Oberdorfer Pumps has been making high-quality dependable pumps for almost every flow application. Dating back to 1890 when we manufactured our first bronze gear pump, our many loyal customers can attest that we’re an industry leader in innovation and design. From our trusted line of gear pumps to our durable CHEMSTEEL™ pumps line to our centrifugal and flexible impeller pumps, whether your needs are marine, agriculture or chemical processing, the same quality and craftsmanship goes into every single Oberdorfer™ product. Manufactured at our plant in Syracuse, New York, consistent inventory and fast delivery are an Oberdorfer™ standard and set us apart from other pump manufacturers.
Gear pumps can be found everywhere. From car washes to paper mills and water treatment to mining, you’ll find Oberdorfer™ pumps used in nearly every industry. The Oberdorfer™ name is trusted by hundreds of leading OEMs. Our reliability and simplicity make aftermarket integration into your existing systems seamless. Oberdorfer™ is your industrial pump solution.
What do embalming, truck driving and aviation have in common? The answer is an Oberdorfer™ pump. We’ve been keeping the wheels of commerce turning and we have no plans to stop. Thanks to our multiline product family and more than 100 years of pumping innovation, no matter your application, there’s an Oberdorfer™ product that can be easily integrated into your system.
You want a brand you can trust on the water and Oberdorfer™ pumps deliver efficiency and peace of mind. Our centrifugal bronze pumps with Nickel Alloy Shaft are ideal in marine applications such as air conditioning, bilge and seawater recirculation. Many of the leading marine manufacturers and boat operators have come to rely on Oberdorfer™ for fuel transfer and conditioning, ballast trimming and oil transfer.
Oberdorfer™ pumps are the first choice of OEMs and engineers in glycol transfer applications. Whether used as a precursor in the production of polymers, in refrigeration or dehydration systems, these pumps are reliable and built to ensure consistent pressure and control levels across a wide variety of chemical processing applications. Oberdorfer™ should be your first choice in a system that requires a coolant pump.
These pumps are bidirectional. The standard pump motor unit is set up for normal rotation (clockwise when viewing the pump from the shaft end). Reversing the motor rotation will reverse the "in" and "out" ports and also requires changing the relief valve location. C990RX2B1 is equipped with an integrated relief valve setup for internal bypassing. The relief valve must always be located on the discharge side of the pump. This relief valve is not intended to be a metering or flow control device. Its purpose is to function as a discharge pressure relief to guard against intermittent downstream system restrictions. Overheating can occur within 5 to 10 minutes if the discharge line is completely shut off. The relief valve is located on the discharge side of the pump. The pressure relief setting is not set at the factory. To increase pressure, turn the relief valve adjusting screw in a clockwise direction.
Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are made 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.
G & H series pumps are positive displacement helical gear pumps offering the following unique features. Both are uni-directional, i.e. rotation must be specified when pump is ordered. The reason for this requirement is that the bearing are force lubricated from the pumps pressure side to reduce seal wear and increase seal life. Rotation change and part reversal can be achieved by rotation pump over 180 degrees.
Tailored specifically for wear resistance and long life in lubricating fluid service. They are designed to handle a wide range of fluids at temperatures to 200°F, at pressures up to 150 psi, and at shaft speeds to 1750 RPM. Viscous liquids require reduced shaft speeds. Standard Lubricating Fluid Service: Shafting is 303 stainless steel, gearing is ferrous (optional 416SS gears). Rugged ductile iron housings. High grade carbon-graphite bushing style bearings are used. The Standard Mechanical Shaft Steel is a stainless cased Nitrile elastomer bellows and oring with carbon and ceramic wear faces. An optional fluoroelastomer mechanical seal with carbon and ceramic wear faces is also available. Recommended liquid temperature range is 32oF to 200oF.
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.
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.
Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are made 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.
Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are made 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.
The carbonator motor mounting uses a circular clamp, similar to a hose clamp, as means of attaching the pump to a specially machined hub on the motor. This concept was first developed for the vending machine industry to pump carbonated beverages in soft drink dispensers. The main advantages are compactness and economy due to the elimination of the adapter casting. The rotary gear pump features an all bronze design and 303 stainless steel shafts with options of non-metallic gears and a variety of shaft seals. The built-in relief valve is available in two options; internal recirculation to suction side or external connection for return line to supply tank.
CHEMSTEEL™ pumps are designed to handle common and highly corrosive liquids that must be pumped under pressure. Manufactured to extremely precise tolerance, the CHEMSTEEL™ pump line prevents system contamination while maintaining the purity and integrity of the liquid being pumped. Its rugged, three-section, O-ring sealed thru-bolt construction provides ease of servicing and parts replacement. Helical gearing offers noise reduction by as much as 10db, while the tandem pumps double the output flow for a single fluid, or with isolation, handle other fluids in direct ratio to the first. Additionally, CHEMSTEEL™ pumps offer bi-directional operation for applications requiring reversing flow.