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Oberdorfer Model N991-32 Series 12V Rotary Gear Pump, US $130.00 – Picture 0
Oberdorfer Model N991-32 Series 12V Rotary Gear Pump, US $130.00 – Picture 0

Oberdorfer Model N991-32 Series 12v Rotary Gear Pump

US $130.00

  • Saint Louis, Missouri, United States
  • Jan 30th
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These compact DC portable units are convenient for on-site servicing of vehicles, machinery and field equipment. Use these pumps for pumping oil direct from crankcase or oil resevoir, drums, and containers, as well as for pressure washdown, transferring diesel fuel to vehicles or pumping other liquids and chemicals compatible with the pump materials of construction. Pump housing and gears are made of top quality bronze and pump shaft is 303 stainless steel. Bearings are designed of high performance with 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. Liquids compatible with bronze, stainless steel and the Buna-N rubber lip seal can be pumped. 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. Features: Compact design eases installation and use in limited space areas Construction is bronze and stainless steel wetted components Close tolerance design allows for consistent performance Self-lubricating bearings Complete unit with motor Slotted motor base with rubber grommets Permanent magnet, rigid-base motor Specifications: Power - 12 volts DC Maximum discharge of 3.6 gallons/minute Maximum drive 1/10 HP, 2920 RPM Recommended pressure limits - 100 PSI (water)/150 PSI (oil and lubricants) Port size - 3/8" Maximum shaft speed - 1750 RPM Temperature limit for bronze pumps is 212° F. PH-range for bronze pumps is from 4 to 11

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