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Burt Process Equipment
A premier source for reliable pumps and process controls, backed by advanced expertise, strong product support, and customer-focused service.
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Burt Tools & Automation
Industrial-grade tools, including Lifting Solutions, Engine Starting, Air Motors, Assembly Solutions, Construction, Drilling, Bolting, and Surface Preparation Tools.
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Burt Engineered Systems
A global leader in process, fluid handling, and wastewater treatment systems, fully engineered and precision-built from concept to operation.
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ProFlow - Modular Fluid Systems
For over 30 years, ProFlow has delivered modular fluid handling systems backed by expert support, advanced technology, and uncompromising quality worldwide.
Visit the website >>Marine Engine Cooling Application
Oberdorfer flexible impeller pumps are designed for almost all raw water engines cooling systems. These pumps incorporate some of the most advanced design features available to assure long and trouble-free service on severe marine applications.
- 201M series
- N202M series
- 402M series
Oberdorfer 201M Flexible Impeller Pump
201M models are constructed of high-quality bronze with stainless steel grade 303 shafts for maximum corrosion resistance. Top-of-the-line models have ball bearings and mechanical seals while others have bronze or carbon bearings and lip-type seals. Impellers are typically made of neoprene rubber with nitrile impellers as an option. Flexible blades on the periphery of the impeller provide the pumping action. Impellers rotate the liquid between the blades which is continuously squeezed out into the discharge port by a machined cam located inside the pump chamber.
Features and Benefits
- Max. flow: 11.3 gpm
- Max. pressure: 26 psi
- Bronze Construction - Corrosion Resistance
- Large Suction and Discharge Ports
- Polytetrafluoroethylene (PTFE) Barrier Seals Protecting Ball Bearings
- Mechanical Carbon Ring, Ceramic Face Main
- Pump Seal Standard, Optional Nitrile Lip Seal
- Two Sealed Ball Bearings Spaced for Maximum Load Ability
- Large Vent & Drain Openings Separate Seal & Bearing Areas
- Shaft Slinger for Additional Bearing Protection
- Neoprene Impeller Standard, Nitrile Impeller Optional
- Passivated 316 Stainless Steel Shaft
- Extra Capacity Ball Bearings plus Rugged Construction for Prolonged Service Life
- Impeller & Cam Easily Replaced
Oberdorfer N202M Flexible Impeller Pump
The N202M bronze impeller pumps offer a range of practical features, such as a user-friendly drain plug, compatibility with both 2 or 5-bolt flange mounting, a choice between slotted shaft drive or male tang drive options, upward-facing inlet and outlet ports, and generously sized drain and vent openings. These pumps come with standard neoprene rubber impellers, but you also have the option to select nitrile impellers. The impeller's flexible blades on its outer edge facilitate the pumping process, as the impeller rotates, squeezing the liquid between these blades continuously towards the discharge port. This action is assisted by a precisely machined cam located within the pump chamber.
Features and Benefits
- Max. flow: 12.5 gpm
- Max. pressure: 26 psi
- Rugged Simplicity
- Corrosion Resistant
- Convenient Drain Plug
- 2 Bolt or 5 Bolt Flange Mounting
- Slotted Shaft Drive or Male Tang Drive
- 2 Separate Seals: Main Pump and Flange Mounting
- “Up” Direction In & Out Ports
- Large Drain and Vent Openings
- High Chrome Nickel Stainless Steel Shaft
- Impeller Easily Replaced
- Machined In Cam
Oberdorfer 402M Flexible Impeller Pump
The 402M Flexible Impeller pumps are constructed from high quality bronze to ensure the highest level of corrosion resistance, and their shafts are crafted from premium-grade stainless steel, specifically stainless steel grade 303. The top-tier models feature advanced components such as ball bearings and mechanical seals, while other variants are equipped with either bronze or carbon bearings and lip-type seals. The impellers are made from either neoprene rubber or nitrile rubber materials. The pumping action is facilitated by the flexible blades on the impeller's periphery. As the impeller rotates, these blades continuously expel the liquid between them into the discharge port, thanks to a precisely machined cam located inside the pump chamber.
402M models are designed for Daytona Marine Engine using Chevrolet Blocks NO 327 and 427. Designed for American Marine LTD. Using John Deere Block NO JD6404 DR-15 and GMC Block Toroflow 63701893. Adaptable to other engines using these blocks.
Features and Benefits
- Max. flow: 36 gpm
- Max. pressure: 34.6 psi
- Bronze Construction - Corrosion Resistance
- Reversible Wearplate
- Polytetrafluoroethylene (PTFE) Barrier Seals Protecting Ball Bearings
- Mechanical Carbon Ring, Ceramic Face Main Pump Seal
- Two Sealed Ball Bearings Spaced for Maximum Load Ability
- Large Vent & Drain Openings Separate Seal & Bearing Areas
- Shaft Slinger for Additional Bearing Protection
- Neoprene Impeller
- High Chrome Nickel Stainless Steel Shaft
- O-Ring Seal Between Body and Cover Eliminates Gasket Problems
- Impeller & Cam Easily Replaced
