricating Carbon Bearings Gears: Bronze Helical Gears Shaft Seal: Viton Lip Seals Standard, Buna Lip Seal Optional. Shaft: Stainless Steel Shafts Motor / Drive: The pump is driven directly from the electric motor shaft by means of a flexible coupling. An aluminum adapter connects the pump to the motor. We have many motor options and can assemble for you.    CHARACTERISTICS BRONZE CLOSE COUPLED ROTARY GEAR PUMPS   Service life will be increased substantially if the liquid pumped is clean and has some degree of lubricity. Liquids compatible with bronze and stainless steel can be pumped providing proper seal has been specified. Close tolerances and the positive pumping action make the rotary gear pump capable of lifting water on the suction side as high as 20 feet.   Oberdorfer Gear Pump Bronze 1 1/4"NPT Viton Lip Seal With Bracket 182TC/184TC  

Oberdorfer N1100 Series Gear Pump FEATURES Pump Body: Bronze Ports: 1 1/4" NPT Flow: 40 GPM Max Pressure: 150 PSI Max Bearings: Self-Lubricating Carbon Bearings Gears: Bronze Helical Gears Shaft Seal: Viton Lip Seals Standard, Buna Lip Seal Optional. Shaft: Stainless Steel Shafts Motor / Drive: The pump is driven directly from the electric motor shaft by means of a flexible coupling. An aluminum adapter connects the pump to the motor. We have many motor options and can assemble for you.     APPLICATIONS / CHARACTERISTICS BRONZE CLOSE COUPLED ROTARY GEAR PUMPS Service life will be increased substantially if the liquid pumped is clean and has some degree of lubricity. Liquids compatible with bronze and stainless steel can be pumped providing proper seal has been specified. Close tolerances and the positive pumping action make the rotary gear pump capable of lifting water on the suction side as high as 20 feet.      Oberdorfer Gear Pump Bronze 1 1/4"NPT Viton Lip Seal With Bracket 213TC/215TC  

Oberdorfer N999N Gear Pump Ped 1/4" W/56  

Oberdorfer N3000 Gear Pump Ped Mnt 3/8" Brz  

Oberdorfer N3000L Gear Pump Ped Mt 1/2 Brz  

Oberdorfer N4000 Gear Pump Ped Mnt Carbon  

Oberdorfer N3000R Gear Pump Ped Mnt 3/8" Rv