Oberdorfer 2981C Chemsteel Pedestal Gear Pump
The Oberdorfer 2981C Chemsteel pump is a rugged, pedestal-mounted rotary gear pump built to move corrosive and hard-to-handle liquids without breaking down under pressure. Made by Oberdorfer, a fluid-handling brand now operating as part of Ingersoll Rand, the 2981C pairs Chemsteel's corrosion-resistant construction with a compact pedestal footprint that mounts to a bench, skid, or drive assembly wherever a dependable transfer pump is needed.
What sets this pump apart is its versatility. While plenty of Oberdorfer pumps end up on boats moving raw water or fuel, the 2981C is just as much at home in a chemical plant, an agricultural sprayer rig, or a manufacturing line handling solvents, acids, or specialty fluids that would eat through a standard cast-iron pump. Its rotary gear design is self-priming and can run in either direction, giving installers flexibility when routing lines or retrofitting an existing system, and its mechanical seal keeps aggressive fluids contained rather than weeping past the shaft over time.
For plant engineers, maintenance teams, and OEM integrators, the appeal of the 2981C comes down to straightforward reliability: a proven gear-pump platform, materials chosen to resist the fluids that damage lesser pumps, and a mounting style that drops into existing drive setups without a redesign. It's a practical choice when the job calls for consistent, corrosion-resistant fluid transfer day after day.
Key Features
- Chemsteel corrosion-resistant construction suited for aggressive chemicals and industrial fluids
- Pedestal-mount design for flexible belt-drive or direct-drive installation
- Self-priming rotary gear operation for reliable, consistent fluid transfer
- Bi-directional rotation capability for flexible plumbing and retrofit installs
- Mechanical shaft seal for leak-resistant, long-term operation
- Rugged build engineered for continuous-duty industrial service
Applications
- Chemical processing and transfer
- Industrial fluid handling systems
- Agricultural spraying and liquid transfer equipment
- Fuel and lubricant transfer
- Water and wastewater treatment support
- General industrial and OEM equipment integration
Specifications
- Manufacturer: Oberdorfer Pumps, an Ingersoll Rand business
- Part Number / Model: 2981C
- Pump Type: Chemsteel pedestal-mount rotary gear pump
- Port Connection: Threaded NPT inlet and outlet ports
- Construction Material: Corrosion-resistant Chemsteel alloy
- Drive Configuration: Pedestal mount for belt or direct coupling
- Rotation: Bi-directional
- Seal Type: Mechanical shaft seal
Frequently Asked Questions
Q: What types of fluids is the Oberdorfer 2981C designed to handle?
A: The 2981C is built for corrosive and chemically aggressive liquids, including solvents, acids, and industrial-grade fluids that would damage standard cast-iron or bronze pumps.
Q: Is the Oberdorfer 2981C only used in marine applications?
A: No. While Oberdorfer is well known in marine fluid handling, the 2981C's Chemsteel construction makes it equally suited to chemical processing, agricultural equipment, and general industrial transfer systems.
Q: Can the 2981C be installed with either a belt drive or a direct drive?
A: Yes. Its pedestal-mount configuration is designed to accept either a belt-driven or direct-coupled drive setup, giving installers flexibility in how the pump is powered.
Q: Does the 2981C require priming before use?
A: No. It uses a self-priming rotary gear design, allowing it to draw fluid into the pump without a separate priming step under normal operating conditions.
Q: What maintenance does the mechanical seal on the 2981C require?
A: Like most mechanical seals, it should be inspected periodically for wear or leakage and replaced if it shows signs of degradation, particularly after extended exposure to highly corrosive fluids.
CLRMarine
