Flexible Impeller Pumps | Durable, Efficient, Marine & Industrial Use

Reliable Pumps for Tough Condition

Welcome to the world of innovative flexible pumps, setting new standards in the industrial, marine, and environmental sectors. Our Flexible Rubber Pumps are characterized by excellent performance, reliability, and exceptional corrosion resistance, thanks to the use of top-quality materials like bronze and 303 stainless steel.

How Does an Impeller Pump Work?

Impeller pumps are positive-displacement pumps. The rotor with flexible vanes is mounted centered in a circular housing which has a compressed area at one side. Flexible blades on the periphery of the impeller provide pumping action. While the impeller rotates the liquid between the blades is continuously squeezed out into the discharge port by a cam located inside the pumping chamber. The flow may be throttled or shut off for a short period on the discharge side without the need for a relief valve.

Discharge
The vanes on the impeller are compressed within the chamber allowing constant discharge through the outlet port of the pump.

Flow
The impeller rotates and moves the liquid from the suction side of the pump to the discharge side.

Suction
The rotation of the impeller while leaving the cam creates a vacuum type suction which draws the fluid into the pumps chamber.

Advantages of Our Rubber Pumps

Efficiency: Flow rates up to 58 GPM (220 lpm) and pressure up to 42 PSIG (2.9 bar), ensuring effective operation across a wide range of applications.
Durability: Built with bronze and shafts made from high-chrome SST, providing unmatched corrosion resistance.
Flexibility: Available in pedestal-style or flange-mounted configurations to suit your needs.
Materials: Flexible impellers made from neoprene or Buna-N, compatible with various types of liquids, including raw water, wastewater, and industrial fluids.

Operating Principle

Flexible Rubber Pumps operate as positive-displacement pumps, where the rotor with flexible vanes effectively draws and transports the liquid within the pump chamber. Due to the ability of the vanes to compress and rebound, our pumps are ideal for applications requiring consistent flow and high pressure resilience.

Typical Applications

Our pumps are designed for a wide spectrum of uses, including:

Marine Industry:
Engine cooling, gray and black water removal, bilge systems.
Process Industry:
Slurry transfer, contaminated fluid handling, drywall manufacturing.
Aviation Industry:
Tire inflation, coolant systems.
Environmental Protection:
Contaminated water transfer and groundwater sampling.

Flexible Impeller Pumps – Performance at a Glance

Explore our comprehensive selection chart for Oberdorfer flexible rubber impeller pumps. Quickly compare models by port size, capacity, head, speed, and mounting options to find the perfect pump for your application. Engineered for reliability and versatility, these pumps deliver consistent performance across a wide range of industrial and marine uses.

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