A flexible impeller pump provide an efficient solution to most raw water pumping needs. The pumps are self-priming and can pass fairly large solids without clogging or damaging the pumps. Our engine cooling pumps are designed to the demands of engine manufacturers and are built to take rough treatment. We supply engine cooling pumps to the world’s leading marine motor manufacturers, not just because of our renowned pumps; but also because of our advanced original impeller design and technology – the heart of an engine cooling pump.
With their high level of flexibility, these pumps are ideally suited for use in boats as bilge pumps, deckwash pumps, fresh water pumps and refuelling pumps for oil and diesel. These pumps may be combined with a vacuum switch for automatic operation. Full range of capacities from 15 – 55 l/min.
All motors are heavy duty to provide long service life even under heavy use. Available in 12 or 24 volts.
FLEXIBLE IMPELLERS – OPERATING PRINCIPLE
• A vacuum is created as the flexible impeller vanes straighten upon leaving the cam, drawing liquid into the pump.
• The rotating impeller carries liquid from the inlet to the outlet port. As a consequence of their design, a flexible impeller pump can pass fairly large solids.
• When the flexible impeller vanes regain contact with the cam, they bend and the liquid is discharged from the pump in a uniform flow. Liquids can be pumped in the opposite direction by reversing the rotation of the pump.
Flexible Impeller Pumps and Impellers
Benefits with SPX FLOW Johnson Pump Original Impellers:
• Ensures correct cooling flow
• Significantly longer service life
• Excellent self-priming capability
• Ensures sufficient cooling directly at start up
• Our impellers are manufactured in different compounds to strict tolerances for optimal functionality
• Correct impeller dimensions
The Unique MC97 rubber compound in many of our impellers
provides maximum life, especially for applications where the
end user doesn’t run the engine on a regular basis:
– Stable pressure delivery over time
– Minimized failures due to fatigue
– Minimized swelling
The Heavy Duty range of multi-purpose bronze pumps are raw water resistant and have a compact design. These pumps are designed for a number of applications onboard and have gained a time-tested reputation for quality and reliability.
With excellent self-priming capability, these pumps are ideal as cooling water pumps for marine engines, bilge pumps, deckwash pumps, fresh water pumps, fuel-transfer pumps and other applications.
These pumps are also ideally suited on shore for emptying septic tanks and for flushing clean and filling water tanks.
Available in sizes from ⅜” to 1½” (4 l/min to 279 l/min).
FLEXIBLE IMPELLERS – OPERATING PRINCIPLE
• A vacuum is created as the flexible impeller vanes straighten upon leaving the cam, drawing liquid into the pump.
• The rotating impeller carries liquid from the inlet to the outlet port. As a consequence of their design, flexible impeller pumps can pass fairly large solids.
• When the flexible impeller vanes regain contact with the cam, they bend and the liquid is discharged from the pump in a uniform flow. Liquids can be pumped in the opposite direction by reversing the rotation of the pump.
